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).
Request for information on camshaft acceleration, deceleration, and tappet velocity for various engine models.
| Identifier | ExFiles\Box 109\3\ scan0071 | |
| Date | 26th February 1941 | |
| To Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden} from Rm.{William Robotham - Chief Engineer} 700 1030 Rm.{William Robotham - Chief Engineer}12/ET.26.2.41. While you are doing the Myth camforms, I should be glad if you would give me a little general information about our camshaft, in easily understood units. I should like to know the maximum positive acceleration in Ft/sec2 of the inlet valve in:- 1 - The old Bentley II camshaft, 2 - The Merlin camshaft, 3 - The Bentley V camshaft, at 1000 engine r.p.m. Also the maximumm deceleration at the same speed, i.e. 1000 revs. We should like to know the velocity at which the tappet hits the valve on the opening and closing toe on the B.V and on the B.II shaft. Rm.{William Robotham - Chief Engineer} [Watermark: BRITISH MADE] | ||