Well, you've got me looking in my archives now!
Some questions I'm quite keen to know the answer to on the Lancastrian, and Brian Abraham you may be able to help here.
Colin Cruddas at Flight Refuelling passed on some info and pics about their Lancastrians about 8 or 9 years ago, most of the pics can now also be found by Googling for pics of Lancastrians. At the time of the Berlin airlift, two things stand out in pictures, namely:
a) the aerial fit on the side of the nose - navaids presumably, but what?
b) Some aircraft have a window let into the port side of the nose with what appears to be a circular device behind it. Any suggestions as to what that device might be?
Yours in blissful ignorance
GM