Front cover image for Advanced propfan engine technology (APET) definition study, single and counter-rotation gearbox/pitch change mechanism design

Advanced propfan engine technology (APET) definition study, single and counter-rotation gearbox/pitch change mechanism design


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