Crazy Cesna,
Congratulations, your findings exactly tally with my own. It is, I would imagine, true of all Cessna 150/152 aircraft.
The reason the ailerons do work at low speed and even into the stall lies in the FAR 23 design requirements which require the ailerons to function normally, if sloppily, in that condition. The Cessna designer incorporated a significant degree of washout at the tips which reduces the angle of incidence compared with the rest of the wing. Thus the outer wing is at a lower angle of attack and stalls later than the rest. This means the ailerons remain effective in the normal sense into the stall and spin modes.
Enjoy your flying and remember, height is insurance..............!!!!!!!!!!!!!!
Cheers,
Trapper 69
