posted 03-17-2015 03:25 PM               

Sierra Nevada Corporation Unveils New Dream Chaser Cargo System

Sierra Nevada Corporation (SNC) unveiled a new Dream Chaser mission variant today, the Dream Chaser Cargo System, SNC's complete system solution for NASA's Commercial Resupply Services 2 (CRS2) contract.

The Dream Chaser Cargo System features include: an innovative folding-wing design which allows the Dream Chaser spacecraft to fit inside existing fairings, making it compatible with a suite of launch vehicles; the ability to exceed all of NASA's cargo requirements for pressurized and unpressurized cargo during flights to the International Space Station (ISS); high reusability, allowing it to serve the required number of missions for the full life expectancy of the ISS; non-toxic, non-hypergolic propulsion system and other fluids; low-g entry to a runway landing with immediate access to cargo.

"SNC is proud to offer NASA a complete system that exceeds all criteria set forth by NASA in the proposal," said Mark N. Sirangelo, corporate vice president and head of SNC's Space Systems. "The autonomous and upgraded Dream Chaser Cargo System is a mission variant of the Dream Chaser Space System, whose heritage includes over 10 years of development and maturation, the last five of which were complete as part of an ongoing public-private partnership between SNC and NASA."

"Our Dream Chaser Cargo System provides unrivaled capability for pressurized and unpressurized cargo transportation, including accelerated return of cargo and critical science on every mission. It also enables a wide portfolio of other space exploration capabilities, including servicing/construction for future space stations, satellite servicing and deployment, as well as retrieval and orbital debris removal."

"SNC continues to grow its U.S. team which has expanded to 30 states. We are also expanding our international partnerships, and have agreements in place with many of the current ISS partners and global space agencies. Our SNC team looks forward to becoming a cargo transportation provider for NASA missions."

posted 01-14-2016 11:16 PM               

NASA Selects Sierra Nevada Corporation's Dream Chaser Spacecraft for Commercial Resupply Services 2 Contract

Today, NASA competitively selected Sierra Nevada Corporation's (SNC) Space Systems to receive a multi-year contract to provide cargo delivery, return and disposal services for the International Space Station (ISS). SNC received a Commercial Resupply Services 2 (CRS2) contract, to fulfill a minimum of six cargo delivery service missions to and from the ISS utilizing SNC's Dream Chaser Cargo System. NASA's selection of SNC for the CRS2 program will enable spacecraft reusability and runway landings for United States' cargo delivery and access to the ISS through 2024.

"SNC is honored to be selected by NASA for this critical U.S. program," said Eren Ozmen, president of Sierra Nevada Corporation. "In such a major competition, we are truly humbled by the show of confidence in SNC and look forward to successfully demonstrating the extensive capabilities of the Dream Chaser spacecraft to the world. SNC's receipt of this award is an American Dream come true for all of us. We thank NASA, the Administration and Congress for recognizing the importance of this vital program by supporting the CRS2 contract."

SNC is the owner and prime operator of the reusable Dream Chaser spacecraft, which has been in development for over 10 years, including six years as part of NASA's Commercial Crew Program and leverages over 40 years of NASA development and space shuttle heritage.

"The Dream Chaser Cargo System offers NASA a safe, reliable and affordable solution for ISS cargo delivery, return and disposal, ensuring the effective utilization and sustainability of the ISS for years to come," said Mark N. Sirangelo, corporate vice president of SNC's Space Systems. "Within a few short years, the world will once again see a United States winged vehicle launch and return from space to a runway landing. We wanted to thank our more than 30 industry, university and NASA center partners for helping us make history and open up the next generation of spaceflight."

SNC's Dream Chaser Cargo System features include:

• An innovative folding-wing design which allows the Dream Chaser spacecraft to fit inside existing launch vehicle fairings, making it compatible with a diverse suite of rockets and assuring access to space
  
• The ability to simultaneously deliver 5,500 kg of pressurized and unpressurized cargo to the ISS, which exceeds NASA's CRS2 RFP requirements
  
• High reusability that reduces costs and enables quick reflight. Responsive pressurized cargo return capability – ensuring scientific experiments are promptly returned to the researchers as intended and without contamination
  
• Low-g reentry and gentle runway landing – critical for the return of sensitive payloads, scientific experiments and immediate access to cargo
  
• All non-toxic propellants and consumables, making the Dream Chaser spacecraft the first vehicle in history to achieve this level of environmental responsibility

The Dream Chaser program will continue to be based in Louisville, Colorado. SNC expects to significantly expand operations in Colorado and throughout the United States, in conjunction with its international partners, to support contract requirements. The growing employment scope and economic impact of SNC and its partner organizations – the Dream Team – now spans over 25 states and 15 countries and will continue to grow under the CRS2 contract.

posted 07-11-2016 12:31 PM               

Sierra Nevada Corporation Completes First Dream Chaser Cargo Service Milestone under NASA CRS2 Contract

Sierra Nevada Corporation (SNC) is pleased to announce the successful completion of ISS Integration Certification Milestone 1 for the Dream Chaser Cargo System under NASA's Commercial Resupply Services 2 (CRS2) contract.

Under this milestone, NASA approved SNC's complete program implementation plan for the design, development, test and evaluation of the Dream Chaser Cargo System. This includes plans and processes for meeting technical performance and CRS2 integration schedules associated with execution of docking and berthing missions to the International Space Station (ISS). Details included supplier plans, integration schedules, organizational structure and status of program risks and risk mitigations.

Under the CRS2 contract, Dream Chaser will provide a minimum of six cargo delivery services to and from the ISS between 2019 and 2024.

More Than a Milestone

"The accelerated completion of the first milestone under the CRS2 contract award marks significant progress for SNC and the Dream Chaser program", said Mark N. Sirangelo, corporate vice president of SNC's Space Systems business area. "We are thankful for the support we've received from NASA. The prompt completion of this essential program milestone is a big step in bringing us closer to returning a winged, runway-landing vehicle to space. This momentum will carry us with confidence in developing a reliable and affordable solution for ISS cargo delivery, return and disposal."

In addition to SNC internal program integration, the milestone review covers the strategic plan for the involvement of external entities including international agreements and plans for obtaining necessary licenses from U.S. agencies, including the Federal Communications Commission and Federal Aviation Administration.

Flight Testing Continues

In parallel with the continued execution of CRS2 milestones, SNC plans to resume the next phase of flight testing for Dream Chaser later this year.

