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).
Listing parts standardized or submitted for standardization following a 15,000-mile vehicle test.
| Identifier | ExFiles\Box 83\1\ scan0265 | |
| Date | 29th October 1936 | |
| 200 a To Sg.{Arthur F. Sidgreaves - MD} from Rm.{William Robotham - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} Rm.{William Robotham - Chief Engineer}6/AP.29.10.36. G.B.IV. - 15,000 MILES. Replying to Sg.{Arthur F. Sidgreaves - MD}12/E.28.10.36., the following parts have been standardised or will be submitted for standardisation as a result of running on this car. 1. Larger oil pumps. 2. Deturbulated cylinder head. 3. Delco-Remy ignition governor. 4. Improved exhaust valves of stellited low expansion material. 5. Modified cylinder head and water circulation. 6. Close clearance inlet valves. 7. Bob weight anti-jagger brake scheme. 8. Better rear axle pinion mounting. 9. Lightened rear road springs. 10. Lighter thin plate battery. 11. Less costly exhaust system. 12. Improved front axle control dampers. 13. Improved slipper wheel. The improved filtering did not prevent bearing trouble and so we are not adding additional expense and complication to the engine. We are not approving of the Terraplane engine mounting and the Cantilever pedals until we can eliminate the increased front end movement which it has brought about. The idling is so good with the deturbulated cylinder head that we do not need small carburetters. We propose to experiment with the aluminium brake drums now being fitted to customers' cars before we put them into production. Wear in France was unsatisfactory but the brakes were purposely used hard and this trouble may not reoccur under normal driving conditions. Rm.{William Robotham - Chief Engineer} | ||