Re: Electric planes?
>"It's a genuine question, I'm not an aero engineer but I struggle to see the benefits of electrical propulsion beyond the "look how clever my engine is" bragging rights."
For super small private planes it might be worthwhile. ie a Piper Telsa. Mainly if you can reduce the service costs over a regular engine.
I strongly suspect this project is a combination of Greenwashing and a way for RR to score some Eco grants/tax-credits to do R&D for their small turbine on-site generator business.
If you can have 2.5MW on a pallet, compared to their current container size powerplant then a lot of on-site diesels could be replaced.