This vehicle was originally developed and tested in partnership with NASA's Commercial Crew Program through Space Act Agreements (SAA). It was previously flown at NASA's Armstrong Flight Research Center and is being prepared for its second flight test through the SAA. It has been significantly upgraded in multiple areas to allow for testing to advance and verify critical systems which will also be used in the next generation vehicle currently under development for the forthcoming NASA ISS cargo resupply missions.

posted 07-25-2016 12:08 PM               

Sierra Nevada Corporation Passes Second Milestone – Dream Chaser Spacecraft on Track to Supply Cargo to ISS

Sierra Nevada Corporation (SNC) has passed the second Integration Certification Milestone under NASA's Commercial Resupply Services 2 (CRS-2) contract. NASA assessed and fully approved SNC's detailed approach for getting the Dream Chaser Cargo System to the International Space Station (ISS).

SNC's approved strategy demonstrates a thorough understanding of design requirements and available resources on both a system and subsystem level. Dream Chaser will provide a minimum of six cargo delivery missions to and from the ISS between 2019 and 2024. The first milestone was passed several weeks ago and outlined technical, logistic and schedule procedures for the program.

"Successful completion of the second Integration Certification Milestone within six weeks of the first major milestone demonstrates that the Dream Chaser team is moving at full-speed to meet NASA's cargo delivery needs," said Steve Lindsey, senior director of programs for SNC's Space Systems business area and Dream Chaser co-program manager. "We very much appreciate NASA's help and support through this milestone and those to follow. Our collective SNC/NASA team is confident in our design and strategy for the future and look forward to completing the work necessary to bring our unique cargo services solution to the ISS as rapidly as possible."

Milestone 2 Key Components

Completion of Milestone 2 means NASA and SNC collectively agree on the certification criteria used to confirm Dream Chaser designs meet CRS-2 mission requirements. These qualification and verification plans will be utilized during future integrated design and test milestones to validate Dream Chaser Cargo System capabilities.

Dream Chaser Flight Tests Will Support CRS2 Progress

The current flight vehicle has been upgraded with several cargo system design components to support multiple test objectives — verifying the spacecraft's performance during final approach and landing, directly supporting the CRS-2 Certification Plan approved during Milestone 2. This will ultimately accelerate development of the first orbital mission and increase confidence through flight-tested systems.

The vehicle was originally developed and tested in partnership with NASA's Commercial Crew Program, which included a full-test campaign at NASA's Armstrong Flight Research Center leading up to the October 2013 approach and landing test.

posted 05-25-2017 02:09 PM               

Dream Chaser Spacecraft Passes Major Milestone

Completes Successful Integration Review for Space Station Resupply Mission

Sierra Nevada Corporation (SNC) successfully passed the third integration milestone for the Dream Chaser program under the NASA Commercial Resupply Services (CRS2) program, bringing it a major step closer to providing resupply services to the International Space Station (ISS).

CRS2 Integration Review #3 (IR3) confirmed SNC's Dream Chaser Cargo System design meets NASA's key requirements and maximizes probability of mission success during future flights. The spacecraft is scheduled for at least six missions between 2019 and 2024. The reliability of the Dream Chaser design was also thoroughly reviewed as part of NASA's Phase I Safety Review Process, which successfully demonstrated safety and mission assurance criteria. The reviews covered all stages of mission operations including ground, launch, flight and landing.

"Passing the third CRS2 integration milestone is a really big deal for the program and its future," said Steve Lindsey, vice president of Space Exploration Systems for SNC's Space Systems business area. "We are proud of this accomplishment and are well on our way towards completing the next critical milestone and the remaining developmental phases. It's a great feeling to be executing all our milestones on schedule and to be moving forward to our operational flight."

The spacecraft's unique cargo design transports more cargo mass (5,500 kilograms) to the ISS each mission. In addition, a significant amount of cargo, almost 2,000 kilograms is directly returned from the ISS to a gentle runway landing at a pinpoint location. Dream Chaser's all non-toxic systems design allows personnel to simply walk up to the vehicle after landing, providing immediate access to time-critical science as soon as the wheels stop. .

The complex and thorough review process found no significant design, build or system issues and underscored the Dream Chaser's readiness for flight.

The major elements of Milestone 3 included:

• Successful completion of the NASA Phase 1 Safety Review
  
• 32 Hazard Reports and 16 Safety Data Packages approved by NASA
  
• Dream Chaser Architectural Design's met all CRS2 requirements (hardware, software, flight dynamics, thermal control, etc.)
  
• More than 100 detailed design documents were delivered to NASA along with 30+ design reviews
  
• During the three-day IR3 review, more than 1,000 charts were briefed to the approximate 45 member NASA and Federal Aviation Administration (FAA) team, which demonstrated that
• Dream Chaser is at Preliminary Design Review level of maturity
  
• Launch vehicle operations, outside subcontracts and agreements
  
• Range safety plan, as well as FAA, Federal Communications Commission (FCC) and National
• Telecommunications and Information Administration (NTIA) licensing
  
• 5 Safety Review Phase 1 meetings were conducted prior to the IR3 review and involved the delivery of 46 individual Safety Data Packages developed under our S&MA team.

In addition to completing this milestone, the Dream Chaser atmospheric test vehicle is in preparations for flight testing that will help verify these designs. The spacecraft is currently testing at NASA's Armstrong Flight Research Center in California, having just successfully completed Phase One ground testing leading up to its second free flight test later this year.

posted 07-19-2017 05:25 AM               

Paragon Space Development Corporation Named by Sierra Nevada Corporation Supplier for Dream Chaser Spacecraft Cargo System

Paragon was recently selected by Sierra Nevada Corporation (SNC) to provide flight hardware for its Dream Chaser spacecraft. In 2016, NASA selected SNC's Dream Chaser to transport pressurized and unpressurized cargo to and from the International Space Station (ISS) with return and disposal services.

Paragon will provide the Thermal Control Radiators for the vehicle's cargo module. The solution will leverage Paragon's patented Extruded Radiator (xRAD) technology, a state-of-the-art, cost-effective radiator solution which eliminates the structural and thermal inefficiencies associated with bonded radiators structures. The xRAD technology also increases vehicle integration flexibility and reduces development time, manufacturing risks, and manufacturing costs.

Delivery of flight radiators is to commence in early 2019 with deliveries through 2022. As a part of the disposable cargo module, the radiators will burn up during reentry at the end of each mission.

"Paragon's offering was a result of years of Paragon's directed internal R&D funding that brought the technique and practical application out of the laboratory and onto the factory floor to benefit our customers that are needing better-value radiator solutions," said Grant Anderson, President & CEO of Paragon. "This multi-unit and multi-mission order will be just the beginning of a decades-long relationship to provide high quality and competitively priced radiator hardware to Sierra Nevada Corporation's Dream Chaser family of vehicles."

