Recommending the continued use of the 831 LR sparking plug for the 25/30 HP chassis due to reliability and cost.
| Identifier | ExFiles\Box 162\3\ img025 | |
| Date | 13th October 1936 | |
| To By. {R.W. Bailey - Chief Engineer} c. to Mx. {John H Maddocks - Chief Proving Officer} c. to Roy. {Mr H. Royce - Buyer} 76000 HS {Lord Ernest Hives - Chair} /Wst.2/JH.13.10.36. 25/30 HP. Chassis Sparking Plugs. With reference to your By {R.W. Bailey - Chief Engineer} /Cgh. {W Clough} 4/G.7.5.36. in view of the fact that no trouble has been experienced with the 831 LR. {Mr Ellor} plug we see no reason for changing over to a washer construction plug like the C50 now fitted to Bentley chassis. Furthermore such a change-over would entail an increase in cost of 16/- per engine. We therefore recommend that you continue using the 831 LR. {Mr Ellor} HS {Lord Ernest Hives - Chair} /Wst. | ||
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).