Front cover image for Advanced prop-fan engine technology (APET) single- and counter rotation gearbox/pitch change mechanism : final report

Advanced prop-fan engine technology (APET) single- and counter rotation gearbox/pitch change mechanism : final report


Microform, English, [1985]
[National Aeronautics and Space Administration] ; [For sale by the National Technical Information Service], [Washington, DC], [Springfield, VA], [1985]