Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
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The Saturn F-1 engine combined kerosene with oxygen;
the chemical combustion forced gas out of the rocket
nozzle with a speed of roughly
exhaust speed u = 2600 m/s
Q: How many kg of fuel did the F-1 engine
burn each second?
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The Saturn F-1 combined a relatively small engine
with gigantic fuel tanks. How big were the tanks?
Well, compare the mass of the system when the
tanks were full to the mass when the tanks were empty:
mass (full of fuel) = 436,000 kg
mass (out of fuel) = 26,600 kg
Q: Suppose a Saturn F-1 engine in deep space
with a full set of fuel tanks was just
floating, motionless. If the engine
is ignited, and all the fuel processed,
how fast would the empty engine be
moving afterward?
This is called the delta-vee
of a rocket engine.
Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.