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 failure of front suspension torque arm bolts on the Bentley III & 50 and a request to increase their diameter.
| Identifier | ExFiles\Box 100\1\ scan0128 | |
| Date | 26th April 1938 | |
| To Da.{Bernard Day - Chassis Design} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} c. By.{R.W. Bailey - Chief Engineer} c. HFS. 446 also 840 Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}10/MM.26.4.38. BENTLEY III & 50 FRONT SUSPENSION. The bolts holding the torque arm ball joint casting to the frame fail on the bump rig periodically (one goes every 12 hours or so). The last one failed while the rear was being bumped. These bolts are now 0.3125" dia. Will you please instruct them 0.375" dia. in future. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||