The electric propulsion specialist has demonstrated an inverter that it says will support a 2 MW motor with hybrid-electric, electric or hydrogen power.
Pratt & Whitney, along with rivals such as GE, Rolls-Royce, and MTU, see multiple paths to air transport's green future, with hydrogen only one of these.
The leading engine companies from France, Germany, and Spain have forged a framework for joint development of the engine for the Next-generation Fighter.