France’s SIPA S.200 Minijet, an early civilian light jet, showed promise in the 1950s but…
France’s Bréguet 1100 twin-engine fighter showed promise but was canceled in 1957 due to engine…
Japan’s Kawasaki Ki-78 aimed to break speed records in WWII but fell short due to…
France’s SE-1010 was a high-altitude photo-survey aircraft that showed promise but was cancelled after a…
Macchi MB.323 lost Italy’s trainer competition despite strong performance, paving the way for the later…
PZL-230 Skorpion was a Polish STOL ground-attack aircraft concept with advanced features, but it was…
Convair Model 48 Charger was a STOL light attack aircraft designed for close support, but…
Northrop X-21A tested laminar flow control to reduce drag and improve efficiency, proving the concept…
Northrop YF-17 lost the US Air Force’s Lightweight Fighter contest but evolved into the F/A-18…
Hughes XV-9 tested hot-cycle propulsion with tip-jet rotors in the 1960s, proving the concept but…
Sign in to your account