Ramjet engines provide a simple and lightweight propulsion system designed ... In a standard jet engine, the turbine draws the air in to create the fuel-air combustion mixture.

The new aircraft design features four 2-megawatt electric propulsion engines, each powered by a dedicated fuel cell system.

The company, which came on the scene in 2023, said on 17 March that its “BYA-1” business jet ... engine with a hybrid propulsion system composed of batteries and a hydrogen fuel cell.