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).
The operation of and recommendations for the Remy battery ignition system on an aero engine.
| Identifier | ExFiles\Box 52\3\ Scan242 | |
| Date | 17th October 1917 | |
| X 2814 Extract from Eh3/LG17.10.17 X.3173 - BATTERY IGNITION FOR AERO ENGINES X.3199 X.2754. X.682. X.2814. We find on 7 CA fitted with the Remy ignition, that we can start quite easily by switching on and then moving the contact breaker. We can get a ½" spark at the distributor by moving the advance lever at a reasonable rate. On the six cylinder engine we have to use a long range on the retard of the battery ignition so as to be sure of getting the contact breaker in a favourable position when the engine is stopped. Increasing the range to obtain the starting, spoils the ignition being synchronised with the magneto We find that a Remy ignition requires practically the same range of advance as a magneto. We recommend that the control of the battery and magneto advance should be arranged so that they work together, but that it should be possible to retard the battery more. Being able to retard the battery ignition more would also enable us to get a late spark when the contact points were broken by retarding the lever, this would allow us to start up after the propeller had been turned round by hand. The extra range on the battery ignition would be sufficient to always be certain of breaking the contact points on one of the ignition sets. W.W. 200-1000 2-17-W & S Ld. E 1469 | ||