I will point out to our American friends that NO American bomber aircraft of ww2 vintage could even come close to the load carrying ability of the AVRO Lancaster. With a 33 foot long bomb bay and it's long range, it was the premier bomber of the era.

As has been mentioned, to carry the Grand Slam, modifications were needed, but on a regular night's work the bomb load for a Lancaster ( depending on distance to the target ) could be 12 to 14 thousand lbs of mixed bomb types. Please do some research and see what the typical USAAF bomb load in Europe was, for a comparision.

A further point.........The Lancaster was able, while fully loaded, to fly evasive maneuvers that would have torn the wings off a B19 B24 or B29. Ask a Lancaster veteran about " corkscrew " and see what he says ?

Jim Bunting. Toronto.