Scott Nicholas
A United Technologies Corp. division has tested a three-stream fan in an F135 propulsion system as part of the U.S. Air Force‘s Adaptive Engine Technology Development initiative.
Pratt and Whitney said Sept. 18 the test occurred at the Arnold Air Force Base in Tennessee, and aimed to demonstrate the division’s capacity to meet combat aircraft propulsion requirements of the AETD program.
UTC was awarded a $335 million initial contract in 2012 to develop engine technology for the service branch.
“Preliminary data from the test indicates our three-stream fan has met or exceeded expectations with respect to performance as well as the integrity of the turbofan machinery and fan module,” said Matthew Bromberg, president of Pratt and Whitney’s military engines unit.
“We look forward to continuing work with our Air Force customer to advance the next generation of military fighter engine technology under the final phase of AETD, and beyond through the Adaptive Engine Transition Program.”
Pratt & Whitney designed the three-stream fan technology with the goal to help provide a balance for combat scenarios that require higher acceleration and range capacities.
The AETD program aims to reduce fuel consumption of fighter aircraft engines by at least 25 percent and increase thrust levels by as much as 10 percent.
Pratt and Whitney noted it also currently develops other propulsion technologies in an effort to address high-speed and long-endurance performance requirements.
