Thanks for that, PN - I remember in my days driving "non-prop" (and faster) aeroplanes wondering at the problems so many military freighters (not all British) showed evidence of airflow problems "down at 't back end" during development - though Lockheed got it right first time, and it seems as though the "Bearbus" has too.
Thinking about back end problems reminds me of the "converted de Havilland from Woodford", but I won't go there ...
Tks again ...
