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).
To G.W. Hancock regarding the dispatch of Champion LB.9 plugs for testing on a Bentley.
| Identifier | ExFiles\Box 162\3\ img051 | |
| Date | 9th January 1937 | |
| 6000 To G.W.Hancock, Hotel de France, Chateauroux, Indre, FRANCE. Rm{William Robotham - Chief Engineer}/Wst.10/JH.9.1.37. BENTLEY PLUGS. We are sending you 7 Champion LB.9 plugs for test on the Bentley. These plugs have a grade higher heat factor than the LB.10 plug which ran too cool. We shall be pleased to hear the result and your comments on same. Rm{William Robotham - Chief Engineer}/Wst. | ||