It may seem like a horse-drawn Zeppelin, but Astro Mechanica seems to be all-in on its revolutionary hybrid-electric ...
If you look at aircraft from the Second World War or earlier, you'll notice that many of them have engines with large frontal areas and cylinders arranged about the propeller crankshaft. This a radial ...
National Air and Space Museum. Archives Division. National Air and Space Museum Technical Reference Files: Propulsion National Air and Space Museum Technical Reference Files: Propulsion / Series B: ...
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