I can add a number of notes to this thread..
- the Huey moved very recently by air to Hurn where it is op by Bournemouth Aviation Museum (ex Jet Heritage)
- per the new edition of International Air Ambulance mag, the 109 Power VNe is 168 Kts.. and the Dyfed-Powys one is certified to 168 even with the draggy bits...
- the yellow/white scheme went out _years_ ago (and Manns gave up the Agusta dealership in favour of Bell 10+ years ago) and the SAS 109s are regularly repainted in civvie schemes to confuse the natives. Current schemes include mid blue with navy undersides and white with red/blue stripes
- _all_ the SAS 109s carry military serials, although they tend to be painted in the next colour number up from the background and are thus not very visible even close up! Look on the pilots doors immediately below the windows and on the sides of the nose. On one (now superceded) scheme they painted the serials in black on a dark navy blue stripe. The serials are ZE410 to ZE413 and these 109s (all A models as Pinger rightly said) are unusual, but not unique, in the UK having sliding doors and hardpoints above the doors for fitting winches. Go looking....
JWP