Earlier this year, SNC successfully passed the third integration milestone for the Dream Chaser under the NASA Commercial Resupply Services (CRS2) program, confirming that the company's Dream Chaser vehicle can meet NASA requirements for transporting cargo to and from the space station. The reliability of the Dream Chaser design was also thoroughly reviewed as part of NASA's Phase I Safety Review Process, which successfully demonstrated safety and mission assurance criteria. The reviews covered all stages of mission operations including ground, launch, flight, and landing.

"SNC is pleased to be working with Paragon on the Dream Chaser program," said Mark Sirangelo, corporate vice president of SNC's Space Systems business area. "Their radiator technology is a key component in SNC's ability to deliver a safe, affordable, flexible and reliable system."

posted 07-19-2017 05:19 PM               

United Launch Alliance Signs Contract with Sierra Nevada Corporation to Launch Dream Chaser spacecraft to deliver Cargo to International Space Station

Sierra Nevada Corporation (SNC) announced that it selected United Launch Alliance's (ULA's) commercially developed Atlas V rocket to launch the first two missions of its Dream Chaser cargo system in support of NASA's Cargo Resupply Services 2 (CRS2) contract.

"ULA is pleased to partner with Sierra Nevada Corporation to launch its Dream Chaser cargo system to the International Space Station in less than three years," said Gary Wentz, ULA vice president of Human and Commercial Systems. "We recognize the importance of on time and reliable transportation of crew and cargo to Station and are honored the Atlas V was selected to continue to launch cargo resupply missions for NASA."

The two awarded Atlas V missions will carry pressurized and unpressurized cargo to the International Space Station (ISS). The first mission is set to lift off in 2020 from Space Launch Complex 41 at Cape Canaveral Air Force Station, in Florida. The second contracted mission is scheduled to lift off in 2021. Dream Chaser will launch atop an Atlas V 552, with a dual engine Centaur upper stage.

"SNC recognizes the proven reliability of the Atlas V rocket and its availability and schedule performance makes it the right choice for the first two flights of the Dream Chaser," said Mark Sirangelo, corporate vice president of SNC's Space Systems business area. "ULA is an important player in the market and we appreciate their history and continued contributions to space flights and are pleased to support the aerospace community in Colorado and Alabama," added Sirangelo.

The Atlas V has received NASA's highest and most rigorous Category 3 Certification, which allows the Atlas V family of launch vehicles to fly NASA's most complex and critical missions.

The Dream Chaser spacecraft has been in development for more than 10 years, including six years as part of NASA's Commercial Crew Program and leverages more than 40 years of NASA spaceflight and space shuttle heritage. In 2016, Dream Chaser was selected by NASA under the CRS2 contract to transport pressurized and unpressurized cargo to and from the ISS with return and disposal services.

posted 01-02-2018 05:04 PM               

Triumph Expands Space Applications with Contract for Dream Chaser Spacecraft Landing Gear System

Triumph Group, Inc. announced today that its Integrated Systems business unit will provide the landing gear system for the Dream Chaser spacecraft, a reusable, lifting-body vehicle in support of NASA's Commercial Resupply Services 2 (CRS2) program that will resupply the International Space Station. The contract for work was signed with Sierra Nevada Corporation (SNC), and includes the main and nose landing gear as well as integrated actuation solutions for the landing gear and gear door systems manufactured at Triumph's Redmond, Washington site.

"The landing gear system used on the Dream Chaser spacecraft showcases our ability to design and integrate reliable systems for use on advanced aerospace applications that can withstand extreme conditions like those found in space," said Tom Holzthum, executive vice president, Triumph Integrated Systems. "We are proud to once again have our products support missions that serve the International Space Station."

Triumph Integrated Systems previously partnered with SNC to provide consulting services for the Commercial Crew Integrated Capability (CCiCap) program with NASA, also in support of the space station. In addition, the company also provides high precision miniature motors to support robotic satellite demonstration missions.

"Space applications exemplify the breadth of our technical capability," said Holzthum. "Our components and systems can perform under the demanding conditions needed to support space exploration programs."

Triumph Group, Inc., headquartered in Berwyn, Pennsylvania, designs, engineers, manufactures, repairs and overhauls a broad portfolio of aircraft structures, components, accessories, subassemblies and systems. The company serves a broad, worldwide spectrum of the aviation industry, including original equipment manufacturers of commercial, regional, business and military aircraft and aircraft components, as well as commercial and regional airlines and air cargo carriers.

posted 01-05-2018 11:35 AM               

Sierra Nevada Corporation's Dream Chaser Spacecraft Passes Major NASA Milestone after Free-Flight Test

Sierra Nevada Corporation's (SNC) Dream Chaser program passed a major NASA milestone for its Commercial Crew Integrated Capability (CCiCAP) contract with the completion of a successful Free-Flight test, which produced subsonic flight and landing performance data.

Milestone 4B validated the spacecraft's design for a safe and reliable return of cargo services to Earth through a gentle runway landing, signaling the program is one step closer to orbital operations.

Above: The Dream Chaser lands after a successful Free-Flight test on Nov. 11, 2017.

The Dream Chaser will go to the space station for at least six cargo resupply missions starting in 2020 under a separate contract, NASA's Commercial Resupply Services 2 (CRS2).

The NASA Commercial Crew Program reviewed the data, confirming it fully met or exceeded all requirements and authorized full payment of the milestone. Additionally, SNC collected a significant amount of additional information that will be used for the final vehicle design.

"The test was a huge success and when we looked at the data we were thrilled to see how closely our flight performance projections matched the actual flight data," said Steve Lindsey, vice president of SNC's Space Exploration Systems business unit. "This gives us high confidence in our atmospheric flight performance as we move towards orbital operations."

The approach and landing test included intentional maneuvers both to assess the responsiveness of the Dream Chaser to control inputs and to measure the resulting stability of the vehicle under very dynamic, stressful conditions. This showcased the aerodynamic capability of the Dream Chaser as well as performance of the integrated computer system that autonomously returned the vehicle to a safe runway landing. These are critical components for orbital missions to and from the International Space Station.

Mark Sirangelo, executive vice president for SNC's Space Systems business area, commented, "Achievements of this magnitude require the involvement and collaboration of many people. The Free-Flight test took place at the same historic location where the sound barrier was broken 70 years ago and where the Space Shuttle program began 40 years ago. With that historic legacy, I would like to extend our sincere appreciation to our whole flight team."

"I want to especially thank NASA's Armstrong Flight Research Center Director, David McBride, the entire Armstrong team, the U.S. Air Force, NASA's Commercial Crew and CRS2 programs, and our industry partners, including Draper Laboratories, who helped design our flight software. Most importantly, I want to say how proud I am of the SNC Dream Chaser flight and program teams who have performed above and beyond to make the flight and milestone a success," Sirangelo added.

