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).
Potential weight savings from using aluminium brake drums and modifying hand brake shoes.
| Identifier | ExFiles\Box 96\4\ scan0070 | |
| Date | 1st July 1936 guessed | |
| -2- at the same time we think we could build aluminium drums 14" in dia., which would be as good as the 16" drums now standard. As we have no design for Ph.III 14" drums we can only estimate the saving, which we say could be, on the whole car, 55 lbs. In the foregoing we have ignored the weight of brake rods, as we say this has not varied much on Ph.II. and Ph.III (or 12" drum Ph.III). Throwing away the present hand brake shoes might save another 20 lbs. (conservative estimate). Hs{Lord Ernest Hives - Chair}/A.F.Martindale. | ||