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).
Telegram detailing additional bearing test conditions, including revolutions, duration, and maximum temperature.
| Identifier | ExFiles\Box 173\1\ img235 | |
| Date | 10th May 1937 | |
| RR. 146A. 1/2 OKS. 145030 10.5.37. 5/9720 Z. ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE. Time Received Date To By from Z additional tests same bearing conditions thirty second duration thirtyfive hundred revolutions extended normal revs repeated twenty times - totaling ten minutes stops maximum bearing temperature one hundred. FROM THIS SHEET MUST BE FILED. | ||