The Free-Flight test of the Dream Chaser was performed at Edwards Air Force Base, California on November 11. The vehicle's next milestone will be the CRS2 Dream Chaser Critical Design Review, scheduled for 2018.

posted 02-07-2018 02:41 PM               

Sierra Nevada Corporation Receives Official NASA Launch Window for Dream Chaser Spacecraft

First Launch to International Space Station Slated for Late 2020

Sierra Nevada Corporation (SNC) received NASA's Authority to Proceed for the Dream Chaser spacecraft's first mission, with a launch window for late 2020. The mission will provide cargo resupply to the International Space Station under the Commercial Resupply Services Contract 2 (CRS2).

"SNC has been successfully completing critical design milestones as approved by NASA, and having a timetable for the first launch is another important step achieved for us," said Fatih Ozmen, owner and CEO of SNC. "The team has worked so hard to get to this point and we can't wait to fulfill this mission for NASA."

Key Mission Capabilities:

• Delivers up to 5,500 kg (12,125 lb) of pressurized and unpressurized supplies and scientific research payloads

• Remains attached to the space station for extended periods so crew can transfer cargo and perform science laboratory operations

• Flying laboratory that allows scientists to send commands, receive data in real-time

• Powered payload science experiments can operate continuously during the mission

• Critical science is conducted from the pressurized cabin (crew-tended or autonomous)

• Unpressurized cargo/experiments are transferred to or from the space station via robotic operations

• Returns up to 2000kg of cargo via pinpoint landing at NASA Kennedy Space Center (KSC) Shuttle Landing Facility (SLF) for immediate post-landing handover to customer, maximizing the integrity of data collected on-orbit

"The Dream Chaser is going to be a tremendous help to the critical science and research happening on the space station," said Mark Sirangelo, executive vice president of SNC's Space Systems business area. "Receiving NASA's Authority to Proceed is a big step for the program. We can't wait to see the vehicle return to Kennedy Space Center to a runway landing, allowing immediate access to the science payloads being returned from the station."

posted 12-18-2018 09:23 PM               

Dream Chaser Spacecraft Passes Key NASA Milestone Production of Orbital Spacecraft to Begin

Sierra Nevada Corporation's (SNC) Dream Chaser spacecraft passed a key milestone for NASA's Commercial Resupply Services 2 (CRS-2) contract, validating design performance and clearing the way for full spacecraft production. The milestone marks completion of Integration Review 4 (IR4) demonstrating NASA's confidence in the safety and maturity of Dream Chaser's design.

"NASA's acknowledgement that SNC has completed this critical milestone and its approval of full production of the first Dream Chaser spacecraft is a major indication we are on the right path toward increasing vital science return for the industry," said John Curry, program director for CRS-2 under SNC's Space Systems business area.

Many critical parts of the orbital vehicle are already complete, built and being tested, including major structural components, thermal protection system tiles and avionics hardware. With the success of IR4, these components are now being integrated into the orbital vehicle assembly at SNC's Space Systems facilities in Louisville, CO.

Subject matter experts from NASA and SNC thoroughly reviewed the Dream Chaser spacecraft design and its integrated performance with launch, ground and flight elements. Based on system capabilities, design maturity and the extensive data products presented, SNC and NASA jointly concluded the Dream Chaser program was ready to move to full-scale spacecraft manufacturing and testing.

SNC's Dream Chaser spacecraft is slated to service the International Space Station as early as late 2020. Production includes both the uncrewed Dream Chaser winged vehicle and the cargo module, which remains attached to the winged vehicle during orbital operations.

"We are one step closer to the Dream Chaser spacecraft's first orbital flight. This comprehensive review approved moving the Dream Chaser program into the production phase so we can get Dream Chaser to market as a critical space station resupply spacecraft as soon as possible," said Fatih Ozmen, co-owner and CEO of SNC. "IR4 was a series of reviews, documentation, and data deliverables that are the culmination of many years of design work, analysis and development testing."

The Dream Chaser will perform at least six missions to provide cargo resupply, disposal and return services to the International Space Station under NASA's CRS-2 contract. The spacecraft delivers up to 5,500kg (~12,100lbs) of pressurized and unpressurized cargo and returns over 1,850 kg (~4,000lbs) of cargo with a gentle runway landing. The spacecraft also provides approximately 3,400kg (~7,400 lbs) of disposal capability each mission via the cargo module, which burns up in the atmosphere after separation from the Dream Chaser winged vehicle.

posted 03-21-2019 02:26 PM               

Dream Chaser Spacecraft Passes Another NASA Milestone

Ground and Flight Operations Enabled, First Flight in 2021

Sierra Nevada Corporation's (SNC) Dream Chaser spacecraft passed NASA's Integrated Review Milestone 5 (IR5), a key status check on SNC's performance of a variety of ground and flight operations.

Above: Dream Chaser engineer Liz Antognoli works on the payload mock-up demonstration. (SNC)

IR5 demonstrates that the Dream Chaser team is on track to operate the space vehicle in advance of the first mission to the International Space Station under the Commercial Resupply Services Contract 2 (CRS-2).

"This milestone is a great accomplishment for the team focused on operations development and demonstration. It shows we can operate the Dream Chaser from the ground, including getting critical science in and out of the vehicle," said John Curry, CRS-2 program director within SNC's Space Systems business area.

The review included development of the vehicle's flight computers and software, mission simulator and Mission Control Center. SNC also performed cargo demonstrations using high fidelity mock-ups of the vehicle and its cargo module, showing loading and unloading time and efficiency.

Milestone testing took place at SNC's Louisville, Colorado and NASA Kennedy Space Center facilities. Data was also used from the Dream Chaser 2017 free-flight test at Edwards Air Force Base, California, with the help of NASA's Armstrong Flight Research Center.

"Our Dream Chaser team continues to successfully execute milestones as we move closer to getting this spacecraft into space," said Fatih Ozmen, SNC's owner and CEO. "The orbital spacecraft is being built and this milestone demonstrates the vehicle keeps passing key reviews and is making great strides."

Dream Chaser continues to meet technical and scheduled milestones on its way to first flight in spring 2021. The Dream Chaser will conduct at least six orbiting flights to the space station, delivering equipment and supplies to advance space exploration and then safely return life science and other time-critical items on a conventional runway.

posted 04-08-2019 03:14 PM               

SNC's Dream Chaser spacecraft has a new look! We added more white tiles because, on-orbit, the black tiles absorb too much heat, while white tiles reflect heat generated by the sun. To learn more, watch this video.

posted 08-14-2019 01:45 PM               

Dream Chaser to launch on Vulcan Centaur for NASA cargo missions

A small commercial spaceplane contracted by NASA to bring cargo to and from the International Space Station now has its ride to orbit.

