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 hydraulic dampers on the front of the 20 HP chassis.
| Identifier | ExFiles\Box 105\3\ scan0012 | |
| Date | 18th May 1926 | |
| RR 755 (10H) (DB{Donald Bastow - Suspensions}130 12-9-24) MS 301225 Hs{Lord Ernest Hives - Chair} X5520 COMPLETED 16.6.26 STANDARDISATION of CHASSIS PARTS. Date 18.5.26 Description of Parts: HYDRAULIC DAMPERS ON FRONT OF 20 HP. Origin: To reduce wobbles and improve riding. Experimental Test Report. Tests have proved that hydraulic dampers are the most effective cure for high speed wobbles. The dampers have been run on the bumper for 120 hrs. They are more reliable than the present standard friction dampers. Road Test Report. Run 10,000 miles in France on 10-G-9. The bolt which failed in France has been strengthened. Fitted to 9-G-111. Weight of Old Part. Cost of Old Part. £ 4. 12. 4d. Weight of New Part. Cost of New Part. £ 15. 16. 6d. Difference per Car. Difference per Car. £ 11. 4. 2d increase. Signature of Mr. De LOOZE that above is correct. My/Rb.{R. Bowen} 16.6.26 Side Box: X No. 235 Drawing No. 5 Part List A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. [X] 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 Table: SIGNATURES, DATE, REMARKS MR. JOHNSON (c.W.B), 19.5.26, Agreed. CWB. MR. B. JOHNSON, 16.6.26, agreed MR. ROYCE, 21.5.26, Agreed. FHR. MR. WORMALD, 19.5.26, Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE, 18.5.26, Agreed. Rg.{Mr Rowledge} MR. DAY, 20.5.26, Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY, 19.5.26, Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD, 19.5.26, Agreed - see comments on Phantom. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT, 21.5.26, Agreed. E.{Mr Elliott - Chief Engineer} MR. NORTHEY, 20.5.26, Agreed. PN.{Mr Northey} MR. HIVES, 18.5.26, Agreed. E.Hives. STAMP: 20. H.P. CHASSIS | ||