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).
Decision to use Nitro Alloy for all future experimental crankshafts following successful 10,000-mile tests.
| Identifier | ExFiles\Box 103\3\ scan0137 | |
| Date | 7th December 1931 | |
| By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} X 5010. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/AD7.12.31. X5010 CRANKSHAFTS. Since it has been agreed that Nitro Alloy crankshafts should be used on production, and we have had such excellent results on 10,000 miles tests on both 40/50 and 20 HP. cars, we consider that all future new type experimental crankshafts should be ordered in this material. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||