??????? ????? ???? ???? ??? ???? ?????? ?? ?????? ???? ????? ?? ???????? ????????? ????? ?????? ????? ?????? ????? ??????? ???????? ?????? ?? ?????? ?? ???????.?????????® ?????? ????? ????? ?? ?????? ?????????? ????? ????????? ???.Jet plane are propelled by jet engines, which can be used since the aerodynamic limitations of propellers tend not to