The Manchester was considerably better than many of the bombers currently employed by bomber command and can hardly be considered the worst aircraft of the war. The Vulture engines were the weak point of the design. The Manchester's airframe was relatively unchanged in the switch to the Lancaster.
Well the engines are a big part of a design, normally you design the aircraft around the engines. Countless aircraft have been designed that way, unfortunate for the Manchester it wasn't designed that way.
But the Lancaster was essentially a Manchester with four Merlins rather than two Vultures (plus other changes demanded by the engine change). Thus the basic design of the Manchester must be considered very good.
the fusilage was bearly modified atal in the change, just to prove that, a few manchesters were stopped half way through production, and were continued as lancasters...........
firstly, for the building societies point of view it was fantastic, endorsing their bank like that, must have done wonders for business and it was good as a glider tug if you wanna be serious