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 well base rims and 5 1/4' tyres.
| Identifier | ExFiles\Box 42\1\ Scan063 | |
| Date | 4th May 1926 | |
| RR 755 (10H) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225 Y3809 COMPLETED 28.5.26 STANDARDISATION of CHASSIS PARTS. Date 4.5.26 X No. 3809 Description of Parts WELL BASE RIMS AND 5 1/4" TYRES. Origin. To improve riding. Experimental Test Report. The 20 HP. car is not so susceptible to high speed wobbles owing to lower maximum speed and less weight. It is safe to fit low pressure tyres to existing cars without hydraulic dampers. Road Test Report. Run 8500 miles on 10-G-111 Run 11,000 miles on 5- g-111 Run 6000 miles on 9-G-111. 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. £16. 8. 9. Cost of New Part. £15. 11. 3d. Difference per Car. £ 17. 6d. saving. Cost of Parts in Works which will be scrapped if commenced on:- Series.........£......... Series.........£......... Series.........£......... Signature of Mr. De LOOZE that above is correct. My/Rb.{R. Bowen} 27.5.26. SIGNATURES DATE REMARKS MR. JOHNSON MR. B. JOHNSON, 28.5.26, Agreed, B (crossed out) MR. ROYCE, 15.5.26, Agreed, FHR. MR. WORMALD, 6.5.26, Agreed, Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE, 7.5.26, Agreed, Rg.{Mr Rowledge} MR. DAY, 6.5.26, Agreed, Da.{Bernard Day - Chassis Design} MR. BAILEY, 3.5.26, Agreed, BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD, 4.5.26, Agreed, EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT, 15.5.26, Agreed, E.{Mr Elliott - Chief Engineer} MR. NORTHEY, 13.5.26, Agreed, PN{Mr Northey} MR. HIVES, 27.5.26, Agreed, E.Hives. | ||