Rotary vs radial aircraft engines, the circular powerplants that changed early aviation
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MSNWorld of Warbirds
Rotary vs radial aircraft engines, the circular powerplants that changed early aviation
Part two of the Quest for Power series breaks down rotary and radial engines, why circular layouts solved cooling and reliability, and why they also came with nasty tradeoffs. From WWI rotaries to monster radials like the R-3350 and R-4360, this is how piston power hit its limits before the next leap forward.
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Mazda Wankel engine History
Wankel Engine: Design, History & Innovation
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Mazda’s R26B rotary engine helped the 787B make history at Le Mans in 1991, becoming the only rotary-powered car ever to win the endurance race. The 2.6L four-rotor engine produced over 700 horsepower at 9,000 rpm while weighing just 180 kg, creating one of the most iconic sounds in racing. Invented by Felix Wankel, the rotary design replaced pistons with triangular rotors spinning in oval chambers, achieving higher revs with less weight. Though later banned from competition, the 787B and its R2
0:23
Mazda’s R26B rotary engine helped the 787B make history at Le Mans in 1991, becoming the only rotary-powered car ever to win the endurance race. The 2.6L four-rotor engine produced over 700 horsepower at 9,000 rpm while weighing just 180 kg, creating one of the most iconic sounds in racing. Invented by Felix Wankel, the rotary design replaced pistons with triangular rotors spinning in oval chambers, achieving higher revs with less weight. Though later banned from competition, the 787B and its R2
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The engine with no pistons. In 1957, engineer Felix Wankel did the unthinkable. He built a working rotary engine that had no pistons at all. Instead of cylinders firing up and down, it used a spinning triangle inside an oval chamber to generate continuous power with fewer parts and smoother motion. Mazda was the only car maker crazy enough to mass produce it, and they turned it into the RX-7, a lightweight sports car with a tiny engine that revved like a motorcycle. At just 1.3 liters, the Wanke
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The engine with no pistons. In 1957, engineer Felix Wankel did the unthinkable. He built a working rotary engine that had no pistons at all. Instead of cylinders firing up and down, it used a spinning triangle inside an oval chamber to generate continuous power with fewer parts and smoother motion. Mazda was the only car maker crazy enough to mass produce it, and they turned it into the RX-7, a lightweight sports car with a tiny engine that revved like a motorcycle. At just 1.3 liters, the Wanke
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