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).
Requesting experiments on the Goshawk ignition system's stabilite coil and its ability to start using dry batteries.
| Identifier | ExFiles\Box 45\4\ Scan107 | |
| Date | 30th November 1922 | |
| TO EFG. FROM R.{Sir Henry Royce} X4079 5 R2/M30.11.22. C. to Cd. C. to Wont. C. to Sp{Mr Spinney} c. to Hs.{Lord Ernest Hives - Chair}✓ c. to PM. X2273 GOSHAWK IGNITION. X3485 X4079 P-353 I should like you to find at what temperature the stabilite coil works when fixed in the standard position on top of the valve gear cover, but standing on a heat insulated base and fixed by bolts which are heat and electrically insulated from the engine. Also will you make another experiment to find out if the Goshawk ignition will work on dry batteries for the short period of time necessary for starting the engine. In the event of the adoption of a vibrator regulator for the Goshawk dynamo which we know would continue to run the engine once we were able to get it started, we should not be stalled absolutely by the break-down of the main battery if we had a dry battery as a stand-by.{R.W. Bailey - Chief Engineer} (We might carry a few of those that became active when water is put in them.) [Stamp: RECD DEC 8 1922 ANS'D] R.{Sir Henry Royce} | ||