Don't worry this thread is NOT all to do with steam enginesUnder a different thread I answered a members querry over the Southern Railways Chief Mechanical Engineer O.V.S Bullied's great creation, the "Coffee Pot" Q1 Class 0-6-0 Austerity locomotive of 1942, of which one C1 or BR No. 33001 is preserved on the Bluebell Railway in Sussex.

This locomotive was Bullied's design for the war (WWII) effort, with so much steel saved by dramatically trimming the cosmetic finish of these powerful frieght loco's, coming in at 54 tons 18 cwt, with the tender at just 16 tons, that each one came in some 14 tons lighter than 'standard' designs of frieght engine's.
Thus resulted a tremendous overall saving of 560 tons of steel over the class of 40 engines, at a time (1942) when Britain was desparate for every ton of metal it could lay its hands on*, plus significant reductions in maintenance / labour / costs. 8-) 8-) 8-)
*Some members may remember those days, but just for once I am NOT old enough to do so!!
I believe, although I could be wrong, that Bullied was the first to create such dramatic savings in steel (and maintenance costs) in such a radicule way for one design of mechanical engineering.
This got me thinking about the
dramatic reduction in steel used in cars from those built in the 1950s and those built today in 2008, from an average weight of 2.5 tons to 1.5 tons (?? I believe).
With the automobile when do
you think the 'revloution' really started in weight savings; what model / designer in particular created this move, and was it due to the use of alluminium, fibre glass or some other material used in construction? :-/ :-/ :-/ :-/