US 1950's ducted-fan VTOL aircraft
Designs D-2005 and D-2022 were two operational variants of a four ducted-fan VTOL aircraft designed in 1959 and having a layout comparable to the X-22. They were intended to be used as assault transports for thirty soldiers.
D-2022 formal proposal derivated from D-2005, USMC VTOL Assault Transport System Requirement/ US Army ASR 3-60 VTOL Transport System Study; forerunner of X-22 (1960) D-2064 military VTOL transport development of D-2022; joint design with Lockheed to meet TS-152 for a tri-service STOL
In 1959-60 Bell prepared ducted fan VTOL design studies for the U.S.Army and Marine Corps.The latter study being the D-2022 powered by four 20200hp. T55's and being able to carry 30 troops at VTOL gross weight of 28.500lb.
In 1961 the D-2064 design followed conceived jointly by Bell and Lockheed.
Please, DON'T USE the images without owner's permission. Thank you.