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).
Letter responding to a report about engine detonations, magneto vs battery ignition, and spark plugs.
| Identifier | ExFiles\Box 5a\2\ 02-page246 | |
| Date | 25th March 1930 | |
| Y 5840 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} W. Hancock, Hotel de France, Chateauroux, Indre, FRANCE. To GWH.{George W. Hancock - Head Chateauroux} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}1/WJ.25.3.30. With reference to your report of the 23rd.inst. We should like to know whether you are complaining of detonations on the magneto. We know that detonations of magneto will be excessive on the car but we are not interested in this particular feature because the magneto is only a stand-by ignition. We may have to drop our maximum speed by retarding the timing of the magneto but we should like to know whether your comments refer to battery ignition or not. Our tests shew us that the old type K.1 K.L.G. plugs are hopeless. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||