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).
Calibration arrangements for Bensport speedometers based on different axle and tyre configurations.
| Identifier | ExFiles\Box 59\2\ Scan193 | |
| Date | 11th May 1933 | |
| Hs.{Lord Ernest Hives - Chair} C.E. [crossed out] x6051 BY/Cgh.{W Clough}11/G.11.5.33. BENSPORT SPEEDOMETERS. WST Hs{Lord Ernest Hives - Chair}/Wst.7/MA.5.3.33. We have now made arrangements for the speedometers for this chassis to be calibrated as follows :- 11/41 Axle and 5.50" - 18" tyres - 735 revs. per mile. 734 11/43 Axle and 5.50" - 18" tyres - 760 revs. per mile. 770 10/41 Axle and 5.50" - 18" tyres - 810 revs. per mile. 807 BY/Cgh.{W Clough} | ||