In rec.aviation.piloting Le Chaud Lapin wrote:
On Jun 19, 7:45?pm, wrote:

Aircraft will look like they do now until some huge new technology
gets invented such as anti-gravity or the impulse engines of Star
Trek, in which case they will probably look like Star Trek shuttle
craft.

Are you 100% certain of this?

An airplanes flys because it is moving through the air.

The only existing way to cause an airplane to move through the air
and continue to move through the air is to accelerate gas.

There are a limited number of existing ways to accelerate gas:

1) Rockets: Not practical for aircraft

2) Propellors: Currently widely used.

3) Turbines: Not practical for GA aircraft, widely used on bigger aircraft

4) Ion wind: Not practical for anything

What turns the propellor is irrelevant.



--
Jim Pennino

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