Both Alstom and Siemens produce a number of trains for Europe and the UK that have a pantograph on one (or two) coach(es) and powered bogies distributed across multiple coaches. Seems to me that having one vehicle provide power to traction motors on another vehicle "is proven".
Jeff Smith wrote: ↑Mon May 22, 2023 10:07 am No. Only Chargers. My point was that they should.The only thing I would contend with the Airo sets is that it's harder to extend (more to connect) VS regular consists. Commuter rail needs more flexibility, especially if they get advance notice of school trips to NYC's museums. For that now, just hook another car, connect air, power, and communications.