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).
Altered method of rear springing for four specific cars.
Identifier | ExFiles\Box 47\2\ Scan016 | |
Date | 1st October 1927 | |
To BY.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X4117 Hs{Lord Ernest Hives - Chair}/Rml/LG1.10.27. LG40 X4117 ALTERED METHOD OF REAR SPRINGING. We have four cars which we wish to spring at the rear by the method outlined in our Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG30.9.27. For all except Kruse's car we should like to use your 25% stiffer spring with altered initial camber. For Kruse's car we should like to use a standard stronger spring with altered initial camber to reproduce exactly the results that have given such satisfaction on 117-MC and 10-EX cars. | Car and Chassis No. | Total sprung rear wt. allowed for. | Poundage and type of spring required. | | :--- | :--- | :--- | | Capt. Kruse. 38-TC. | 2890 lbs. | 2 std. springs of 2675 and 2775 lbs. with their initial camber altered to 1.4". | | Sir John Latta. 82-LC. | 3060 lbs. | 25% stiffer type spring with 1.4" free camber. Rating. N.S. 475 lbs/1" O.S. 485 lbs/1" | | London Trials car. | 3000 lbs. | 25% stiffer type spring with 1.4" initial camber. Rating. N.S. 476 lbs/1" O.S. 480 lbs/1" | | Experimental car. 8-EX. | 3030 lbs. | 25% stiffer type spring, with 1.4" positive initial camber. Rating. N.S. 470 lbs/1" O.S. 480 lbs/1" | Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||