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).
Standardisation of cotton 'A' fabric linings for 20/25 HP torque reaction dampers to reduce booming.
| Identifier | ExFiles\Box 172\1\ img183 | |
| Date | 18th December 1930 | |
| RR 758 (10H) (3-7-30) BM. 6/2571. COMPLETED 3.3.31 STANDARDISATION of CHASSIS PARTS. Date 18.12.30. Description of Parts: Cotton 'A' Fabric Linings for Torque Reaction Dampers. 20/25 HP. No. 634 / 5005. Origin: To reduce booming at 48 - 52 M.P.H. Experimental Test Report. Fitted to 14-G4, 17-G4., with beneficial results. The original damper setting is retained longer than when Ferodo friction discs are used. Road Test Report. At present completing 10,000 miles test on 18-G4. [ ] A Scrap and replace at all costs, including Chassis already delivered to Customers. [X] B Scrap and replace on Chassis in Works. [ ] C Scrap present stock and replace on all Chassis not yet handed to test. [ ] D Use existing stock. Alteration effective on future Chassis. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ - 2. 7d. Cost of New Part. £ - 2. 7d. Wor.{Arthur Wormald - General Works Manager} Difference per Car. £ Nil. Cost of Parts in Works which will be scrapped if commenced on:- Series............£............ Series............£............ Series............£............ Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen} 26.2.31. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 27.2.31. INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 2.3.31. | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 2/2/31 | Agreed R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 19.2.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 22.12.30 | Agreed C. RG.{Mr Rowledge} | 19.12.30. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 22.12.30. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 22.12.30. | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 19.12.30. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} and Mx.{John H Maddocks - Chief Proving Officer} E.{Mr Elliott - Chief Engineer} | 22.12.30. | Agreed AE. PN.{Mr Northey} | 23.12.30. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||