SION, Switzerland & MONTREAL–(BUSINESS WIRE)– #RTX–H55 today announced the delivery of certification-grade propulsion battery modules to Pratt & Whitney Canada in support of the RTX Hybrid-Electric Flight Demonstrator — a milestone that further validates H55’s transition from technology development to industrial-scale execution and represents an important step in the commercialization of the company’s certification-grade energy storage technologies for hybrid-electric aerospace applications. Pr