Rolls-Royce’s Giant UltraFan Engine: Roaring to Life on Green Fuel

By Wiley Stickney

Published on

Image Credit: Aviation Week

Rolls-Royce is making big waves in the world of eco-friendly flying! They’ve just announced that their massive UltraFan jet engine has reached full power using 100% Sustainable Aviation Fuel (SAF). But that’s not all – they’ve also confirmed that all their current civilian engines can run on this green alternative. Pretty cool, right?

With the aerospace industry under pressure to come up with more efficient and environmentally friendly tech, Rolls-Royce’s move to use SAF across their entire product line is a game-changer. It’s like they’re giving a big thumbs-up to a cleaner future for air travel.

Now, let’s talk about this UltraFan engine. It’s huge! We’re talking about a fan that’s 140 inches (that’s almost 12 feet!) across. This beast can pump out 64 MW of power and has hit a peak thrust of over 85,000 pounds in tests. Looking ahead, they think it could even scale up to 110,000 pounds for future planes in the 2030s. Imagine that!

What makes the UltraFan special is its geared turbofan with a variable pitch fan system. Don’t worry if that sounds like a mouthful – it basically means the engine can adjust itself for the best performance during different parts of a flight. Plus, it uses carbon composite fan blades, which makes it lighter and 10% more efficient than its older cousin, the Trent XWB. That’s a big deal in the world of jet engines!

Rolls-Royce isn’t just focusing on the future, though. They’re also looking at how they can use some of the UltraFan’s cool new tech in their current engines. And get this – all of their existing engines are now certified to run on 100% SAF. They’ve even tested their BR710 business jet engine with this green fuel at their facility in Canada. It’s like they’re giving their whole engine family an eco-friendly makeover!

Here’s something exciting to look forward to: a Virgin Atlantic Boeing 787 Dreamliner with Trent 1000 engines is gearing up to make the world’s first transatlantic flight using only SAF. Right now, the rules say planes can only use a 50-50 mix of SAF and regular jet fuel. But with all these tests showing it’s possible to go full green, we might see those rules change in the future.

Simon Burr, a big shot at Rolls-Royce, summed it up nicely. He said that to achieve zero-emission flying by 2050, we’ll need a mix of super-efficient engines like the UltraFan running on 100% SAF. In fact, he thinks this combo could take care of about 80% of the problem. That’s huge! It just goes to show how important this announcement is, not just for Rolls-Royce, but for the whole industry. Looks like the future of flying is getting greener by the day!