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).
Methods for controlling radiator movement on the Silver Phantom.
| Identifier | ExFiles\Box 109\4\ scan0179 | |
| Date | 4th August 1939 | |
| Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} from Rm.{William Robotham - Chief Engineer} SILVER PHANTOM. We have read your note regarding the 'Silver Phantom Radiator movement with interest. We suggest that if you rubber mount the diagonal stays you will find that they are the best means of controlling the radiator movement. The amount of rubber used would be dictated by a compromise between noise in the body and radiator movement. Cannot believe that the bonnet side strips would be a very satisfactory means of controlling the radiator. Unless the car has a high cat walk, these are too low to provide much control. A design is being got out for mounting the radiator on a silentbloc bush centrally which would give it complete rotational freedom about this pivot, but at the same time restrain it from moving sideways and vertical. We are dealing with the bumper bar fixing plate, and also the side spare wheel carrier. Rm.{William Robotham - Chief Engineer} | ||