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).
Design and limitations of the tachometer drive for B.60 & B.80 models.
| Identifier | ExFiles\Box 124\1\ scan0283 | |
| Date | 8th December 1939 | |
| 10HH To Rm.{William Robotham - Chief Engineer} c.c. to Jnr.{Charles L. Jenner} Jnr.{Charles L. Jenner}12/JH.8.12.39. Tachometer drive B.60 & B.80. Re your conversation on the 'phone, the drive design is now complete. The limitations are that the shaft emerges from the camshaft at a flat Sh angle and may make the layout untidy looking on the dashboard. In view of this you have suggested that it will be possible to buy an angular connection to attach to the tachometer drive body. Jnr.{Charles L. Jenner} | ||