Why did RAF keep using its own Pilot's Notes/manuals when better ones available?

[DavidIsby]

1. All services have their own requirements for written documentation and manuals that they preserve with great zeal.
2. Recently, the DoD arranged the transfer of about two dozen USMC UH-1N helicopters to the USAF. While the USAF operate the same helicopters and the USMC helicopters all came with their manuals, the differences were considered such that it was one of the reasons the USAF decided they'd only operate about three and send the rest out of Davis-Monster to provide homes for unemployed gila monsters.
3. Compared to the US and Germany, Britain (not just the military) is manual adverse. They were running steam locomotives in Britain since the 1820s, but it was only in 1946, with the creation of British Rail and the need for standardization that anyone prepared a manual.