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 suggestions for the radiator and troubleshooting for clutch shudder and the starter motor.
| Identifier | Morton\M1.1\ img086 | |
| Date | 1st October 1921 | |
| To HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} -2- R9/G17/10/21 Contd. RADIATOR. X4240 Regarding the radiator, I think generally we are very pleased with the appearance of this, but I fancy (if it could possibly be accomplished) that a radius at the back edge next to the bonnet of the same amount as the front edge, would add to its appearance, which does not seem quite satisfactory with the rounded edge at the front and the square edge at the back. CLUTCH X4244 Referring to the clutch, we fear you will have great difficulty in getting rid of the shudder reports on the low gear and the reverse. We believe that this can only be attacked by varying the materials, unless the clutch having the plate carried on a flexible centre will cause the action to be less intermittent. The reason why this only appears on the low gears we think is that the natural period of vibration of the clutch driven disc is much slower on these gears owing to the apparent increased flexibility of the transmission. We believe, however, that there is no way of altering this. In fact, we think it is very difficult for the clutch not to have such a fault unless it is an oiled clutch such as is used on the 40/50 If, however, the shudder appears to be distinctly less with a higher engine speed or a change of engine speed, there may be some hope of a change in the proportions or materials doing some good. Unfortunately, however, the phenomenon of friction at rest and friction in motion has a tendency to set up such a shudder. STARTER MOTOR. x4384 You will notice that we gave no instructions about | ||