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 wheels with 19' rims to reduce vehicle height.
| Identifier | ExFiles\Box 172\1\ img145 | |
| Date | 24th April 1929 | |
| RR 759 REVISED (10H) (D.C. 777-29-2-28) Mᵀ C.Lᵀ STANDARDISATION OF CHASSIS PARTS. Date 24.4.29 X No. 5810 / 3725 Drawing No. Part List Description of Parts. WHEELS WITH 19" RIMS. Origin. To reduce height of car. Experimental Test Report. The rims are built on to standard hubs. Road Test Report. Run 8000 miles on 12-G4. Run 2500 miles on 17-G3. When tyres are taken in account reduces axle ratio 4% approx. 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. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. £ Difference per Car. £ Cost of Parts in Works which will be scrapped if commenced on :- Series..........£......... Series..........£......... Series..........£......... Signature from Cost Dept. that above is correct. INITIAL DATE REMARKS RH{R. Hollingworth} SG.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} 24.5.29 aprvd P.N. CWB. HS.{Lord Ernest Hives - Chair} 24.4.29 Agreed. Hs.{Lord Ernest Hives - Chair} | ||