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).
Clarifying the machining instructions for new crankshaft forgings.
| Identifier | ExFiles\Box 103\3\ scan0141 | |
| Date | 18th December 1931 | |
| Y5010. To By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}10/KT.18.12.31. NEW CRANKSHAFT FORGINGS. Referring to By.8/G.4.12.31. it would appear that these forgings are to be machined to E.56885 (i.e. with flats) but we gather this is not so and that they should be machined similar to the crankshaft that has just done 10,000 miles. In that case will you please instruct RHC.{R. H. Coverley - Production Engineer} accordingly. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||