Recent content by Biggles 1984

In contrast. If you can agree that the backwash from engines is greater than the downwash from the wings. Then it follows that the thrust form the engines is greater that the lift produced by the wings.

That is the argument that I heard from engineers as well, and it's a logical fallacy. It's not science.

Are you saying that the wing produce almost 2.5x as much upward force than the maximum engine thrust (which is used to push the airplane forwards and up)? That's not possible because it breaches the physics principles of conservation of energy, momentum and force. Wings cannot create a force...

but then where does the lift come from?

I'm saying that the lift produced by the wings cannot exceed engine thrust.

So how can lift be 10x the engine thrust? Where does the extra lift to fly come ?

Engineers are confronted with two apparently true but contradictory statements for airplanes in flight: a) Lift must equal the weight of the airplane (Lift = Weight), based on Newtons 2nd Law of motion (i.e. Force = ma); where gravity is used to calculate weight (i.e. Weight = mass x...