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, specifically a revised bonnet with concealed hinges.
| Identifier | ExFiles\Box 171\1\ img244 | |
| Date | 13th February 1931 | |
| RR 755 (10M) (3-7-30) BM. 6/2571. ORIGINAL. COMPLETED 29.4.31. STANDARDISATION of CHASSIS PARTS. Description of Parts. Revised Bonnet overhanging dash and concealed bonnet hinges. Origin. To avoid two broken lines, also general appearance. Experimental Test Report. Fitted to Park Ward body on 27-EX. Gives improved appearance of bonnet. The concealed bonnet hinges prevents breaking up of the paint work and also improves appearance. Road Test Report. Fitted to 27-EX and ran 1,000 miles. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ - 5s. 7d. Cost of New Part. £ - 16s. 9d. Difference per Car. £ - 11s. 2d. Increase. Signature from Cost Dept. that above is correct G/Rb.{R. Bowen}24.4.31. G.27.4.31. Wor.{Arthur Wormald - General Works Manager} Right-hand box: X No. 7260 Drawing N. sch No. 3126 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..........£.......... Approval Table: INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 28.4.31. | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 18/2/31 | Agreed R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 18.2.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 16.2.31. | Agreed C. RG.{Mr Rowledge} | 26.2.31. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 16.2.31. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 16.2.31. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 17.2.31. | Agreed - if some safety device to avoid damage to hinges by opening too far. One bonnet already damaged by coachbuilders. E.{Mr Elliott - Chief Engineer} | 16.2.31. | Agreed AE. PN.{Mr Northey} | 16.2.31. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||