Airbus will test hydrogen-powered CFM LEAP engine on A380 superjumbo

The Airbus A380 represents the last superjumbo of a bygone, kerosene-guzzling era, along with the original Jumbo, the Boeing 747. Now the double-decker will serve as the unlikely test bed to help the industry fly into a fuel-efficient future.

Airbus will use a model to test its first propulsion system using hydrogen, a fuel the planemaker wants to introduce on a new passenger aircraft by 2035. The modified jetliner, the first of its kind that Airbus ever built, will maintain its four conventional turbines, while a fifth engine adapted for hydrogen use will be mounted on the rear fuselage.

The unusual design of the demonstration aircraft, developed in collaboration with engine-maker CFM International, will allow emissions to be monitored separately from those of the turbines powering the aircraft, including contrails, Airbus said in a statement. The wispy clouds planes leave behind in the sky are of growing concern as they trap warmer air in the atmosphere.

The hydrogen test program will give at least one of the troubled jumbo jets, consigned to the commercial scrap heap even before the pandemic, a second life as it tests the new technology.

Airbus CEO announced the collaboration with CFM, a joint venture of General Electric Co. and Safran SA on Feb. 21.

The demonstrator is set to begin flying in the middle of this decade. While a commercial product will be much smaller, the development plan allows Airbus to take advantage of the A380’s size to give engineers room for extra tanks, testing equipment, and the fifth engine at the back, executives said.

The main deck of the aircraft will have four hermetically sealed hydrogen tanks and a distribution system to the engine, a modified GE Passport turbofan. That smaller-scale version of CFM’s LEAP engine was originally designed for the business jet market and was chosen because of its light weight.

Airbus will carry out ground tests this year, then convert the aircraft, targeting flight tests by the end of 2026. This is in line with the company’s existing timetable to make its technology choices by 2027 and launch a hydrogen jet by 2035, Chief Technology Officer Sabine Klauke said.

Airbus rival Boeing Co. is testing hydrogen fuel cells on its ScanEagle3 pilotless military drone, while expressing skepticism about the 2035 target for commercial jetliners. Reported by Bloomberg.com