could a fan be used in place of a propeller on small aircraft?

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boarder_dude572

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I'm talking about a very small aircraft, in the weigh range of a light glider. Could an industrial sized fan be put on the front and provide significant thrust?
 
If you remember physics class, MV = MV. So the

mass of air X the speed of air being pushed = mass of the airplane X the speed of the airplane.

So since air is very light, you have to push a lot of air and in very high speed. It is very difficult to find FAN that can blow that much air.

===

I used to take flight lesson. When a plane is ready to take off, I could be 10 cars away, and I can feel a huge wind blow (almost enough to off balance me as I'm walking). That is a lot of moving air.


Good Luck...
 
I wouldn't depend on it. I'm sure propellers are built to considerably tougher specifications.
 
If you remember physics class, MV = MV. So the

mass of air X the speed of air being pushed = mass of the airplane X the speed of the airplane.

So since air is very light, you have to push a lot of air and in very high speed. It is very difficult to find FAN that can blow that much air.

===

I used to take flight lesson. When a plane is ready to take off, I could be 10 cars away, and I can feel a huge wind blow (almost enough to off balance me as I'm walking). That is a lot of moving air.


Good Luck...
 
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