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 document for well base rims and 5 1/4' tyres to improve riding.
| Identifier | ExFiles\Box 172\1\ img086 | |
| Date | 4th May 1926 | |
| RR 755 (10M) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225 ORIGINAL COMPLETED 28.5.26 STANDARDISATION of CHASSIS PARTS. 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-11. Run 6000 miles on 9-G-111. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part: £16. 8. 9d Cost of New Part: £15. 11. 3d. Difference per Car: £ . 17. 6d. saving. Signature of Mr. De LOOZE that above is correct. LW/Rb.{R. Bowen} 26.5.26 [Across the middle of the page is a large green stamp: APPROVED CHASSIS] 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. Cost of Parts in Works which will be scrapped if commenced on:- Series ......£....... Series ......£....... Series ......£....... SIGNATURES DATE REMARKS MR. JOHNSON MR. B. JOHNSON 23.5.26 Agreed. B.Johnson. MR. ROYCE 15/5/26 Agreed FHR. MR. WORMALD 5.5.26 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 AE. MR. NORTHEY 13.5.26 Agreed. PN.{Mr Northey} MR. HIVES 27.5.26 Agreed. E.Hives. | ||