The Dream Chaser spacecraft, built and operated by Sierra Nevada Corporation (SNC), will lift off on resupply missions to the orbiting laboratory on United Launch Alliance (ULA) Vulcan Centaur rockets, officials with both companies announced Wednesday (Aug. 14). The uncrewed mini-space shuttle is expected to debut with the launch vehicle, now under development, in late 2021.

posted 10-15-2019 12:29 PM               

Dream Chaser Spacecraft Primary Structure Arrives in Colorado

Sierra Nevada Corporation (SNC) announces the arrival of the primary vehicle structure to the company's Colorado production facility, kicking off full assembly of the Dream Chaser® spacecraft ahead of its first mission for NASA in 2021. The structure is the largest piece of technology to make up Dream Chaser and the most advanced high-temperature composite spaceframe ever built.

"It's an extraordinary engineering and manufacturing accomplishment," said Eren Ozmen, chairwoman and president of SNC. "Our team has been looking forward to this day for a long time so that we can fully assemble America's spaceplane in preparation for its first mission for NASA."

The primary structure is a pressurized composite structure that will contain pressurized payloads heading to the International Space Station. The structure was manufactured by subcontractor Lockheed Martin and recently shipped from their Fort Worth, Texas facility to Louisville, Colorado, where Dream Chaser is being built and integrated by SNC.

"As the first building block of the spacecraft, it represents the first critical path hardware to be received in Colorado and launch of the assembly, integration and test (AI&T) phase of the program," said former NASA space shuttle commander, astronaut and retired USAF pilot Steve Lindsey, now senior vice president of strategy for SNC's Space Systems business area. "Dream Chaser is truly a state-of-art vehicle with cutting edge technology. This structure exemplifies its unique design and complexity."

Highlights about the design:

• Uses advanced composite 3D woven assembly methods and represents the most advanced high-temperature composite spaceframe ever built.

• Structure is about 30 feet long by 15 feet wide and approximately 6 feet high and weighs roughly 2,200 pounds.

• Materials include carbon fiber reinforced polymers (CFRPs), more traditionally referred to as "composites."

• The use of CFRP materials instead of aluminum and titanium alloys, lowers manufacturing costs for creating a unique, aerodynamically complex spaceframe design.

• Composites decrease the amount of thermal protection required compared to an aluminum primary structure.

• Advanced 3D woven construction minimize penetrations to the hot lower aeroshell.

posted 11-19-2019 10:08 AM               

SNC's "Shooting Star" Arrives at NASA's Kennedy Space Center

Sierra Nevada Corporation (SNC) delivered a test version of its Shooting Star cargo module to NASA's Kennedy Space Center for testing ahead of its planned launch with SNC's Dream Chaser spacecraft in 2021.

Shooting Star is a 15-foot attachment to Dream Chaser that will be used on NASA's Commercial Resupply Services 2 (CRS-2) contract to provide extra storage for payloads and to facilitate cargo disposal upon re-entry into Earth's atmosphere.

"With the addition of Shooting Star we add a capability for NASA, sending even more critical science, food and cargo to the International Space Station, and contributing to the important work the astronauts are doing every day," said Eren Ozmen, SNC's Chairwoman and President.

Dream Chaser will execute its first of at least six launches to the International Space Station in fall of 2021 under the CRS-2 contract. The cargo module will carry an additional 10,000 pounds of pressurized and unpressurized payloads to the International Space Station.

A key capability for Dream Chaser is performing cargo disposal upon re-entry. SNC's Shooting Star cargo modules will burn up in the earth's atmosphere, discarding unwanted material offloaded from the International Space Station.

"Shooting Star's ability to deliver additional cargo and provide a disposal service makes it and Dream Chaser extremely effective and versatile," said former NASA space shuttle commander and retired USAF pilot Steve Lindsey, now senior vice president of strategy for SNC's Space Systems business area.

For additional versatility, Shooting Star can support logistics services to other LEO destinations, including future commercial outposts, and for the lunar Gateway. SNC has also developed a concept for a free flying version that can act as a satellite to carry large payloads, with high-power capacity.

posted 04-21-2020 03:54 PM               

SNC's Dream Chaser Spaceplane Wings Arrive in Colorado

Sierra Nevada Corporation (SNC), the global aerospace and national security leader owned by Eren and Fatih Ozmen, uncrated both wings for its Dream Chaser spaceplane this month at the company's Louisville, Colorado production facility. The wings' arrival kicks off the much-anticipated integration phase of a beautiful and critical differentiator for Dream Chaser, the world's only spaceplane owned by a private company and under contract with NASA.

"The wings are here and now we truly have butterflies in anticipation of this integration phase for Dream Chaser," said SNC President Eren Ozmen. "Our spaceplane looks and functions unlike anything else in space – more technologically advanced but with all the heritage of the space shuttle program in its design. Dream Chaser's first flight will be a soaring moment for all of us."

The arrival kicks off the integration of the complex Wing Deployment System (WDS) as part of the continued assembly and integration of the vehicle. With their innovative folding design, the wings are stowed in the fairing ahead of launch. After the launch vehicle separates, the WDS deploys the wings and locks them into place. Dream Chaser's steeply angled wings function as stabilizers for the lift generated by the body of the vehicle.

"The wings for Dream Chaser presented an interesting design challenge," said Dream Chaser program director John Curry. "Not only must they survive in low-Earth orbit like a satellite, but they need to be operational in Earth's atmosphere, like an aircraft." Just like the structural body for Dream Chaser, the wings were manufactured by Lockheed Martin in Texas, a subcontractor to SNC, and are single bonded composite structures. This state-of-the-art technology saves weight without compromising strength and stiffness.

Dream Chaser is under contract with NASA for at least six cargo resupply and return service missions to the International Space Station under the Commercial Resupply Services 2 (CRS-2) contract. The Dream Chaser and attached Shooting Star transport vehicle can carry up to 12,000 pounds of supplies and other cargo, and returns delicate science to Earth with a gentle runway landing.

posted 05-01-2020 11:42 AM               

Dream Chaser Spaceplane First Orbital Vehicle New Name: Dream Chaser Tenacity

Sierra Nevada Corporation (SNC), the global aerospace and national security leader owned by Eren and Fatih Ozmen, marked National Space Day by announcing the name of its first orbital vehicle set to launch under contract with NASA: Dream Chaser Tenacity.

"Tenacity is in SNC's DNA," said SNC Chairwoman and President Eren Ozmen.

"Every critical moment in SNC's history of innovation has called for tenacity, in overcoming challenges in order to support and protect explorers and heroes. As the nation faces this current challenge, we want this vehicle to be a beacon of hope that American ingenuity – and tenacity – will bring brighter days ahead."

