How is the Falcon 9 rocket able to start its engines several times?

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Offline thedoc

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Roy Bovenistier  asked the Naked Scientists:
Hello, here is a question for the naked astronomers.

How come the Falcon 9 rocket is able to start its engines several times?
Maybe because it doesn't use solid rocketboosters?


What do you think?
« Last Edit: 31/07/2012 20:30:02 by _system »


Offline Soul Surfer

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it depends on the fuel lots of small rocket thrusters use spontaneously combustible fuels like nitric acid and hydrazine.  (nasty stuff) others just use a spark plug or something similar
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