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).
Photograph showing B.17 unit big end bearings after various specified load and duration tests.
| Identifier | ExFiles\Box 115\1\ scan0203 | |
| Date | 27th November 1936 guessed | |
| ④ B.17 UNIT. BIG END BEARINGS. Nos 1 & 3 AC 4 and No.6 AC2 RUN 10 Hrs Full throttle 17 hrs ¼ load Nos. 2 & 5 AC2 RUN 15 Hrs. ¼ load. No.4 AC2 17 Hours ¼ Load. | ||