At the very crux of engineering is the desire to problem-solve, optimize, and squeeze out every bit of efficiency possible from the system being built. Aircraft design and aeronautical engineering ...

The An-70 transport is a high-wing aircraft powered by four 14,000-shp ZMKB Progress D-27 propfan engines with six-blade counter-rotating propellers. Maximum payload is 103,615 lb. Two An-70 ...

The An-70 transport is a high-wing military transport powered by four 14,000-shp ZMKB Progress D-27 “propfan” engines with six-blade counter-rotating propellers. Maximum payload is 103,615 lb. Two ...