Fuel savings 60 gal/hr. Approx. 30%
Higher useful load
Weight Saving 50 Lbs from the standard UH-1H T53-13 installation
Less fuel needed for specific operations
No aux tank needed – more useful load
No bleed air requirements with the electric Oil Cooler Blower installation
15,000 ft. Auto Re-lite certification
As the engine increases in altitude, it’s “thermal power” available drops due to air density, because the PT6 is of a newer design era, its “lapse rate” (power fall-off due to altitude) is better (less) than that of the T53
Available Power (not at its max for the Engine)
The engine series is installed in the AB 609 Tiltrotor and rated at 1,938 horsepower take-off and 2,130 Horsepower OEI. The 609 engine is essentially the same as the 67C & D except it has the ability to continuously operate vertically.
The additional “reserve” power available helps with reducing the Altitude Performance of the engine
Electronic Collective Power Anticipator, electronic replacement for the droop compensator system, very responsive
The advanced factory-new engine is equipped with an Electronic Engine Control (EEC) for precise and fast rotor governing with a hydro-mechanical back-up feature that provides for safe engine control and ease of helicopter operation.