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 chassis parts relating to increased rear shock damper loads.
| Identifier | ExFiles\Box 16\4\ Scan174 | |
| Date | 25th April 1930 | |
| RR 755 REVISED (10H) (DG 348 19-7-29) 5M. 6/643. COMPLETED 2.7.30. STANDARDISATION of CHASSIS PARTS. Date 25.4.30. Description of Parts. INCREASED REAR SHOCK DAMPER LOADS Origin. E/P R/T To improve high speed road holding. Experimental Test Report. We find that in the case of cars habitually driven at high speeds, this loading forms a useful alternative to standard. Road Test Report. Run 5,000 miles on various experimental cars. Now running 10,000 miles on 23-EX. Loads 100 lbs. H.P. 100 lbs. L.P. [STAMP: 20/25 H.P. CHASSIS] Weight of Old Part. Weight of New Part. Difference per Car. £ Signature from Cost Dept. that above is correct. J Olham [STAMP: RECEIVED 18 JUN 1930] Cost of Old Part. Cost of modification when carried out during repair of cars at works + 'til Company's expense. Cost of New Part. £0-19-9 per chassis Difference per Car. £ X No. 7520 Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to Customers. 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. Cost of Parts in Works which will be scrapped if commenced on:- Series.......£....... Series.......£....... Series.......£....... INITIAL | DATE | REMARKS l. 7/6/30 XBJ. Sg.{Arthur F. Sidgreaves - MD} | 28-6-30 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 27.5.30 | Agreed FHR. WOR.{Arthur Wormald - General Works Manager} | 28.5.30 | Agreed, subject to 10,000 miles test. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 29.4.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 2.5.30 | Agreed DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 28.4.30 | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 28.4.30 | Agreed. - Have only increased HP. on cases I have done. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 16.5.30 | Agreed AE. PN.{Mr Northey} | 28.4.30 | Agreed PN.{Mr Northey} CWB. | 28.4.30 | Agreed C. HS.{Lord Ernest Hives - Chair} | | Agreed. | ||