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 an Autovac top in aluminium to save cost and weight.
| Identifier | ExFiles\Box 56\1\ Scan015 | |
| Date | 28th June 1930 | |
| RR 755 REVISED (10H) (DG 348 19-7-29) SM. 6/543. COMPLETED 8.9.30. X5510 STANDARDISATION of CHASSIS PARTS. Date 28.6.30 Description of Parts. AUTOVAC TOP IN ALUMINIUM. Origin. Saving in cost and weight. Experimental Test Report. This alteration will be incorporated with the larger drop valve giving greater efficiency. Road Test Report. running 10,000 miles on 24-EX. Fitted to 19-EX. [Stamped Text] 20/25 H.P. CHASSIS PHANTOM [Right side box] X No. 5510 7510 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. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 1-12-0 Cost of New Part. £ 1-8-0 Difference per Car. £ 0-4-0 Decrease [Handwritten] for either 40/50 or 20/25 Chassis Nos Signature from Cost Dept. that above is correct. GRH 19/30 G3/9/30- Cost of Parts in Works which will be scrapped if commenced on :- Series.........£......... Series.........£......... Series.........£......... [Approvals Table] INITIAL | DATE | REMARKS Sg. {Arthur F. Sidgreaves - MD} | 4.9.30 | agreed Sg. {Arthur F. Sidgreaves - MD} R. {Sir Henry Royce} | 2.7.30 | Agreed FHR. WOR. {Arthur Wormald - General Works Manager} | 1.7.30 | Agreed Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} | 1.7.30 | Agreed Rg. {Mr Rowledge} DA. {Bernard Day - Chassis Design} | 2.7.30 | Agreed Da. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} | 30.6.30 | Agreed By. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} | 30.6.30 | Agreed, if O.K. after 10,000 miles test. Could do with greater efficiency. EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} | 5.7.30 | Agreed AE. PN. {Mr Northey} | 2.7.30 | Agreed PN. {Mr Northey} CWB. | | Agreed C. HS. {Lord Ernest Hives - Chair} | | Agreed Hs. {Lord Ernest Hives - Chair} [Stamp] RECEIVED 4 SEP 1930 | ||