Hi Jack
I made arrangements with the museum a few weeks ago, when I got there all the engines were running, which was great but it meant I couldn't get to them to do my measuring thing, found out the reason they were running was that they were testing them ready for a visit by HRH wing nut ears (Charlie) most inconciderate if them, you'd have thought they'd have told him to hang on until Stew was done with them. Haven't been able to free up time since to go over but I will.
Stew