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I
suppose in a technical sense this contraption is a turboprop insofar as
it uses a jet engine (or more correctly a rocket engine) to power a standard
propeller. There are a couple problems with the claims made in this Turb-O-Prop
advertisement that appeared in the December 1954 edition of Air Trails.
First, since the propulsion unit looks to be about the size of a Jetex 50
motor, there is no way it can be "Comparable to '1/2-A' conventional engines,"
unless they mean a 1/2-A at idle power. Second, the claim of "Absolutely
no torque - but super-powered jetlike thrust," cannot be correct unless
the propeller and jet engine rotate in opposite directions and are
equal in torque. As Mr. Newton pointed out, for every action there is and
equal and opposite reaction. It might be vibration-free, but it ain't torque-free.
 Turb-o-Prop
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Posted March 16, 2013
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