Model CF6-6


First Hi-Bypass Turbofan

Building on technology that GE developed for military transport aircraft, the CF6-6 launched GE into the commercial engine business.


Engine Overview

In the late 60's, Lockheed and Douglas joined the commercial widebody competition with their tri-jet offerings designed to serve high density, medium-range routes. At this point in time GE had much of the TF39 R&D behind them and was ready to move forward with a new engine design, the CF6-6, modeled after the TF39 for use on the Douglas DC-10 and Lockheed L-1011.

After a fierce engine competition between Pratt & Whitney, Rolls Royce, and GE, both United Airlines and American Airlines in the spring of 1968 selected the 40,000 pound thrust GE CF6-6 to power their Douglas DC-10 Series 10 aircraft.

As a result, GE began its more than 40-year legacy in commercial aviation.

Physical Information

Fan/Compressor Stages: 1F/1LPC/16HPC

High-Pressure Turbine/Low-Pressure Turbine Stages: 2/5

Max Diameter (Inches): 105

Length (Inches): 188

Dry Weight (Lb.): 8,176 - 8,966

    Application Examples:
  • DC-10-10

Power Specifications

Specific Fuel Consumption at Maximum power: 0.35

Max. Power at Sea Level (Lb.): 41,500

Overall Pressure ratio at Maximum Power: 25 - 25.5

Bypass Ratio: 5.76 - 5.92/5.89