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).
Letter to R.A. Railton regarding the source and stress specifications of coil springs.
| Identifier | ExFiles\Box 154\2\ scan0027 | |
| Date | 24th September 1937 | |
| 130J Rm{William Robotham - Chief Engineer}6/R.{Sir Henry Royce} 24th Sept. 1937. R.A. Railton, Esq., Messrs. Thompson & Taylor (Brooklands) Ltd., Weybridge, SURREY. Dear Mr. Railton, We obtain our coil springs from the English Steel Corporation. They are not ground on the outside. It is surprising the stress that can be used. On our P.III we are running at 136 lbs per square inch corrected stress. Yours sincerely, | ||