Shuttle Engines during take off
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sparks do not ignite the engine. These "sparklers" simply burn off excess accumulated hydrogen gas before the engines are started to avoid any excess hydrogen gas ignition. The main engines are ignited internally by the Space Shuttle's onboard computers.
4 years ago 8
All Comments (25)
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@TriStateChaser Precisely. If they didn't have internal ignitors then how would they ignite in space?
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Makes me wish that airplanes had engines that powerful. Imagine a fighter jet with just one of the SSMEs.
I know it's impossible because they consume so much fuel, but it would be amazing.
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that's not take off pal, that's lift off, we use ''take off' on rotation :)
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its cool to know that all that "smoke" is actually water vapor...
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woow beautiful
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@HNDNV07 You are correct about the LOX at the top of the ET. It vents through the beanie cap, which is removed and swung away just before launch. The LH2 boil-off is taken away from the pad through the umbilical masts each side of the Orbiter's tail. At a safe distance from the pad, the LH2 is burned. The flame is visible during night launches. No LH2 boil-off is allowed near the pad. The sparklers at T-10 seconds are to burn off any hydrogen that leaks from the engine bells before ignition.
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The APU's can be heard (and their exhaust flame readily seen) in the STS-130 night landing video.
watch?v=e2dJiFv-R28#t=1m50s
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0:26 - my favorite part.. when the halos drop down.
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i love how the color of the exhaust changes from a bright orange to almost a white color
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Pilot controlled-ignition sequence and fuel into the engine deserts, or is driven off the ramp? Also controls the engine power and the SRB?
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Thanks for the info! The video description has been updated.
sdub999 4 years ago