Locating a circuit breaker in Apollo 11 CM

Space News
space history and artifacts articles

Messages
space history discussion forums

Sightings
worldwide astronaut appearances

Resources
selected space history documents

collectSPACE: Messages

Hardware & Flown Items

profile | register | preferences | faq | search

next newest topic | next oldest topic

Author	Topic: Locating a circuit breaker in Apollo 11 CM
rgarner Member Posts: 1193 From: Shepperton, United Kingdom Registered: Mar 2012	posted 07-24-2017 05:38 PM I've been searching for a while and found very little, but does anyone know how to find where in the Apollo 11 command module a circuit breaker would be? Serial number 101608306347.
rgarner Member Posts: 1193 From: Shepperton, United Kingdom Registered: Mar 2012	posted 04-24-2019 08:36 AM Are there any diagrams or blueprints which show the Apollo command module console circuit breakers and reference their serial numbers, use, etc.? I have an Apollo 11 flown breaker and I really want to track down where it was used. CIRCUIT BREAKER SINGLE POLE A/C L/N N52 1500-069-3 S/N 101608 306347 ME 454-0010-0006 This is a single-line type breaker as shown on Historic Space Systems (pictured below on the right). Having looked at the CSM displays and controls schematic, I can see that these types of breakers were used on: Panel 4, Panel 5 and Panel 8. Panel 4: Contains ac power switches and circuit breakers for the environmental control, telecommunications, and service propulsion subsystems. These circuit breakers were used for the suit compressors and water-glycol pumps of the environmental control subsystem. The circuit breakers are the push-pull reset type. Panel 5: Contains circuit breakers for instruments and the electrical power and environmental control subsystems. Panel 8: Contains circuit breakers for stabilization and control, reaction control, service propulsion, and other subsystems. From the CSM displays and controls schematic for Apollo 4 it it does have a key (also pictured below), but have so far been unable to see a correlation.
Jim Behling Member Posts: 1463 From: Cape Canaveral, FL Registered: Mar 2010	posted 04-24-2019 09:12 AM Drawings are not going to show where a specific serial number was installed. Drawings only show specific type of switch. Serial numbers would be on specific construction documents (which are not drawings or diagrams) for each vehicle. Those don't likely exist anymore and certainly wouldn't be on the web. A serial number for an item to be install is not known until the item is withdrawn from stock. Serial numbers are used to differentiate items that have the same part number. The construction documentation would say install this part number in this location per this drawing and record the serial number.
rgarner Member Posts: 1193 From: Shepperton, United Kingdom Registered: Mar 2012	posted 04-24-2019 10:45 AM That's good to know, thanks. I'm still going to hold out in the hope that someone has the construction documentation I need. I've been surprised before at what paperwork finds its way to the surface.

All times are CT (US)	next newest topic \| next oldest topic
Administrative Options: Close Topic \| Archive/Move \| Delete Topic
	Hop to:

Contact Us | The Source for Space History & Artifacts

Ultimate Bulletin Board 5.47a