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).
The buffer clearance for new 25% stiffer rear springs.
| Identifier | ExFiles\Box 16\7\ Scan098 | |
| Date | 6th September 1928 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X7410 BY/HEB{H. Biraben}4/M.6.9.28. 25% STIFFER REAR SPRINGS. With reference to your memo. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG26.7.28, you state that with the new type 25% Stiffer Rear Springs with 1.400" Initial Camber, we should have 4.000" Buffer clearance. With this type of spring we find we obtain 3.650 Buffer clearance as on the Sports Chassis. Will you kindly inform me how you require this 4.000" clearance obtaining. I attach a print of List 11, showing the clearances we obtained on the Sports Chassis. BY/HEB.{H. Biraben} | ||