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).
Laboratory report on the chemical analysis and hardness of Phantom III Cylinder Liners.
| Identifier | ExFiles\Box 132\4\ scan0023 | |
| Date | 23th November 1936 | |
| To Rm.{William Robotham - Chief Engineer} 1124 HL3/WR.23.11.36. Laboratory Report No.L4180. Le SMITH} Re: Phantom lll Cylinder Liners. Graphite - 2.88% Combined Carbon- 0.32% Manganese - 0.85% Titanium - 0.10% Silicon - 2.39% Sulphur - 0.07% Phosphorus - 0.43% Nickel. - Nil Chromium - 0.40% The Brinell Hardness was 360, whereas tha drawing calls for a minimum of 400. H1. IHe. | ||