OK, in this case, rocket noise.  
This is a test-firing of the gas generator from a F-1 engine:
The gas generator ran a turbine on the F-1.  That turbine powered the fuel pumps that fed kerosene and liquid oxygen to the combustion chamber.
The gas generator produced more power than the engine of a F-16 fighter.
Friday funnies — Halloween edition
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2 comments:
Yep, a VERY small percentage relative to the actual F-1 but STILL noisy as hell! :-)
Was this test at MSFC/Redstone?
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