Butcher Harris wouldn't have agreed to the drop in tonnage carried in
exchange
for the saved lives of a few thousand Bomber Command heroes - they had
discussions on re-installing the turrets and it was flatly denied.

Worse, it was shown that enlarging the ecape hatch diameter just a few inches
would mean a lot more air crew could get out of damaged aircraft. But that was
nixed because that would have slowed down the production. The crews were
expendable.

Walt