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).
Requesting crankcase depression tests on a Chevrolet and a 25/30 model.
| Identifier | ExFiles\Box 126\4\ scan0170 | |
| Date | 25th January 1937 | |
| Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} from Rm.{William Robotham - Chief Engineer} 1036 Rm{William Robotham - Chief Engineer}9/R.25.1.37. CRANKCASE DEPRESSION IN THE CHEVROLET. Will you please fix up a water gauge on the Chevrolet crankcase, and get a figure for the variation in the crankcase depression with speed. Will you repeat the test on a 25/30 with a breather pipe on the filler cap, and let me have the result. Rm.{William Robotham - Chief Engineer} | ||