Pratt & Whitney T73

The Pratt & Whitney T73 (company designation JFTD12) is a turboshaft engine. Based on the JT12A, the T73 powered the Sikorsky CH-54 Tarhe and its civil counterpart Sikorsky S-64 Skycrane flying crane heavy-lift helicopters. Turboshaft versions for naval use are known as the FT12.

Variants

 * T73-P-1
 * Basic military model, rated at 4,500 horsepower (3,355 kW) takeoff power and 4,000 horsepower (2,982 kW) maximum continuous power


 * T73-P-700
 * Higher-power military model with improved internal components; rated at 4,800 horsepower (3,579 kW) takeoff power and 4,430 horsepower (3,303 kW) maximum continuous power


 * JFTD12A-3


 * JFTD12A-4A
 * Civilian equivalent of T73-P-1


 * JFTD12A-5A
 * Civilian equivalent of T73-P-700


 * FT12:Marine powerplant

Applications

 * Sikorsky CH-54 Tarhe (T73)
 * Sikorsky S-64 Skycrane/Erickson Air-Crane S-64 Skycrane (JTFD12)