Rolls-Royce Sets Record for The World’s Most Powerful Aerospace Gearbox

It can run up to 100,000 horsepower!

Earlier this month, Paul Stein, CTO of Rolls-Royce had announced at the International Society for Air Breathing Engines (ISABE) conference in Manchester, UK that they had broken the record of the most powerful aerospace gearbox with their new “Power Gearbox.” At 70,000 horsepower, the gearbox will be playing a vital role in Rolls-Royce new UltraFan engine.

But the record doesn’t just end there- as the Power Gearbox is designed to run at a maximum of 100,000 horsepower, and future demonstrators are expected to reach that maximum.

Source: Flickr, Rolls-Royce

Testing of the Power Gearbox began in May of this year. Results have shown that it can manage power the equivalent of 400 family cars at full throttle. The company is now focusing on to endurance and reliability tests, plus an Attitude Rig test, which will stimulate the effect of the gearbox being on the actual wing of the aircraft it’s going to be attached to.

Source: Flickr, Rolls-Royce

The contraption is based off of a “planetary” design, with each “planet” capable of producing a massive amount of force. This design allows the shafts at the core of the engine to run at very high speeds, but allow the fan in front of the engine to run at a slower speed. This allows it to become stronger, more efficient, and weigh less.

Source: Flickr, Rolls-Royce

This record breaking aerospace gearbox was all the result of Rolls-Royce collaborating with Liebherr-Aerospace, through their Aerospace Transmission Technologies joint venture.

“Reaching this milestone and impressive performance is proof of the great cooperation of all parties involved and especially of the expertise that accumulates in our joint venture with Rolls-Royce,” says Arndt Schoenemann, Managing Director at Liebherr-Aerospace Lindenberg GmbH. “Together, we are writing aerospace history.”

Source: Flickr, Rolls-Royce

As only just one of the pieces to their UltraFan engine, the companies state on the Rolls-Royce website that the engine shall feature:

  • Maximum fuel burn efficiency and low emissions through a new engine core architecture
  • Reduced weight through the use of Carbon Titanium (CTi) in fan blades and a composite casing
  • Increased efficiency through the use of ceramic matrix-composites (CMCs) which are heat resistant and require less cooling air
  • Efficient power for high bypass ratio engines of the future through a geared design

The UltraFan engine is expected to be completed in 2025.


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Rolls-Royce Sets Record for The World’s Most Powerful Aerospace Gearbox

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