Bombardier Testing Second, Larger Flight Demonstrator of Blended-wing-body Concept

Bombardier has started flight testing a second, larger unmanned demonstrator of a conceptual blended-wing-body aircraft, expanding an effort the company says could inform the design of a radically different large-cabin business jet in future.

Earlier this year, the Montreal-based manufacturer revealed the “EcoJet demonstrator” programme, and said it was flight testing the design using a model aircraft.

Bombardier says initial findings from the flight trials have prompted it to continue the programme using a larger unmanned demonstrator.

“We’ve flown a much-larger model, in the 20-foot-span size,” Bombardier director of research and technology Benoit Breault told FlightGlobal at the International Aerospace Innovation Forum in Montreal on 6 September.

The latest model is about 20% the size of a large-cabin business jet, he adds. The earlier demonstrator is around 1.2-1.5m (4-5ft)-long.

Bombardier believes the radical new shape could enable a significant reduction in emissions and fuel burn. “With only changing the shape of the aircraft today, we believe we can reduce [emissions] by 17 to 20%,” says chief executive Eric Martel.

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