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 a bench test for two types of British Jaeger speedometers to compare with standard instruments.
| Identifier | ExFiles\Box 165\2\ img116 | |
| Date | 1st October 1937 | |
| CAP. 6011 To Rm{William Robotham - Chief Engineer}/RC.{R. Childs} please note and return R.C. BY/RD.2/B.1.10.37. SPEEDOMETERS. Please receive herewith two Speedometers :- (a) A British Jaeger Magnetic Speedometer. (b) A British Jaeger Chrometric Speedometer each complete with Flex. Will you please arrange for these instruments to have a Bench Test so that they can be compared with the A.C. instrument previously tested, and the A.T. instrument which is now standard. The Flex. speed for these instruments must be 1,600 revs. per mile. BY/RD. | ||