No transatlantic flight needed....unless you are coming for beers...
Not a Fincastle crew---we were not allowed to participate. I was on the Nimrod Flight Trials Crew, (NFTC), part of 18 Group Group Standards Unit, (GSU). We used to be called the NFTU, (Unit), it was changed to "Crew" when we merged with the GSU.
I emigrated Stateside over 20 years ago, and now fly Fire Helicopters on contract to the US Forest Service for most of the year. Over here the average military pilot getting out these days has very few hours and is not adapt at working in the field with little or no support crew behind him---hence my comments. Typically they can maybe fly the aircraft unaided, (as in without a co-pilot), but it is all the ancillary stuff that goes with it that they lack.