"...but at least even in 1968 most RAF aircraft were relatively modern..."
Yes indeed Beags.
Its remarkable to look back to that time and reflect that in 1968 PA474 was still only 23 years old and the BBMF's 'vintage' Spits and Hurricanes were all under 30. Today the RAF have quite a few 35 year old machines still in operational service.
[As a No. 1 Group 'erk' I was at Scampton for the 50th, but the flypast was the same.]
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Through difficulties to the cinema