Chassis alteration number 12, discussing the stiffness of side steering tube springs and the 9' pendulum lever.
| Identifier | ExFiles\Box 154\3\ scan0076 | |
| Date | 20th June 1929 | |
| Sg. {Arthur F. Sidgreaves - MD} X3682 c. Hs. {Lord Ernest Hives - Chair} BY1/G.20.6.29. RRAI. REPORT ON CHASSIS ALTERATION NO. 12 STEERING. SECTIONS 7050, 7070 etc. 9" PENDULUM LEVER. --------------------------------- Referring to Sg {Arthur F. Sidgreaves - MD} 12/E11.6.29. and OY1. of the 31st ult. I have gone very carefully through the whole of the points raised in OY.1.31.5.29., and in addition have discussed certain aspects of the matter with the Experimental Department, and we are satisfied that the alteration report in question simply deals with the American application of the steering position, as it has been demonstrated in our Experimental Department. We are quite in agreement with the views put forward by OY. in regard to the stiffness of the side steering tube springs. The particular stiffness adopted must be one which will suit their conditions, and will be the best compromise between "spongyness" on the one hand, and high speed steering wobbles on the other. If very stiff springs are used in the side steering then there is a risk of high speed wobbles. On the other hand if light springs are used you get an easy steering free from joggles on the steering wheel but spongy, with poor selectivity. OY's compromise seems to be quite a safe one. BY. {R.W. Bailey - Chief Engineer} | ||
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).