Since the 1980s--when Boeing switched from the type's original low-bypass Pratt & Whitney JT8D engines to the CFM International CFM56--the reduced ground clearance when mounting high-bypass
powerplants featuring improved fuel economy has required flattening the bottom of the cowlings.
And up to 2035, it is expected that other improvements such as natural and hybrid laminar flow control, high-bypass
engine architectures, electric landing gear drives, and fuel cells for onboard power generation will all deliver notable efficiency gains, IATA said in a recent analysis.
The Pratt & Whitney PW4000 is one of the best-selling high-bypass
turbofan family of aircraft engines in the industry, with a certified thrust ranging from 52,000 to 99,000 lbf.
Future studies will research the severity of collisions with general aviation (GA) aircraft, rotorcraft, and high-bypass
turbofan engines representative of those found in airline fleets today.
With most of the air flow directed around -- rather than through -- the core of the engine, it was the first "high-bypass
" turbofan of the jet age.
Caption: Drew Ware (left) and Lawrence Peters Austell work on the CFM56-3B1 high-bypass
turbofan engine that was donated to GNTC by Southwest Airlines.
Over time, shrieking turbojet engines gave way to low-bypass turbofan engines, then high-bypass
The power gearbox will enable the UltraFan to deliver efficient power over a range of take-off thrusts for high-bypass
ratio engines of the future.
Since 2006, he has been involved in adapting Rolls-Royce's high-bypass
Trent jet turbines into industrial turbines that can be used in remote locations and aboard ships and offshore oil platforms, as well as for distributed generation.
turbofan engines, mounted under 34-degree swept wings, power the KC-46A to takeoff at gross weights up to 415,000 pounds.
Mitsubishi executives stress that their product is 20 per cent more fuel efficient than other leading single-aisle jets, because it was engineered specifically to work with a Pratt and Whitney high-bypass
geared turbofan engine.
Global bearings company SKF (STO:SKFB.ST) announced on Wednesday that it will supply CFM International with mainshaft and gearbox bearings for the LEAP engine programme, a high-bypass
aircraft turbofan engine.