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…
The XB-41 Liberator tried to turn a B-24 bomber into a heavily armed escort gunship,…
The story of the RF-4X Phantom “Peace Jack” project, an attempt to build a Mach-3…
Messerschmitt’s HA-300 supersonic fighter moved from Spain to Egypt but was canceled in 1969 amid…
France’s Farman F.224 airliner began as a luxury transport but was repurposed for troops and…
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