Right, even a Cub with its flat-bottomed USA-35B will fly inverted, but in terms of angle-of-attack you would have no room for error, and the gravity-fed fuel s

Right, even a Cub with its flat-bottomed USA-35B will fly inverted, but in terms of angle-of-attack you would have no room for error, and the gravity-fed fuel system is going to cause you some problems too.