My old mob of course, RAF Regiment.
A vertical blue/red TRF is the RAF. As opposed to the horizontal blue/red/blue TRF of the houshold divison (both cavalry and foot guards)
And I'm assuming mind you that a patrol of this nature in an RAF vehicle would be executed by RAF Regt personnel.
It is possible I suppsoe, but highly unlikely that it's a penguin patrol.
The 9 can't be 9 Sqn because there is no 9 Sqn RAF Regt.
The 9 might be the wing or group the Regt sqn is attached to.
Then again that might not be a proper TRF, it might just be a vehicle designation plate, i.e Vehicle 9, RAF.
I know we had those on landies when I was in, so we didn't have to bother with learning long complicated registration numbers!
