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).
Longer experimental pistons for the P. 2. model, with illustrations and design suggestions.
| Identifier | ExFiles\Box 15\3\ Scan053 | |
| Date | 20th January 1931 | |
| BY.{R.W. Bailey - Chief Engineer} FROM E.{Mr Elliott - Chief Engineer} X/90/40 E3/M20.1.31. C. to WOR.{Arthur Wormald - General Works Manager} HS.{Lord Ernest Hives - Chair} MX.{John H Maddocks - Chief Proving Officer} re. LONGER EXPERIMENTAL PISTONS FOR P. 2. We are sending you herewith LeC. 2861. shewing the illustrations of various pistons compared, supplied by MX.{John H Maddocks - Chief Proving Officer}, traced for record purposes. A print is attached to MX{John H Maddocks - Chief Proving Officer}'s copy of this memo. In reply to HS{Lord Ernest Hives - Chair}/RM{William Robotham - Chief Engineer}1/WJ14131., we think that the bearing surface might be tried on the lines of the RRAI pistons - i.e. starting at the same width as P. 2. at the top of the skirt but expanding more rapidly. E.{Mr Elliott - Chief Engineer} | ||