1925 b.C.
Rockets
what do u think hell no
A propeller needs a fluid in which to operate, like water or air. In space, there is not enough air for a propeller to work. Space is almost a complete vacuum.
An azimuth thruster is an engine and ship's propeller in a pod which is azimuth adjustable.
that depends on the way the propellers work. for example, if the propeller on the right has some problem and works a little less powerfully, the shuttle moves towards the right side. but it is made sure that the propellers are working with equal power to maintain the shuttle in equilibrium. in the shuttles with single propeller, it mostly projects straight in the direction in which it is launched:)
in japan
1957
The Wright Brothers. === ===
He invented the steamboat propeller.
Orville and Wilbur wright invented the first airplane.the wright brothers.
Mary Macala in 1947 in Washington :) your welcome
Wallace R. Turnbull invented the variable-pitch propeller.
1) keyed propeller and 2) keyless propeller................... they have further classificaton 1.fixed pitch propeller 2.controllable pitch propeller 3.directional pitch propeller
How do you build a propeller
A propeller airplane is, simply put, any airplane which uses a propeller for propulsion.
A propeller is a rotating wing.
Since in order for the gun to be effective it needed to be behind the propeller, without the interrupter gear, bullets would have destroyed the propeller causing the plane to crash.