Once the offered motor power improved in the course of the twenties and 30s and bracing was now not needed, the unbraced or cantilever monoplane turned the commonest kind of powered style.??????? ???? ?? ?????????. ??? ???? ?? ??? ???? ???? ??? ??? ?? ????? ??????? ?? ??????? ???? ????? ???????. ??? ?? ????? ?? ??? ????? ??? ??????? ? ?????? ?????