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).
Road tests of Woodhead and Firths car springs in France.
| Identifier | ExFiles\Box 72\3\ scan0190 | |
| Date | 27th October 1924 | |
| R.R. 40SA (20H) (D.A. 652 20-3-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X9410 REF: HS{Lord Ernest Hives - Chair}5/LG27.10.24. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. BJ. c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} ROAD TESTS. TESTS IN FRANCE. X9941 X9410 The car fitted with the 20% stiffer Woodhead latest springs has completed 8,500 miles without any spring failures. We anticipate that the 10,000 miles test will be completed on Wednesday the 29th.inst. 9-PK car which is running the 10,000 miles test has previously run 10,000 miles without having much repair work done. It will be necessary, before it starts running again for certain work to be done on the car especially on the body-work which is dropping to pieces. There is another car in France now (98-NK open car) which has started running with Firths springs 12½% stiffer fitted. Carried on that car as spares is a pair of Woodhead 12½% stiffer springs. It would appear that as the Firths springs are not giving the desired results on the bumping tests, we should take the Firths springs off 98-NK and fit the Woodheads and so get a test completed with the 12½% Woodhead springs. 9-PK car, when it has been done up, could start on tests with Firths 12½% springs. Hs.{Lord Ernest Hives - Chair} | ||