General Electric T64

General Electric T64

is a free-turbine turboshaft engine that was developed for use on helicopters. The engine ablity is a high pressure ratio, yielding low specific fuel consumption. In 1964 the engine was introduced by GE.


Type : Turboshaft
National origin : United States
Manufacturer : GE Aviation
Major applications : AH-56 Cheyenne, Alenia G.222, CH-53 Sea Stallion, CH-53E Super Stallion

General Electric T64 Versions

Helicopter versions:

  • T64-GE-1 – 3,080 shp (2,300 kW)
  • T64-GE-6 – 2,850 shp (2,125 kW)
  • T64-GE-7 – 3,925 shp (2,930 kW)
  • T64-GE-16 – 3,485 shp (2,600 kW)
  • T64-GE-412 – 3,695 shp (2,755 kW)
  • T64-GE-413 – 3,925 shp (2,930 kW)
  • T64-GE-415 – 4,380 shp (3,265 kW)
  • T64-GE-416 – 4,380 shp (3,266 kW)
  • T64-GE-419 – 4,750 shp (3,543 kW)
  • T64-GE-423 – 3,925 shp (2,927 kW)

Turboprop versions:

  • T64-GE-10 – 2,970 shp (2,214 kW)
  • CT64-820-1 – 2,850 shp (2,125 kW)
  • CT64-820-3/-4 – 3130 shp (2,400 kW)
  • T64/P4D – 3400 shp (2,600 kW)

General Electric T64 Specifications

General characteristics

  • Type: Turboshaft
  • Length: 79 in (201 cm)
  • Diameter: 20 in (51 cm)
  • Dry weight: 720 lbf (327 kg)

Components

  • Compressor: Axial, 14 stage high pressure compressor
  • Combustors: Annular
  • Turbine: Axial, 2 stage high pressure turbine, 2 stage low pressure turbine

Performance

  • Maximum power output: 4,330 shp
  • Overall pressure ratio: 14.9:1
  • Specific fuel consumption: 0.48 lb/lbf-hr
  • Power-to-weight ratio:
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