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).
Investigation into sparking plugs on Bentley cars, concluding the old plugs should be used up.
| Identifier | ExFiles\Box 142\3\ scan0238 | |
| Date | 16th June 1937 | |
| To By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} 1204 Rm.{William Robotham - Chief Engineer}16/AP.16.6.37 SPARKING PLUGS. By.3/G.14.6.37 Our investigations shew that the trouble was not severe on Bentleys. We think that the new plugs in due course will give just as much trouble through point burning. Hence, we consider the old plugs can with advantage be used up. GWH.{George W. Hancock - Head Chateauroux} is in agreement. Rm.{William Robotham - Chief Engineer} | ||