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).
Engine speed tests, the use of Bentley valve springs instead of standard 25 HP, and a broken rocker.
| Identifier | ExFiles\Box 5a\4\ 04-page084 | |
| Date | 1st August 1934 | |
| Handwritten: Rm{William Robotham - Chief Engineer} Handwritten: 3840 Stamped: RECEIVED To Hs{Lord Ernest Hives - Chair}/STD. From G.W.H. Hotel de France, Chateauroux. Indre. France. 1st August 1934. Your memo Hs{Lord Ernest Hives - Chair}/STD.2b/EM. 30/7/34. H.GRILLS checked the speed of the engine along with the correct speed, and the figures we gave are correct. H.GRILLS remarks that it is most probable that all the tests carried out on the test bench have been done with Bentley valve springs, whereas ours are standard 25 H.P. We have since broken a rocker thus making it impossible to give you any more figures, but very definitely the speed of the car has gone up by the fitting of the standard rockers. G.W.H. [signature] | ||