Propeller Propulsion - NASA
https://www.grc.nasa.gov/WWW/k-12/airplane/propeller.html
WEBMay 13, 2021 · A C-130 transport plane is a turboprop aircraft. Its main thrust comes from the propellers, but the propellers are turned by turbine engines. The human-powered aircraft of the mid 80's were also propeller-powered, but the "engine" was provided by a human using a bicycle gearing device. Currently NASA is flying a solar-powered, electric engine ...
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