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).
Two separate incidents of balance weight failures on a Bentley unit and another engine in France.
| Identifier | ExFiles\Box 85\5\ scan0043 | |
| Date | 26th August 1933 | |
| X217 E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/MA.26.8.33. Whilst running an endurance test on a Bentley unit, No.6 balance weight came off. The balance weight fixing was not to the latest drawing shewn on LeC.3284 but was to scheme 1557. Almost simultaneously GWH.{George W. Hancock - Head Chateauroux} reports that a balance weight has come off his engine in France, on this occasion No.1 balance weight to LeC.3284. This is the first time we have had this form of failure. We hand you herewith the parts that failed in Derby. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||