From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
By A.A. Elliott discussing weight reduction opportunities on engine components like the crankcase and silencer outlet.
| Identifier | ExFiles\Box 3\3\ 03-page078 | |
| Date | 20th June 1908 guessed | |
| (4) With reference to the bottom half of the crankcase it was considered that this did not quite follow the drawing with regard to thickness and a new one has already been made with a saving of some 5 1/2 lbs of metal. In another instance 1 1/2 lbs was saved by making the cover on the bottom of the afore mentioned part a die casting. Another part noticed was the silencer outlet. The thickness of the metal could possibly be reduced or the material altered to aluminium. a lighter pressure would be good. In conclusion I would recommend that one draughtsman be requisitioned for the purpose of examining and bringing to notice every part of the engine with a view to thoroughly investigating all reasonable possibilities of reducing its weight. A.A.Elliott. [Handwritten notes in the left margin]: Excellent C. odd Now understood to be altered to cast iron & considerably heavier. Yes. | ||