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).
Calculation of the stiffness ratio for a proposed Bentley crankshaft compared to the standard.
| Identifier | ExFiles\Box 85\5\ scan0122 | |
| Date | 1st December 1936 | |
| 217 E.{Mr Elliott - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}12/R.1.12.36. Proposed Bentley Crankshaft. We have calculated the stiffness of the suggested 2 1/2" dia. journal crankshaft having 1/8 narrower pins and 1/16th narrower webs. The ratio of the stiffness of this shaft to the present standard is:- 51.5/51.0 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||