Standardisation of chassis parts for the 20 HP, specifically 20' rims and 6' tyres.
| Identifier | ExFiles\Box 172\1\ img130 | |
| Date | 24th July 1928 | |
| RR 755 REVISED (10H) (D.C. 777-29-2-28) Mc C.LTD COMPLETED 27.10.28 STANDARDISATION of CHASSIS PARTS. Date 24.7.28 No. 527 (5820 crossed out) Drawing No. Part List Description of Parts: 20 HP. 20" RIMS AND 6" TYRES. Origin: To give better riding on the 20 HP. Experimental Test Report: We have run 21" rims with 6" tyres and 19" rims with 6" tyres and have run into no trouble. Road Test Report: We shall have done 10,000 miles before any have been delivered to customers as we can run an existing car. [Action Box, B is ticked with an 'X'] A Scrap and replace on all 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: £2.17.6 Cost of New Part: £3.0.3 Difference per Car: £0.2.9 Applies to the first 130 chassis only. Subsequent chassis difference will be negligible. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£............ Series.........£............ Series.........£............ Signature from Cost Dept. that above is correct: G {Mr Griffiths - Chief Accountant / Mr Gnapp} /Rb. {R. Bowen} 22.10.28. Wor {Arthur Wormald - General Works Manager} [Approval Table] INITIAL | DATE | REMARKS BJ. | 25.10.28 | Agreed. BJ. R. {Sir Henry Royce} | 27/7/28 | Agreed. JMR. This matter is too urgent to await a long months of trial. They are not at all liked in the works, they are hardly past the chassis and they are hand welded & found sound. We shall have this for present standard & the smaller one will be tried for Series B. WOR. {Arthur Wormald - General Works Manager} | 26.7.28 | Agreed. Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} | 26.7.28 | Agreed. RG. {Mr Rowledge} DA. {Bernard Day - Chassis Design} | 26.7.28 | Agreed. DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} | 24.7.28 | Agreed. BY. {R.W. Bailey - Chief Engineer} (Sheet returned 21.9.28) BY {R.W. Bailey - Chief Engineer} /Mtn. EP. {G. Eric Platford - Chief Quality Engineer} | 27.7.28 | Agreed. EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} | 27/7/28 | Agreed A. {Mr Adams} Clark. PN. {Mr Northey} | 8.8.28 | Agreed. PN. {Mr Northey} CWB. | 26.7.28 | Agreed. CWB. Rear spare wheel carrying arrangements must be amended to suit. HS. {Lord Ernest Hives - Chair} | 25.7.28 | Agreed. HS. {Lord Ernest Hives - Chair} [Green stamp text]: 20. H.P. CHASSIS ORIGINAL | ||
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).