??????? ????? ???? ???? ??? ???? ?????? ?? ?????? ???? ????? ?? ???????? ????????? ????? ?????? ????? ?????? ????? ??????? ???????? ?????? ?? ?????? ?? ???????.If the offered motor power greater through the twenties and 30s, wings can be produced major and robust plenty of that bracing wasn't required anymore. This type of unbraced wing is named a