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).
Requesting the alteration of a speedometer's revolutions per mile setting due to a change in tyre size for car 19-GIV.
| Identifier | ExFiles\Box 59\2\ Scan148 | |
| Date | 4th April 1932 | |
| X6051b Reg. from Hs{Lord Ernest Hives - Chair}/Wst. c. D/BP. c. Despatch Stores. Hs{Lord Ernest Hives - Chair}/Wst.4/AM4.4.32. SPEEDOMETER FOR 19-GIV. On this car we propose to fit one of the 3 sets of Smith instruments we have received. The speedometer, however, will not be suitable as the drive revs. per mile for the std. 20/25 which will have 18" tyres whereas on 19-GIV we shall use 19" tyres. We shall require, therefore, the revs. per mile figure of this instrument altering from 810 (the std. figure) to 838 revs. per mile. We are handing this instrument to the Stores and we should be glad if you will arrange to despatch it to the A.T. Speedometer Co. for alteration as above. Hs{Lord Ernest Hives - Chair}/Wst. | ||