Tyre pressures?????????
Last time I saw a SAS A109 it landed at the old Doncaster airport circa 1993.
It was painted in Alan Manns house colours (yellow black white).
They couldn't have made it more conspicious if they wanted to. It had lots of curious people wandering over to have a look.
Reason being that it had NO Registration.
On extremely close inspection the military serial was visible painted on in a virtually non contrasting colour.
Bit like a sniper wearing a ghillie suit with a strobe light on his head.
Covert it certainly was not.
Even less so when it was common knowledge that the only military A109's belonged to the SAS.
Further more dumping it right outside a busy flying club with a load of trainee helicopter pilots in residense suggests they weren't overly concerned about secrecy.