It seems something like "linear aerodynamics" should be manageable.
Lift = lift_constantangle_of_attackvelocitywing_area, in direction perpendicular to velocity
Drag = drag_constantangle_of_attackvelocitywing_area, acts in direction parallel to velocity.

Lift_constant and drag_constant should be functions of angle of attack, for example if Lift_constant goes to zero at some maximum angle of attack it will represent stalling of the wing.

This is somewhat similar to a magnet whose force depends on velocity of the object, instead of the distance to another object...I guess I need to peek at the magnet code.

Kirk

Thanks for the nice tutorial. I think I discovered (the hard way) the difference between making a component of a shape and making a group before adding a hinge or other joint. i.e. groups work with hinges and components do not.
If I have it right, you might add that hint to the tutorial.
Thanks again, it got me going....

On another topic, has anyone designed logic gates in sketchyphysics? I am thinking of a mechanical digital computer....with balls for bits and some levers for the AND or XOR gates....did a quick google but nothing popped up right away...