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).
Designing damper discs with 30% larger area for a P.2 conversion mounting to address a knocking issue.
| Identifier | ExFiles\Box 14\5\ Scan232 | |
| Date | 8th March 1931 | |
| BY.{R.W. Bailey - Chief Engineer} FROM E.{Mr Elliott - Chief Engineer} X7005 C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} HS.{Lord Ernest Hives - Chair} E1/M13.8.31. P.2. CONVERSION MOUNTING - LARGER DAMPER DISCS. Please find herewith LeC. 2934. shewing some damper discs of 30% larger area. We have designed these in response to a report from RM.{William Robotham - Chief Engineer} (HS{Lord Ernest Hives - Chair}/RM{William Robotham - Chief Engineer}4/AD11831.) that the high unit pressure on the present dampers being tested in France has set up a knock. It is desired to produce some of these larger dampers and send them out to GWH.{George W. Hancock - Head Chateauroux} at the earliest possible moment. E.{Mr Elliott - Chief Engineer} | ||