From Royal Mail's Post and Go News website:
Kiosk M001 is to be installed at BFPO HQ in RAF Northolt. It will be
used as an evaluation kiosk for BFPO requirements. The kiosk is not
available to the public and initially will vend stamps for personnel on
the base. Weigh and Vend scales and other equipment will be added at a
later date as the evaluation progresses.
Royal Air Force
Machines A006 and A008 will be installed in RAF Hendon and RAF Cosford
respectively from March 2016. [These two machines will be at Spring Stampex for the last time, therefore.]
Exact dates to be advised. Both locations
will carry the overprint ‘Royal Air Force’ and will vend Machin and
Union Flag stamp designs.
..... and, no doubt, Poppies at the appropriate time. I forecast these locations a while ago, which suggests that I am spending too much time thinking about Post and Go! No more guesswork for me!