Thanks, I am sure that is the actual plane. Much smaller than the AN2 mentioned by others, but thanks for the suggestions.
As an aside, on "Midweek" on radio 4 a few days ago the potential pilot for the aircraft, one Anne Wilson, was interviewed, she said it is like a " Cadillac" inside, presumably all coloured leather upholstery!
If the Duxford event is today, sadly I dont think there will be much flying, weather looks terrible.
Thanks again for the info.
EGCA