SNC's Dream Chaser spacecraft, known as "America's Spaceplane," is the world's only non-capsule, commercial spacecraft and is capable of a runway landing. Under a NASA contract, it will perform cargo delivery and disposal services to and from the International Space Station on at least six NASA missions.

"Dream Chaser is a story of grit and tenacity on the part of SNC's team," said John Curry, SNC's Program Director for Dream Chaser. "NASA's vision and ours for a next gen space shuttle with a gentle runway landing has weathered tough economic and budget resources and competing visions. The team and engineers working on Dream Chaser have believed in its superior design, knowing tenacity would lead to Dream Chaser flying in space and returning humans and science back to Earth safely."

NASA this week selected the Dynetics team, of which SNC is an integral part, to support its Artemis mission to the moon. SNC is leading development of the crew module for NASA's Human Landing System (HLS) program, which will ferry astronauts and supplies to and from the moon's surface. The program is designed to provide new science and material resources and leverage the moon as a proving ground for future Mars missions. NASA's goal is to land astronauts on the moon by 2024 and establish sustainable missions by 2028.

About Dream Chaser Spaceplane & Shooting Star Transport Vehicle

Owned and operated by SNC, the Dream Chaser spaceplane is a reusable, multi-mission space utility vehicle. It is capable of transportation services to and from low-Earth orbit and is the only commercial, lifting-body vehicle capable of a runway landing. The Dream Chaser Cargo System was selected by NASA to provide cargo delivery and disposal services to the International Space Station under the Commercial Resupply Services 2 (CRS-2) contract. All Dream Chaser CRS-2 cargo missions are planned to land at Kennedy Space Center's Shuttle Landing Facility. The Shooting Star cargo transport vehicle is a 15-foot attachment to Dream Chaser that provide extra storage for payloads, flexible mission options and facilitates cargo disposal upon re-entry into Earth's atmosphere.

posted 05-14-2020 05:05 PM               

SNC's Dream Chaser Spaceplane's Shooting Star Arrives in Colorado for Integration

Transport Vehicle Passed Critical Testing on Accelerated Timeline

Sierra Nevada Corporation (SNC), the global aerospace and national security leader owned by Eren and Fatih Ozmen, received its Shooting Star transport vehicle at the company's Colorado production facility, marking the beginning of a key integration phase. This phase includes installation of the SNC-built Passive Common Berthing Mechanism that will allow SNC's Dream Chaser Tenacity spaceplane, the first orbital vehicle in the company's Dream Chaser fleet, to berth to the International Space Station.

Above: SNC's Shooting Star Transport Vehicle for the Dream Chaser Spaceplane Arrives in Colorado.

Shooting Star is a 16-foot tall attachment to Dream Chaser that has capacity for more than 10,000 pounds of additional payloads to the International Space Station. It represents the first composite pressure vessel ever test-verified for visiting the International Space Station.

"This is a landmark milestone, not only for SNC, but for all of space exploration," said SNC owner and CEO, Fatih Ozmen. "This state-of-the-art, mission-ready structure is a testament to SNC's ability to deliver more capabilities to our customer without compromising on design."

Built primarily from advanced composite materials, Shooting Star has a high strength-to-weight ratio, allowing it to achieve a high payload capacity to the space station. The structure was manufactured by subcontractor Applied Composites to SNC's design requirements and recently shipped from its San Diego, California facility, to Louisville, Colorado, where it will be integrated by SNC.

"I am very proud of both Applied Composites and my team," said former NASA space shuttle commander and retired USAF pilot Steve Lindsey, now senior vice president of strategy for SNC's Space Systems business area. "Not only did they complete crucial testing for Shooting Star on an accelerated timeline ahead of Shooting Star's arrival in Louisville, but they innovated an entirely new approach to maintain the safety of both teams throughout the COVID-19 crisis."

Shooting Star will now undergo integration with its subsystems before being delivered to NASA's Plum Brook Station in Cleveland, Ohio for testing to ensure it can withstand both launch and space environments.

Dream Chaser is under contract with NASA for at least six cargo resupply and return service missions to the International Space Station under the Commercial Resupply Services 2 (CRS-2) contract. The Dream Chaser and attached Shooting Star transport vehicle can carry up to 12,000 pounds of supplies and other cargo, and returns delicate science to Earth with a gentle runway landing. Shooting Star also allows disposal services for the space station, and for these disposal missions, separates from Dream Chaser and disintegrates upon re-entry into Earth's atmosphere.

posted 05-04-2021 10:30 AM               

SNC's Dream Chaser Spaceplane Cleared for Florida Runway Landing

Sierra Nevada Corporation (SNC) has entered into a Use Agreement for Space Florida's Launch and Landing Facility (LLF) to land the Dream Chaser spaceplane in support of NASA's Commercial Resupply Services-2 (CRS-2) contract. Dream Chaser, America's Spaceplane, will service the International Space Station (ISS) under the CRS-2 contract in 2022.

"This is a monumental step for both Dream Chaser and the future of space travel," said SNC CEO Fatih Ozmen. "To have a commercial vehicle return from the International Space Station to a runway landing for the first time since NASA's space shuttle program ended a decade ago will be a historic achievement."

The Use Agreement makes SNC the first commercial user of Space Florida's FAA Re-entry Site Operator License and provides the runway and support facilities needed during testing and landing. It also takes SNC one step further in applying for its own FAA re-entry license, something needed ahead of the first Dream Chaser mission next year.

"The Dream Chaser spaceplane is hands-down the best way home," said Janet Kavandi, executive vice president of SNC's Space Systems business area. "A runway landing is the optimum solution for both humans and science."

Dream Chaser has the potential to land at any FAA licensed landing site that has a suitable 10,000-foot runway capable of handling a typical commercial jet. Its low-g entry and runway landing protects sensitive payloads and provides immediate access to payloads upon landing.

The LLF's proximity to Kennedy Space Center and formal recognition as a designated return site for rapid recovery of precious ISS cargo makes it the ideal location for the first orbital vehicle in SNC's Dream Chaser fleet, the Dream Chaser Tenacity spaceplane to make its debut landing.

SNC recently announced its Space Systems Group will transition to an independent commercial space company, Sierra Space.

posted 06-01-2023 09:22 PM               

Sierra Space's Dream Chaser® Spaceplane Comes to Life

Dream Chaser, the World's First Commercial Spaceplane, Powers Up Achieving a Major Step Forward in Realizing the Vision of Sustainable Commercial Space Travel

Sierra Space, a leading, pureplay commercial space company building the first end-to-end business and technology platform in space, is thrilled to announce the successful power up of its revolutionary Dream Chaser spaceplane.

Dream Chaser represents a groundbreaking leap in space transportation technology, designed to provide reliable and cost-effective access to space for a wide range of applications. With its unique lifting body design, the spaceplane combines the flexibility of an aircraft with the capabilities of a spacecraft, revolutionizing space travel.

