Russia’s SR-10 forward-swept-wing jet trainer showed strong performance but lost funding and competition, ending as…
The Carmier-Arnoux Simplex was a tailless racing aircraft that showed promise but was lost in…
The Langley Twin was a WWII-era wooden aircraft designed to save metal, but resin shortages…
Australia’s CAC Woomera was a twin-engine WWII bomber with strong performance, but crashes, design issues,…
Boeing’s Model 908-909 competed in the US Air Force Lightweight Fighter program but lost to…
Saab 210 Lilldraken tested the double-delta wing, leading to the Mach 2 Saab 35 Draken…
The Curtiss XF15C mixed-propulsion fighter combined piston and jet engines but was cancelled as pure…
The Kawasaki Ki-64 twin-engine fighter used a unique tandem engine and vapor cooling system but…
New Zealand’s unusual PL-11 Airtruck agricultural aircraft showed promise but failed amid crashes, delays and…
The Saunders-Roe SR.45 Princess was the largest all-metal flying boat ever built, but jets and…
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