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Wey hey! That's the thingy I was thinking of! It's possibly even the one that was airworthy in the UK, and looked great flying around - very nimble and nippy, and I believe quite an effective COIN aircraft.
I'll get something sorted and posted later - got to go and do a scientific gravity test on some specialised fluids. (OK, so I'm off to the pub - haven't had a pint for four weeks!).
I realised after my last guess (P-47) that the clue was that it has a 3 blade prop. Doesn't seem to fit the Tempest (or P-47).
Sorry Glen, not a HoverflySikorsky r-4 hoverfly?
obviously a B-1 RD .....
Its not at Newark (good guess tho' !)I think it might be that little Polish helicopter at Newark
A pure guess - Rotorbuggy, the flying Jeep ?