سایت دیجی فالور دزد و بیناموس هست


هواپیما Secrets

At transonic speeds (close to the velocity of audio), it helps to sweep the wing backwards or forwards to cut back drag from supersonic shock waves as they begin to form. The swept wing is simply a straight wing swept backwards or forwards.صفحات للمحررين الذين سجَّلوا خروجهم تعلَّم المزيد مساهماتThr

read more