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).
Production of a forged radius arm for the Bentley III front suspension, including a suggestion to reduce weight.
| Identifier | ExFiles\Box 100\1\ scan0025 | |
| Date | 16th July 1937 | |
| 200a 446 TO:- BY from E/Ev.{Ivan Evernden - coachwork} E/Ev.{Ivan Evernden - coachwork}1/JH - 16-7-37. Copies to Ds. Rm.{William Robotham - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} RADIUS ARM FRONT SUSPENSION BENTLEY III At the request of the Experimental Department, and in view of the difficulty which may be experienced in obtaining the built up/sheet metal radius arm in in this country, we are sending herewith LeC:-5786, showing the member produced as a forging. The strength at any vertical cross section in bending (both vertical and transverse) is approximately equal to that of the box section member. If it is thought possible to reduce the web thickness below the dimension of .150" as shown, without embarrassing the forging, we suggest that we should do so, at the same time increasing the thickness of the flanges to maintain the same modulus of section for bending in both planes. This would reduce the weight. EV.{Ivan Evernden - coachwork} LeC's-5786 ATTACHED. | ||