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).
Note instructing Hancock to test recommendations and advising that the clutch brake should be a last resort.
| Identifier | ExFiles\Box 96\1\ scan0319 | |
| Date | 14th June 1938 guessed | |
| N.R.C. 361 Get Hancock to try our recommendations & report. Ry agrees clutch brake should be used only as a last resort. Rm.{William Robotham - Chief Engineer} | ||