Model CF34-8


Built For Growth

The CF34-8 was built to offer airlines the opportunity to grow their fleet with new 70-90-passenger regional jets.


Engine Overview

The CF34-8 is an advanced 14,000 pound thrust class turbofan propulsion system designed for the new generation 70 and 90-passenger regional jets.

The CF34-8 takes full advantage of the experience gained on the CF34-3 engine's 27 million flight hours of airline operation.

It incorporates all the service-proven reliability, environmental and operational characteristics that have earned the CF34 engine family an excellent global reputation with airline operators for exceptional performance.

The CF34-8 engine has been in service for 10 years, and over 2,000 CF34-8 engines are in service on Bombardier's CRJ700 (CF34-8C1 & -8C5B1) and CRJ900 (CF34-8C5) aircraft and Embraer's 170/175 (CF34-8E5) aircraft. The CF34-8 has accumulated more than 24 million flight-hours and 18 million cycles. The engine's design has evolved over the decade with enhancements that have lowered part count, improved durability and have the ability to reduce maintenance costs.

Physical Information

Fan/Compressor Stages: 1/10

High-Pressure Turbine/Low-Pressure Turbine Stages: 2/4

Max Diameter (Inches): 52 - 53.4

Length (Inches): 121.2 - 128

Dry Weight (Lb.): 2,408 - 2,600

    Application Examples:
  • Bombardier CRJ700/900
  • Bombardier Challenger 870/890
  • EMBRAER 170/175

Power Specifications

Specific Fuel Consumption at Maximum Cruise: 0.68

Max. Power at Sea Level (Lb.): 13,790 - 14,510

Overall Pressure ratio at Maximum Power: 28:1 - 28.5:1

Bypass Ratio: 5:1