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).
Speedometer revolutions per mile for a 40/50 HP car, requesting a correction to a drawing.
| Identifier | ExFiles\Box 165\4\ img231 | |
| Date | 2nd January 1934 | |
| By/CGH.{W Clough} From Hs{Lord Ernest Hives - Chair}/Wst. 81807 Hs{Lord Ernest Hives - Chair}/Wst.4/MA.2.1.34. 40/50 HP. SPEEDOMETER. With reference to the above we have already rolled a 40/50 car with 19" x 7" tyres and the road wheel revs per mile are 640. For the 12/41 axle this gives a speedometer revs per mile figure of 789 and for the 14/41, 860. Will you please arrange to correct drawing D73749 accordingly. Hs{Lord Ernest Hives - Chair}/Wst. | ||