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).
Faults with an R.P. Adjustable Thermostat, specifically a spring issue causing flutter, and suggesting a modification.
| Identifier | ExFiles\Box 156\1\ scan0015 | |
| Date | 1st June 1929 | |
| Fl. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X4508 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG26. 6. 29. RE. R.P. ADJUSTABLE THERMOSTAT. We are returning to you the R.P. Adjustable Thermostat. The trouble with this instrument is that the controlling spring is not located in any position with sufficient accuracy. This is particularly so when it is working at low temperatures. At high rates of flow the valve appears to flutter. We suggest that if they wish us to test it further that they should modify the instrument according to their letter of the 10th. May. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||