forthose who actually fly models : I have a UMX300 (a tiny one ounce 6channel radio electric model)
This model has flat foam wing with huge ailerons. I programmed the tx (DX8) to provide
A- flaps for landing /take off (flaps are actually the ailerons)
B flaps coupled with elevators (upflap with down el /down flap with up el.)
Now I can watch the SPEED differences required to stay aloft when the wing is either FLAT/ Symmetrical or cambered.
There is a huge difference in speed and lift.-with only a few degrees of camber
However changing power, creates instant climb or descent. These silly little models show instantly the differences in wing configuration - power requirements etc. and all in a 30x50 ft room!