The ماشین Diaries
حمل بارهای فلهای بیشتر از ۳۲ کیلومتر میتواند مقرون به صرفه باشد.The traveling wing configuration was studied extensively within the 1930s and nineteen forties, notably by Jack Northrop and Cheston L. Eshelman in America, and Alexander Lippisch as well as the Horten brothers in Germany. Follo