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).
Modification to a Phantom III starter switch, including a list of new parts required for testing.
| Identifier | ExFiles\Box 166\3\ img049 | |
| Date | 24th August 1937 | |
| existing switch made satisfactory c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} 6090 BY/RD.3/B.24.8.37. "PHANTOM III" SWITCHBOX. D.CD.1. - Modification to Starter Switch. Please put in hand one set of parts to the following new details :- D.76094 - Switch Base. 1 off. D.76095 - Switch Casing. 1 off. D.76096 - Spring Casing - Carbon Contact. 1 off. D.76097 - Upper Carbon Contact. 1 off. D.76098 - Lower Carbon Contact. 1 off. D.76099 - Spring - Carbon Contact. 1 off. D.76100 - Contact Barrel - Starter. 1 off. D.76101 - Push Button-Starter. 1 off. Please have these parts fitted to a Phantom III Switchbox to LOP. D.74970, in order that we may have a bench test on this modification. We suggest that 3 sets should be ordered of the Carbon Brushes, the pieces likely to give trouble, D.76097 & 8. Blueprints of the new parts herewith. BY/RD. | ||