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I don't actually know, but most engines are using gas from outside of the fuel source. I suppose perhaps they use a stored gas, given that they'd need it in spa
by mod 11y ago
I don't actually know, but most engines are using gas from outside of the fuel source. I suppose perhaps they use a stored gas, given that they'd need it in space, or perhaps couldn't "grab" enough for the huge amount of fuel they're using.
That said I'm aware of plenty of situations where similar things occur, I still find it very interesting.
- mikeash 11y agoRockets don't use anything from outside. Otherwise they wouldn't work in space too well, since it's a vacuum.
- TeMPOraL 11y agoRockets contains both oxidizer and fuel in liquid or solid forms, sometimes separated and sometimes even in one substance (monopropellants). Combustion products are gaseous, and gases tend to take more space than solids or liquids.
- sokoloff 11y agoOf course, if the combustion products didn't take up more space, the rocket would be remarkable in its ineffectiveness...
- WalterBright 11y agoThe heat of combustion will also cause more space to be taken up.
- biolime 11y agoCome on, it's not rocket science.
- bunderbunder 11y agoThe key difference between a rocket engine and other types of engine is that rocket engines only use chemicals that are stored onboard. If it needs gas from outside then by definition it's not really a rocket.