Originally Posted by oldbut
I agree that most Mainforce lancs had a upper turret, in fact most all lancs had them, the point I was making was that most of those that did fly without them were not anything special but were just supply shortages and were treated eaxactly like anyother lanc.
I have NEVER found anything that implied that the turrets were removed, all those without were either specials or supply shortages and all had the turret mods done at the factory.
From memory Leonard Cheshire had them taken off at 617 along with anything else he could think of to save weight. Paul Brickhill interviewed him about it form memory, details were in Brickhills "Dam Buster" book.