Pratt & Whitney T73

Last updated
T73/JFTD12
JFTD12 engine on an Aircrane.JPG
JFTD12-4A mounted on an Erickson S-64E Aircrane
Type Turboshaft
National originUnited States
Manufacturer Pratt & Whitney
Major applications Sikorsky CH-54 Tarhe
Sikorsky S-64 Skycrane
Number built352 [1]
Developed from Pratt & Whitney JT12

The Pratt & Whitney T73 (company designation JFTD12) is a turboshaft engine. [2] 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. [3] Turboshaft versions for naval use are known as the FT12, and have been used on the Iroquois-class destroyer.

Contents

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 [4]
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 [4]
JFTD12A-3
JFTD12A-4A
Civilian equivalent of T73-P-1 [4]
JFTD12A-5A
Civilian equivalent of T73-P-700 [4]
FT12
Marine powerplant

Applications

Specifications (T73-P-1)

T73s on a Sikorsky CH-54 Tarhe Ch-54a 005 jan64 army Engine JFTD12.jpg
T73s on a Sikorsky CH-54 Tarhe

Data from FAA Type Certificate E15EA

General characteristics

Components

Performance

See also

Related development

Comparable engines

Related lists

References

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