Saturday, January 29, 2011

C-130 turboprop maintenance

Ground crew doing maintenance on one of C-130’s four turboprop engines … basically jet engine driven propellers. The prop assemblies are very complex with variable pitch blades. These jet engines always run at a constant RPM (around %100 in cockpit gauge). Throttle increase at constant RPM would produce greater torque which was transferred to the prop where the blades would move in synch to take bigger bite of air allowing acceleration and/or climb. Nha Trang, Vietnam 1972.

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