Gary,
Then what about a turbo prop? It produces both, so how would its
work-producing potential be categorized?
Gregg
Dirk, it's a subtle distinction, but jet engines produce thrust, not
horsepower. Shaft engines (turboshaft, recips) produce horsepower, but you
have to attach them to a propeller to convert that power to thrust, which is
what airplanes (big or little) want. You can estimate "equivalent
horsepower" for a jet engine, but the concept isn't rigorous, or useful.
Now for something photographically interesting - do model turbojets produce
shock diamonds for us to photograph? Only if the exhaust is supersonic.
Gary Edwards (Professor Fairchild will be proud of me, I still remember it
from the first Aero class. . .)
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