Propulsion

GE’s CF34
Engine Family

cf34 engine family

Setting the standard for reliability in regional and business aviation

With more than 7,500 CF34 engines powering regional aircraft, this engine family has logged more than 200 million flight hours and 157 million flight cycles. The CF34 has truly set the standard for performance, durability, and world-class reliability.

The CF34-3 turbofan

Proven performance and reliability over four decades

The CF34-3 is the sole-sourced engine on the reputable Challenger 650 business jet. It also powers the Bombardier CRJ200 regional airliner.

  • 8,729 lbs of thrust
  • 99.99% on time departure rating
  • 61 million cumulative cycles

In markets where reliability, durability, and time-on-wing matter, the CF34-3 consistently delivers. GE’s CF34-3 engine started out in military as the TF34, most famously on the A-10 in the early 1970s. Since its service entry in 1992 on the Challenger 601, the CF34-3 engine has earned an industry-leading reputation as one of the cleanest and most fuel-efficient engines in its class, while being synonymous with reliability.

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cf34-3 turbofan

GE’s CF34-8 turbofan

The workhorse of regional aviation

A larger version of the classic CF34-3 engine, the advanced CF34-8 offers:

  • A 14,500 lb thrust class turbofan propulsion system
  • 50% more thrust
  • Higher thrust to weight ratio
  • Lower specific fuel consumption
  • Reduced number of parts
  • Improved maintainability

The CF34-8 engine provides the level of reliability and performance that has earned the CF34 family of engines a global reputation for exceptional service.

CF34-8 turbofan
cf34-8c engine

CF34-8C

The CF34-8C is the most recent member of the CF34 engine family to be certified for Bombardier applications.

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cf34-8e engine

CF34-8E

The CF34-8E is an advanced 14,500 pound thrust class turbofan propulsion system that powers Embraer's 70-90 passenger airliners.

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The CF34-10 turbofan

Best-in-class reliability and performance

The CF34-10 engine represents a considerable capability increase over the other CF34 engine models.

  • Up to 20,000 pounds of thrust,
  • Low-risk with proven technology
  • Low operating costs through high reliability, ease of maintenance, and best-in-class fuel economy.

The CF34-10E powers both Embraer’s 190/195 and Lineage 1000 aircraft.
The CF34-10A powers COMAC ARJ21.

cf34-10 turbofan
cf34-10a engine

CF34-10A

GE’s CF34-10A is an advanced 18,000 pound thrust class turbofan, with nacelle/thrust reverser and engine-build up unit (EBU) components. GE provides the total CF34-10A propulsion system for the COMAC ARJ21.

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cf34-10e engine

CF34-10E

The CF34-10E is an advanced 20,000 pound thrust class turbofan propulsion system powering Embraer 190/195 and Lineage 1000 aircraft.

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CF34 Comparison

Physical Information
CF34-3
CF34-8C
CF34-8E
CF34-10A
CF34-10E
Fan/Compressor Stages
1/14
1/10
1/10
1/3/9
1/3/9
Low-Pressure Turbine / High-Pressure Turbine
4/2
4/2
4/2
4/1
4/1
Maximum Diameter (Inches)
49
52
53.3
57
57
Length (Inches)
103
128
121.2
90
145.5

Physical Information
CF34-3
CF34-8C
CF34-8E
CF34-10A
CF34-10E
Max Power at Sea Level
9,220
13,790
14,510
18,285
20,000
Overall Pressure Ratio at Max Power
21:1
28:1
28:5:1
29:1
29:1