The power-up of Dream Chaser signifies the activation of its integrated systems, showcasing the culmination of years of rigorous engineering, design, and testing. Sierra Space simulated the power that will be generated from Dream Chaser's solar arrays once on orbit. Test engineers plugged that power into Dream Chaser and began turning on systems. Sierra Space exercised flight computers, base processors and low-voltage distribution units.

"This is a milestone that points to the future and is a key moment in a long journey for Dream Chaser." said Tom Vice, CEO of Sierra Space. "With this significant achievement, our Dream Chaser spaceplane is poised to redefine commercial space travel, opening up new possibilities for scientific research, technological advancements, and economic opportunities in space."

The successful test was a key moment for the progress of space technology after years of design and development across Sierra Space, enabled by the accomplishments of many teams from system level design to final assembly and test.

Dream Chaser is a reusable, fully autonomous, orbital spaceplane designed to transport cargo to low-Earth orbit (LEO) destinations such as the International Space Station (ISS) and land at conventional runways. Measuring about one-quarter the size of the Space Shuttle, it features autonomous launch, flight, and landing capabilities with a smooth 1.5 low-G re-entry on compatible commercial runways worldwide.

posted 11-02-2023 09:46 PM               

Today Sierra Space Introduces Tenacity

Sierra Space today (Nov. 2) proudly revealed the fruit of years of passionate determination, countless breakthrough innovations and relentless commitment – the remarkable Dream Chaser spaceplane. The first vehicle is complete and will ship to NASA's Neil A. Armstrong Test Facility in Ohio for environmental testing in coming weeks.

Dream Chaser is a leap forward in space technology, heralded as the world's sole commercial runway-capable spaceplane. Supported by a substantial contract from NASA to resupply the International Space Station, Dream Chaser is poised to lead the way in democratizing access to space, forging a path towards shared space exploration and international cooperation.

"Today we have arrived at a profound milestone in both our company's journey and our industry's future – one that has been years in the making and is shaped by audacious dreaming and tenacious doing," said Sierra Space CEO Tom Vice.

"I am reminded of a comment made by Steve Jobs that every once in a while, a revolutionary product comes along that changes everything. I think Dream Chaser is that product. This breakthrough shifts paradigms and redefines space travel. The Dream Chaser is not just a product; it's a testament to human spirit, determination and the relentless pursuit of what lies beyond."

Sierra Space team members gathered to celebrate this milestone moment on October 30th, at the company's Louisville, CO, production facility.

Unlocking Opportunities for Space Access

The versatile Dream Chaser spaceplane fleet is meticulously designed to facilitate the transportation of cargo and, in the future, crew to low-Earth orbit (LEO). This multi-mission platform offers customization options to cater to the needs of both domestic and international customers, further enhancing its role in global space operations. Under NASA's Commercial Resupply Services 2 (CRS-2) contract, Dream Chaser has been selected to provide essential cargo delivery, return, and disposal services for the International Space Station.

Unparalleled Design and Precision

At the heart of Dream Chaser is an unparalleled design, meticulously crafted with precision. Every curve and contour of this remarkable vehicle is engineered for excellence, seamlessly merging engineering with a beautiful design, and enabling the seamless integration of space travel and hypersonic atmospheric speeds.

Pinnacle of Technological Advancement

Harnessing cutting-edge technology, Dream Chaser showcases its mettle by safely withstanding temperatures exceeding 3,000 degrees during re-entry, all while being cool to the touch mere minutes after landing. The incorporation of the most advanced autonomous flight system, ensuring a minimum 15-mission lifespan, marks a monumental leap forward in space transportation.

Safety as a Cornerstone

Safety remains at the core of the Dream Chaser's mission. Advanced safety mechanisms fortify the spaceplane, guaranteeing the integrity of the cargo – including sensitive scientific payloads – and the well-being of all those aboard the International Space Station who will interact with the new vehicle.

A Commitment to Sustainability

While we soar towards the heavens in pursuit of dreams, we remain resolutely anchored to our commitment to the planet. Dream Chaser is designed with sustainability as a foundational principle, working toward a better future for all. Years of dedication have resulted in the creation of a revolutionary new propulsion and oxidizer-fuel system, a testament to our pledge to a more eco-friendly and responsible approach to space travel.

Tenacity's Historic Mission

The inaugural Dream Chaser spaceplane, "Tenacity," is poised to embark on its initial seven cargo missions to and from the International Space Station, carrying essential supplies such as food, water and scientific experiments. One of Dream Chaser's groundbreaking features is its capability to safely return critical cargo to Earth at fewer than 1.5g's, ensuring the preservation of invaluable payloads. This innovative spaceplane offers unparalleled flexibility and can land at any compatible commercial runway worldwide, just like a narrow body commercial airliner.

Setting New Standards for Reusability and Adaptability

Dream Chaser's high reusability and adaptability set it apart, making it an optimal choice for a wide range of applications while ensuring rapid turnaround times to meet various LEO requirements. The launch for this extraordinary journey is schedule to occur from NASA's Kennedy Space Center. Sierra Space's launch provider, United Launch Alliance (ULA), will carry Dream Chaser into orbit on the second Vulcan Centaur rocket. Tenacity's maiden resupply mission will culminate with the vehicle's return, landing at the historic NASA Space Shuttle Landing Facility.

As we unveil the Dream Chaser, we invite you to join us on this extraordinary journey. Together, we embark on a new chapter in space transportation, redefining what's possible and shaping the future of human exploration. Sierra Space's Dream Chaser spaceplane symbolizes the dawn of a new era in space commercialization – The Orbital Age™, marked by heightened efficiency, extensive reusability and boundless opportunities. As "Tenacity" embarks on its maiden mission, it sets the stage for a brighter future of space transportation and cooperation, bringing humanity's dreams of space exploration one step closer to reality.

posted 03-08-2024 09:43 AM               

Sierra Space Dream Chaser Spaceplane Successfully Completes First Phase of Pre-Flight Testing

Sierra Space, a leading commercial space company and emerging defense tech prime building a platform in space to benefit and protect life on Earth, announced today the successful completion of the initial phase of environmental testing on the revolutionary Dream Chaser® spaceplane, Tenacity®, at NASA's Neil Armstrong Test Facility in Sandusky, Ohio.

Over the past month, the Sierra Space Dream Chaser and its cargo companion, Shooting Star™, underwent rigorous vibration testing while stacked in launch configuration inside the Mechanical Vibration Facility at the NASA complex. In readiness for launch from Kennedy Space Center, the tests exposed the vehicles to the intense conditions of launch vibrations using the world's most powerful spacecraft shaker table.

