23 hours to solo in fixed wing. Before I soloed we had covered emergency procedures, flight by instrument reference (not much in a 1946 pa12), pilotage & dead reckoning, stalls, wheel and full stall landings. We didn't do spins until later. Then it took me about 8 hours to solo in helicopters, after I had my fixed wing PPL. At the time, it sort of mattered to me, though as I've gotten older I realize it matters not at all.
-- IFMU