Aircraft Physics

I have recently finished a flight simulator. It uses equations mostly - and all thats needed to input a new aircraft is to

  1. Duplicate the aircraft setup
  2. Exchange the mesh of the aircraft
  3. Research google for Weight, Wing Area, Max MPH
    4 Enter values into the properties

Play the game!

I know its really working because one time I inputted the weight but not the wing area, so the wing area was what the old (really light) plane had. The plane never took off and exploded off the runway at the end.

Lift equations people.

Sound interesting, but no file attached/linked.

Yes (it would be useful)
If the physics are good, then I can get onto Animation and sound.