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).
Letter to Major F.B. Halford regarding tests on R.R.56 rods on a Bentley engine.
| Identifier | ExFiles\Box 128\1\ scan0274 | |
| Date | 26th January 1937 | |
| (Experimental Dept.) J 1104. Rm{William Robotham - Chief Engineer}3/R.{Sir Henry Royce} 26th January, 1937. Major F.B. Halford, 8 & 9, Golden Square, LONDON. W.1. Dear Major Halford, Thank you for your letter of the 25th January. I enclose copy of the advertisement; we, apparently jumped to conclusions because we took it that the R.R.56 rod would be running direct on the shaft. We ran a number of sets of these rods under high duty on a Bentley engine and on a nitrided shaft, the bearing appeared to be quite satisfactory. We did not go on with them because we were afraid that under extreme temperatures of cold they would tighten on the crankshaft. With the increase of production of austenitic steels, this objection may no longer hold water. Yours sincerely, | ||