In 1954, General Electric began work on an larger T58. The resulting T64 flew as a turboprop in a Caribou in 1960 and as a turboshaft in a CH-53 in 1964. The T64 is still in production today.

models

• T64-GE-416: 4,380 hp (3266 kW)

specifications

• Turboshaft Compressor: 14-stage
• Turbine: 2-stage LP/2-stage HP
• Pressure ratio: 14.8
   

used by

• Sikorsky CH-53 Stallion