In short, you start with an extremely high engine shaft speed. This drives a reduction gearbox operating at around a 15 to 23:1 ratio, which determines the output shaft's speed. The output shaft ...

Today's passenger aircraft house some of the most cutting-edge innovations in engine technology, and that list most certainly includes turboprop engines. In layman's terms, a turboprop is a jet ...

[ZeroBacklash] created a little strain wave gearbox (harmonic drive) for when you want to trade speed for torque on ... and you get a high-reduction gearbox with fewer parts and reduced volume ...