P&WC outlines hybrid PW127 for ATR Evo as Collins partners and H55 advances 200 kWh battery demonstrator
RTX says Pratt & Whitney Canada is developing an advanced hybrid‑electric PW127 turboprop under an EU Clean Aviation project that could power ATR’s Evo. P&WC and Collins Aerospace are co‑designing the hybrid propulsion system, and Swiss firm H55 reports flight‑tested progress on a 200 kWh battery for demonstrators.