General Electric T64 Turboshaft

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About the GE T64 Turboshaft:

The General Electric T64 turboshaft engine was introduced in 1964 and pioneered a number of technical innovations that influenced future generations of GE engines. These technical innovations included corrosion resistant and high-temperature coatings, front-drive free turbines and film air-cooled turbine blades and nozzles. In October 1964, two T64 engines (T64-GE-3 with 2,850 shp each) powered the first flight of the YCH-53A, the prototype aircraft for the CH-53A Sea Stallion.

Though no longer in production, T64 engines of today incorporate new design and material technologies that have improved performance and reliability and have doubled the engine's original power rating.

Two T64-GE-413 turboshaft engines (3,925 shp each) power the CH-53D Sea Stallion, which has six main rotor blades. The newer CH-53E Super Stallion is a seven blade main rotor / four-blade canted tail rotor helicopter powered by three T64-GE-416A turboshaft engines (4,380 shp each). The CH-53D/E aircraft are capable of both land and ship-based transport of heavy equipment, supplies and personnel. One of the newest versions of the T64 engine, the T64-419, provides increased power (4,750 shp) for U.S. Navy MH-53E Sea Dragon helicopters.

The next generation CH-53, currently being developed by Sikorsky, will not be powered by the T64 engine. In 2004, it was determined that a new-build airframe would be a more cost-effective solution relative to upgrading existing CH-53 helicopters. The future CH-53K King Stallion will be powered by three General Electric T408-GE-400 (GE38-1B) turboshaft engines each rated at 7,500 shp. The T408 provides 58-71% more power than the T64 engines that power the CH-53E/MH-53E with 18% lower fuel consumption and 63% fewer parts. On August 4, 2011, GE Aviation delivered the first engine for Sikorsky's CH-53K Ground Test Vehicle.

Sources Used: U.S. Department of Defense (DoD) and General Electric Co.

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Engine Type:

Turboshaft Engine


CH-53D Sea Stallion (ret.)
CH-53E Super Stallion
MH-53E Sea Dragon


In Service


General Electric Co.

Price/Unit Cost:

$1.27-1.30 million

General Electric T64 Turboshaft Engine

By Joakim Kasper Oestergaard Balle /// Contact Forecast International

External Resources:

GE Aviation's T64 Page: Not Available

YouTube: General Electric T64 | YouTube Videos

Fact Sheet: General Electric T64


Engine Specifications: General Electric T64

Manufacturer: General Electric Co.
T64-GE-413: 3,925 shp
T64-GE-416A: 4,380 shp
T64-GE-419: 4,750 shp
T64-GE-423: 3,925 shp
Compressor: Axial flow
Compressor Stages: 14
Turbine Stages: 2 HP + 2 LP
Length: 79 in (2.01 m)
Diameter: 20 in (50.8 cm)
Dry Weight: Unknown
T64-GE-413: CH-53D Sea Stallion
T64-GE-416A: CH-53E Super Stallion
T64-GE-419: MH-53E Sea Dragon
Price/Unit Cost:
T64-GE-416A: $1.27 million
T64-GE-419: $1.30 million
Introduced: 1964
First Run: Unknown
First Flight: October 14, 1964

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