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).
Front end shake caused by loose rivets during a 50,000-mile test and the proposed solution of welding the frame.
| Identifier | ExFiles\Box 97\4\ scan0293 | |
| Date | 12th January 1939 | |
| To Sg.{Arthur F. Sidgreaves - MD} c. to Hs.{Lord Ernest Hives - Chair} c. to By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to RH.{R. Hollingworth} c. to Hx. c. to OWB. 400 B Rm.{William Robotham - Chief Engineer}10/JH.12.1.39. 50,000 Miles Test. Waller, who examined the car in Paris, agrees with Martindale that the front end shake complained of is likely to be due to the rivets working loose in the forward end of the frame. We experienced this on the bump test rig, and in consequence introduced some welding on the compression side of the frame. 8.B.V's. frame, being an early type, has not got this welding, but 9.B.V, 2.B.50, 3.B.50 and in fact all later cars have welding incorporated. We do not propose to bring this car back to Derby to investigate the problem as this would necessitate stopping the 50,000 miles endurance run. Later on in the test, however, it may be possible to have 8.B.V. frame welded in France and subsequently check over the effect of this modification on front end shake. Rm.{William Robotham - Chief Engineer} | ||