Aesir - The EH-101 was supposed to be single pilot for the RN, but I don't know if they actually use it that way. I've certainly been in the front left seat (as an FTE) of pre-production, RN and RAF variants, and all I did was add a little bit of help with the anti-cols, radio/nav setup, undercarriage etc, the pilot could certainly have handled it all by himself. We normally took it twin pilot though, unless we were short of pilots.