"We are coming out of years of development, years of hard work and years of resolving tough engineering challenges that come from revolutionary new ways of doing things," said Sierra Space CEO Tom Vice. "This phase of development illustrates how Dream Chaser and the Shooting Star cargo module will handle the mechanical rigors of launch. This is the year that we transition from development and enter orbital operations – it is the year that changes how we connect space and earth."

"Completion of vibration testing of the vehicles in the launch configuration is a huge milestone for Sierra Space and the Dream Chaser program," said Jake Ingram, Director of Programs for Dream Chaser DC-100. "We successfully applied the environment specified by the launch provider, validated primary structure modal responses and verified vehicle functionality before and after the vibration test sequence."

Key accomplishments in this first critical phase of pre-flight testing included: the completion of Sine Vibration Testing (in all three axes or directions), a Separation Shock Test that simulates the separation of the Dream Chaser from Shooting Star and a test that involved deploying the spaceplane's wings. These tests evaluated Dream Chaser's performance under the stresses of launch, operation in orbit and ability to communicate with the International Space Station (ISS).

'Joint Test #3', a critical phase in the testing process, represented an integrated assessment of the completed system in a flight-like configuration. After its ride to space atop United Launch Alliance's Vulcan Centaur rocket, Dream Chaser separates from the rocket fairing, deploys its wings from a folded position and flies semi-autonomously to the International Space Station. Joint Test #3 was a comprehensive evaluation focused on the software interface between the vehicle and the ISS to ensure the seamless functionality of the command and data handling.

Following these critical test phases, the Shooting Star cargo module was de-mated from Dream Chaser and transported from the Armstrong Test Facility's Space Environments Complex (SEC) to the nearby In-Space Propulsion (ISP) facility. Soon, Dream Chaser will be transported to the ISP facility to join the cargo module, where the two spacecraft will begin thermal vacuum testing, a crucial step in the journey towards the launchpad and another milestone in Sierra Space's mission to redefine the future of space commercialization.

posted 05-09-2024 09:28 AM               

Dream Chaser Tenacity Prepares for Transfer to Kennedy Space Center in Florida

Successful Pre-Flight Testing Completed at NASA's Neil Armstrong Test Facility

Sierra Space announced today (May 9) the successful completion of a rigorous environmental test suite on the revolutionary Dream Chaser spaceplane, Tenacity, at NASA's Neil Armstrong Test Facility in Sandusky, Ohio.

Above: The first in a fleet of spaceplanes, Dream Chaser Tenacity and its Shooting Star cargo companion are shown stacked inside a thermal vacuum test chamber at NASA’s Neil Armstrong Test Facility on April 26, 2024. (Joshua Teplitz/Sierra Space)

As the first Dream Chaser moves toward orbital operations, Sierra Space and NASA test team members are preparing the vehicle, along with its Shooting Star® cargo companion, for shipment to NASA's Kennedy Space Center in Florida for final testing and integration ahead of its inaugural launch later this year.

"Successful completion of an incredibly rigorous environmental testing campaign in close partnership with NASA is a significant milestone and puts Dream Chaser on track for operations later this year," said Sierra Space CEO, Tom Vice. "This is the year that we transition from rigorous research and development to regular orbital operations and – in doing so – transform the way we connect space and Earth."

Over the past several months, Dream Chaser and Shooting Star have undergone intense shock, vibration, and thermal vacuum testing at the sprawling Armstrong Test Facility. In December, the test teams conducted shock tests with Sierra Space's launch partner United Launch Alliance (ULA), using the flight separation system that will deploy the spacecraft from the upper stage of ULA's second Vulcan Centaur rocket.

The two vehicles were then stacked in launch configuration on the world's most powerful spacecraft shaker table inside the test center's Mechanical Vibration Facility. Sine vibration testing – conducted over a five-week period – simulated the intense conditions and environment of a launch on a Vulcan Centaur rocket. See video here. After vibe testing concluded, the teams conducted another shock test – this time with the flight separation system between Dream Chaser and Shooting Star – to simulate the dynamic environment during separation of the two vehicles prior to de-orbit and re-entry.

Next, the Sierra Space and NASA test teams transported the vehicles to the In-Space Propulsion Facility at Armstrong for thermal vacuum or "T-VAC" testing. Temperatures in space can range from the extremely cold – hundreds of degrees below freezing – to several hundred degrees Fahrenheit due to radiation from the sun. TVAC testing is a realistic thermal simulation of the flight environment and critical to ensuring mission success. For more than five weeks, Dream Chaser and Shooting Star were subjected to multiple cold-hot cycles in a vacuum environment, between -150F to +250F, with teams conducting functional tests at temperature plateaus to verify system performance. Sierra Space is releasing some stunning new imagery with this announcement, and you can download it here.

Dream Chaser and Shooting Star will soon be transported to NASA's Kennedy Space Center and staged inside the storied Space Systems Processing Facility (SSPF) – originally built to be the last stop for components of the International Space Station – for final integration and testing. The final environmental tests – acoustic testing and electromagnetic interference and compatibility testing – will be performed onsite inside the SSPF. Remaining work on the thermal protection system will also be completed there.

Dream Chaser Tenacity, the first in a fleet of spaceplanes, remains on track for a 2024 launch on the first of seven missions to resupply the International Space Station for NASA under a Commercial Resupply Services-2 (CRS-2) contract. A second spaceplane, named Reverence, is in production in Sierra Space's Louisville, Colo., factory.

posted 05-20-2024 03:46 PM               

Sierra Space Delivers Dream Chaser to Florida for Launch Preparation

Sierra Space's uncrewed spaceplane arrived at NASA's Kennedy Space Center in Florida ahead of its first flight to the International Space Station.

Above: Dream Chaser Tenacity, Sierra Space’s uncrewed cargo spaceplane, is processed inside the Space Systems Processing Facility (SSPF) at NASA’s Kennedy Space Center in Florida on Monday, May 20, 2024.

The Dream Chaser spaceplane, named Tenacity, arrived at Kennedy on May 18 inside a climate-controlled transportation container from NASA's Neil Armstrong Test Facility in Sandusky, Ohio, and joined its companion Shooting Star cargo module, which arrived on May 11.

Teams moved Dream Chaser Tenacity to the high bay inside the Space Systems Processing Facility, where it will undergo final testing and prelaunch processing ahead of its launch scheduled for later this year.

The spaceplane will lift off aboard a ULA (United Launch Alliance) Vulcan rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station and is set to deliver 7,800 pounds of cargo to the orbiting laboratory.

The remaining pre-flight activities at Kennedy include acoustic and electromagnetic interference and compatibility testing, completion of work on the spaceplane’s thermal protection system, and final payload integration.