Requesting design modifications to the suspension system, including shock dampers, front suspension triangles, and torque arm for weight reduction.
| Identifier | ExFiles\Box 100\1\ scan0205 | |
| Date | 2nd November 1938 | |
| 446. By {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} from Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} Rm {William Robotham - Chief Engineer} /AFM {Anthony F. Martindale} 2/R.2.11.38. B.III SUSPENSION. The rear shock damper link rubber connections (Delco type) fail easily. Will you please produce drawings of a replacement rubber connection 50% larger (linear increase) and instruct two sets of metal parts and 6 sets of rubbers. The backing washers should be stronger. Will you please see if you can design a pressed steel upper triangle for the front suspension. This is a lightening scheme. The present four levers weigh 1 lb. 12 ozs. each, and the distance pieces weigh 8 ozs. each. It is necessary for the new design to be lighter than this by about 40%. One pair of triangles for the bump chassis should be instructed. Will you also mark up a drawing of a torque arm with a series of holes behind the main steering tube hole, and instruct one pair to be drilled like this and tested on the bump chassis. An estimate of the weight saved should be made. Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} | ||
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).