UH-1H TURBOSHAFT ENGİNE

Abdullah ÇELİKM.Sc.Mech. Engineer

Compression Ratio: 7.2:1 at 25,600 rpm

The manufacturer of the T53 series engines, estimates that the T53 series engine has operated safely and reliably for over 70,000,000 flight hours.

At the very front of the engine is the compact output reduction gearbox, which drives the load as well as the N2 governor, the N2 tach generator, and a torquemeter

Air is bled from the fourth and fifth compressor stages to improve acceleration, as well as to provide anti-icing and customer air. The variable inlet guide vanes also provide stall margin control to improve acceleration.

The high pressure gas is expanded through a two stage axial high pressure turbine, to drive the compressor and the accessory gearbox, and then the gas is expanded through a two stage axial free power turbine, which drives the output reduction gearbox through a coaxial shaft, which rides through the center of the high pressure shaft towards the front of the engine

Rated Torque Output at full power: 1,200 lb/ft @ 6,640 rpm

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