Robert Pearlman
Editor Posts: 12300
From: Houston, TX
Registered: Nov 1999
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posted March 03, 2008 09:01 AM
   
quote:
Originally posted by NAAmodel#240:
Are freeze related Hydrazine expansion issues due to a lack of electricity to power heaters?
Yes, as Gen. Cartwright explained during the pre-intercept media briefing: quote:
To take it just a little bit further, hydrazine, in this case -- normal case is that when it's used as rocket fuel, it's in a gaseous state. We bring it up to a liquid state with heaters. This has had no benefit of heaters because there's no power on the bird. So this is a frozen state of hydrazine, which leaves for us another unknown: how much of it would melt on the reentry, therefore would be in either a liquid or gaseous phase.
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