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).
The replacement of metallic flexible tubing with a rubber tube for the switchbox on Phantom III & 25/30 HP models.
| Identifier | ExFiles\Box 166\3\ img044 | |
| Date | 18th February 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Wst. Er. 6090. BY/RD.3/B.18.2.37. SWITCHBOX : Phantom III & 25/30 HP. Herewith blueprint of RR.Sch.1054, showing a Rubber Tube in place of the metallic flexible tubing between dashboard and switch and along the back of the instrument board. This scheme effects an economy in cost, and also assists in noise insulation of the instrument board. BY/RD. | ||