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 recalibration of a speedometer for a Bentley Car 3.B.50 due to a change in the rear axle ratio.
| Identifier | ExFiles\Box 165\2\ img192 | |
| Date | 9th May 1939 | |
| 6065 To D/S?. from HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel} Rm{William Robotham - Chief Engineer}/RC.{R. Childs} HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}18/Bl.9.5.39. 0/52440. Bentley Car 3.B.50. We hand you herewith :- 1 Speedometer removed from the above chassis. This has been calibrated for 9 x 37 rear axle, the axle on this car has now been changed to 11 x 41 ratio, will you, therefore, please arrange to have this instrument re-calibrated to suit this revised ratio i.e. from its present value of 700/revs/mile to 640 revs/mile, at the same time the makers should be aksed to give attention to the hodometer portion of the instrument as this appears to be very incorrect. HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel} | ||