Whilst browsing back through the thread one of the few remaining grey cells kicked in and I remembered something that happened when we took XV 292 to Marietta for the 25th anniversary visit or at least I think it did. I have memories of having a briefing from Lockheeds on their C130 H.T.T.B. or at least I think that was the abbreviation, High Tech Test Bed in full. It was their frame for any possible updates or mods to the basic frame, slats is one thing I think was mentioned. I also believe it crashed some years later. Does anybody else have any memories of this during the visit or of the H.T.T.B.?