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).
Developments in suspension, steering, and engine heads.
| Identifier | ExFiles\Box 67a\2\ scan0030 | |
| Date | 30th September 1927 | |
| Y8410 To OY. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rml/LG30.9.27. FH+30 I am returning herewith your notes on Suspension which we have read with interest. Thank you very much for letting us have them. I am afraid we have never swung the 20 HP. car because we had an acute attack of aero engine development immediately after you left. We have tried a worm and nut with pressure feed to the inside of the worm MK to see what effect this has on sticking. The result was remarkably good but since the trouble does not now exist, it is not of very great interest. I am very glad to hear that you have had such success with your slightly altered helix angle; we have been running steerings on production without oil grooves in them and have obtained very good results so that at the moment we are thinking of permanently deleting them. We are getting some surprisingly good results from stiffer stronger rear springs for customers who drive fast with hydraulics and Hartfords at both the front and rear. At the moment we are springing a number of cars like this and if they prove uniformly successful, we will let you have the exact particulars. The main feature is that the 'pitching' is entirely eliminated. We are more and more convinced that this is the main cause of complaint with everybody except old ladies who don't go above 30 m.p.h. You will see that we think your front springs are excellent. The turbulent aluminium head has several advantages such as - improvement in spitting in the mkk silencer and no running after switching off. I hope that I will see you in America before very long. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||