CF34-3B & -3B1 Engines Receive FAA Certification
LE BOURGET - GE Aircraft Engines' CF34-3B and -3B1 engines received U.S. Federal Aviation Administration (FAA) certification in a ceremony at GE's Lynn, Massachusetts, facility earlier this month.
The CF34-3B engine will power the new Canadair Challenger 604 corporate jet; the -3B1 model, the Canadair Regional Jet.
Lloyd Thompson, general manager of GE's Small Commercial Turbofan Department, said, "FAA certification of the -3B/-3B1 was achieved right on time, following the 26-month development schedule we set when the program was launched in 1993. Performance has been outstanding, with the engine meeting or exceeding all requirements throughout the comprehensive development program which, to date, has included more than 800 hours of component, engine, and flight testing."
The CF34-3B/-3B1 engines provide a 3 percent improvement in cruise specific fuel consumption (SFC), contributing to the 4,000 nautical mile range of the Challenger 604. Other operational improvements include a faster rate of climb and shorter hot/high field takeoff performance.
GE achieved the CF34-3B/-3B1's improvements through higher compressor air flow and efficiency with a redesigned stage 1 blisk. Further improvements result from improved clearance control and higher efficiency from the high pressure and low pressure turbines, and a modest turbine temperature and fan speed increase, both of which remain within current certified limits. The -3B/-3B1 models retain all the maintainability and long-life features of the CF34-3A1 that currently powers the Challenger 601 and the Canadair Regional Jet.
"The successful development of the CF34-3B/-3B1 underscores our continuing firm commitment to the corporate and regional aircraft markets and to delivering engines that bring solid value to our customers," Thompson said.
The original CF34, the CF34-1A, was developed in the early 1980s as a commercial derivative of the TF34 military engine, specifically for the Canadair Challenger 601 business jet. It offered operators an engine with reduced noise, improved materials, modular construction, and containment features. The -3A model provided extended range and higher payload at high/hot conditions. The Challenger 601 and Canadair Regional Jet's current engine, the CF34-3A1, added an improved low-emission combustor, longer-life materials, and improved maintainability.
The high reliability and performance achieved by CF34 engines on the Canadair Challenger 601 and Regional Jet have established the CF34 as one of the best turbofans in the industry.