Tupolev Tu-110 was a four-engine Soviet jetliner developed from the Tu-104 but canceled in 1958…
Boeing XB-15, a 1930s “super bomber,” set payload records but was canceled due to low…
Cierva W.9 tested a tail-rotorless helicopter concept during WWII, pioneering early NOTAR ideas before its…
Bristol XLRQ aimed to give US Marines amphibious glider capability in WWII, but shifting doctrine…
Bernard H.V.220 aimed to compete in the 1931 Schneider Trophy, but engine failures and delays…
Dassault Mirage III V explored Mach 2 vertical flight, but complexity, crashes and rising costs…
ATG Javelin MK-10 aimed to bring fighter-like performance to personal jets, but funding failure and…
Yak-36 was the Soviet Union’s first VTOL jet, proving vertical flight concepts but cancelled due…
Ryan XV-5 Vertifan tested ducted-fan VTOL flight in the 1960s, proving key concepts but failing…
Russia’s SR-10 forward-swept-wing jet trainer showed strong performance but lost funding and competition, ending as…
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