Yes, it is a Mk I, and yes, that will make four airworthy examples when it flies (five if you include the BBMF’s Mk II, to all intents and purposes the same as a MK I, just built at Castle Bromwich)

Is this really all that differentiates between a Mark I and a Mark II?

Excuse my ignorance but why does ‘627 have a Canadian roundel by the cockpit?

By that time they will buy Chinese.

Everything is made in China, except babies which are made in va-china! 😀

That’s exactly what I was thinking Rocketeer.

I always thought during The Gulf War 1990/91 even nearing 30 years in service the Buccaneer didn’t look even slightly out of place amongst the Tornados, F15s, F16s, frankly any of the aircraft it served with!

Hungary Mi-24V :

Wow! I didn’t think that helicopter could look any better. 🙂

Sorry if any of these has already been mentioned. The Avro 707 was the proof-of-concept delta design that was principally the work of Stuart D. Davies, Avro chief designer, the 707 programme provided valuable insights into the Vulcan’s flight characteristics. No 707s are now airworthy. Both examples of the Avro 707A variant survive. One, WZ736 is preserved at the Museum of Science and Industry in Manchester, the other, WD280 at the RAAF Museum in Point Cook, Victoria. WZ744, the single 707C is displayed at the RAF Museum, Cosford near Wolverhampton.
Two prototype and two pre-production English Electric Lightnings can be found in the UK, WG760, the first prototype P.1A at the RAF Museum Cosford, England. WG763, the second prototype P.1A at the Museum of Science and Industry, Manchester, England. XG329 P1B/Lightning F.1 pre-production aircraft at the Norfolk & Suffolk Aviation Museum, Flixton, England. XG337 P1B/Lightning F.1 pre-production aircraft at the RAF Museum Cosford.
The Flying Bedstead, the Rolls-Royce Thrust Measuring Rig is on public display at the Science Museum in London.

Talking of The Helicopter Museum, do they have any prototypes at Middle Wallop?