Electric Sky: GE’s New Catalyst Engine Can Help Hybrid Planes Take Flight By Generating Up To 1 Megawatt


Hybrid planes are moving closer to takeoff. At the EAA AirVenture Oshkosh airshow Tuesday, GE Aviation said it signed a deal with XTI Aircraft Company to use GE’s Catalyst engine as the core of a new hybrid-electric propulsion system for a planned XTI business aircraft, the TriFan 600. It’s the first step in what GE Aviation expects will be a journey that hopes to bring a new, differentiating product to the business and general aviation market.“Hybridization enables distributed propulsion, where you have one turbine turning multiple propellers on an aircraft,” says Craig Hoover, GE Aviation’s hybrid-electric pursuits leader for its business and general aviation unit. That’s unlike traditional turboprop engines that need a separate turbine for every propeller. It allows more hybrid planes to have more propulsion sources, freeing plane designers to rethink even the basics of aircraft design.

“That enables a lot of applications, such as taking off vertically. That will be very disruptive for the industry when you don’t have to go to the airport to get on an aircraft,” adds Hoover.

Current battery technology doesn’t allow enough energy density to make a long-distance electric aircraft feasible, Hoover explains. Like hybrid cars, hybrid planes will combine the benefits of a turbine engine, such as the high-energy density of jet fuel, with those of electric ones, such as less maintenance and less noise.

Some believe the pace of electric and hybrid aircraft getting into service is expected to be quick. According to The Wall Street Journal, ride-hailing company Uber Technologies Inc. plans to begin air service using electric vertical-lift aircraft as soon as 2023. Other companies say electric planes could be on the market even sooner, in 2021, through widespread retrofitting of existing turboprop planes with new electric engines, the newspaper said. What’s unique about the TriFan 600 is that the Catalyst will allow the plane to travel much higher — 30,000 feet — and go faster than all electric planes entering the market. The power of the Catalyst will also allow transport of a much larger payload while still being able to take off and land vertically.

Catalyst is the first turboprop engine to make it to the aviation market in more than 50 years that’s been designed completely from scratch. GE unveiled the engine in 2015 and has committed about $400 million to its development. The Catalyst’s “clean sheet” design means GE engineers have been able to take advantage of technological leaps the company has made in recent years with additive manufacturing, also known as 3D printing. With 3D printing, GE engineers have been able to distill down to just a dozen or so printed parts what typically would amount to some 800 components if they were made by conventional methods. The approach enabled them to reduce the Catalyst’s weight by 5% and improve fuel consumption by 1%. The engine for the TriFan will produce about 1,400 horsepower, or 1 megawatt of power.

The engine also sports a technology called full authority digital engine and propeller control (FADEPC), which is common in jets but has never been used in commercial turboprop planes. The technology will allow pilots to control a plane with just a single lever, instead of three in the traditional design — and four levers that would be needed with a hybrid engine. That simplifies the pilot’s job. Among the Catalyst’s other 98 patented technologies are advances that give it an industry-best 16:1 pressure ratio — an indicator of thrust — allowing the engine to extract better power at altitude, useful at the TriFan’s projected 30,000-foot cruising altitude.

In addition to improved performance and pilot operation, hybrid engines also free up airframers to radically rethink the design of planes. In the TriFan 600’s case, XTI has designed the craft to take off, hover and land vertically like a helicopter through the use of three ducted fans. The aircraft will then be able to rotate its two wing fans forward to operate like a plane, reaching cruising speed quickly. The TriFan 600 will carry five passengers plus its pilot, according to XTI. The plane already has 80 customer preorders.

In addition to the XTI TriFan 600, the Catalyst is also being used in Textron Aviation’s new luxury business aircraft, the Cessna Denali, a single-engine turboprop that is expected to be able to carry four passengers 1,600 nautical miles at a speed of 285 knots.

Says Hoover: “We see the Catalyst as being in the sweet spot from a power and altitude capability for where we see the turboprop market going with hybrid aircraft.”

Related Posts

$87 million US Army Contract for M109A7 and M992A3 Production Awarded to BAE Systems

BAE Systems Land & Armaments L.P., York, Pennsylvania, was awarded an $87,963,612 modification (P00137) to contract W56HZV-17-C-0001 for the production and delivery of M109A7 Self-ргoрeɩɩed Howitzers (SPH)…

An Overview of M1A2 Abrams

The M1A2 Abrams stands as a testament to the pinnacle of armored warfare, embodying cutting-edge technology and formidable firepower. Developed by the United States, this third-generation main…

Lethal military equipment from Rheinmetall and Uvision is acquired by Hungary.

Hero Loiteriпg Mυпitioпs represeпt a family of cυttiпg-edge, aυtoпomoυs, aпd highly effective precisioп weapoпs υtilized by armed forces across the globe. Notably, these mυпitioпs have beeп employed…

The US Air Force’s 144th Fighter Squadron Gets Lockheed F-117 Nighthawks for Training

A Historic Reυпioп: F-117 Nighthawks Joiп Forces with F-15 Eagles for Traiпiпg Video: Iп aп υпprecedeпted aпd historic collaboratioп, the U.S. Air Force’s 144th Fighter Wiпg (FW)…

Prepared for the Battlefield of Tomorrow? Let me introduce you to the StrykerX.

General Dynamics Land Systems Unveils Hybrid Electric StrykerX Technology Demonstrator General Dynamics Land Systems (GDLS) is using the Association of the US агmу (AUSA) 2022 conference to…

Honoring Shuttle Discovery (OV-103), The Unmatched Aerospace Pioneer.

The гetігemeпt of Space Shuttle Discovery (OV-103): Space Shuttle Discovery, designated as Orbiter Vehicle-103 (OV-103), has recently concluded its illustrious career as the first operational space shuttle…

Leave a Reply

Your email address will not be published. Required fields are marked *