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Fire On The Space Shuttle?  
User currently offlineliedetectors From United States of America, joined Jul 2005, 360 posts, RR: 0
Posted (4 years 9 months 3 days 5 hours ago) and read 4976 times:

Yea so I just watched the space shuttle do a night landing tonight on tv. During the footage of the roll out, I couldnt help but notice that there was some flames pulsing out of the base of the tail. Does anyone know what that is? Some sort of reverse thrusters? Is it normal? Could it just be extra hydrazine burning off?


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4 replies: All unread, jump to last
 
User currently offlineweb500sjc From United States of America, joined Sep 2009, 749 posts, RR: 0
Reply 1, posted (4 years 9 months 3 days 4 hours ago) and read 4922 times:
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the drag chute deploying? i'd imagine there are some pyro-yechnics involved with that so that could be your flash, as for fire, you would know by now if there was a fire.


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User currently offlineMir From United States of America, joined Jan 2004, 21791 posts, RR: 55
Reply 2, posted (4 years 9 months 3 days 3 hours ago) and read 4910 times:

Quoting liedetectors (Thread starter):
Is it normal? Could it just be extra hydrazine burning off?

It's hydrazine from the APUs burning off, and while this was one of the more vibrant displays of it that I've seen, it is normal.

-Mir



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User currently offlineOroka From Canada, joined Dec 2006, 913 posts, RR: 0
Reply 3, posted (4 years 9 months 6 hours ago) and read 4317 times:

Quoting Mir (Reply 2):
It's hydrazine from the APUs burning off, and while this was one of the more vibrant displays of it that I've seen, it is normal.

I will second that one.


User currently offlineCURLYHEADBOY From Italy, joined Feb 2005, 940 posts, RR: 2
Reply 4, posted (4 years 8 months 4 weeks 1 day 21 hours ago) and read 4232 times:

Quoting Oroka (Reply 3):
Quoting Mir (Reply 2):
It's hydrazine from the APUs burning off, and while this was one of the more vibrant displays of it that I've seen, it is normal.

I will second that one

Yep, that's what it is. In the daylight you can't see the flames but still can hear the intermittent puffing sound of the exhaust.  



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