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).
Request to test the maximum sparking gap for a 20/25 engine with screened ignition in a light tank.
| Identifier | ExFiles\Box 163\2\ img008 | |
| Date | 18th August 1932 | |
| WST 86008 To Wst. from E.{Mr Elliott - Chief Engineer} E.2/HP.18.8.32. c. Mr. By R.{Sir Henry Royce} Hs{Lord Ernest Hives - Chair}/Wst. re 20/25 Engine in Light Tank - Screened Ignition. We should be glad if you would make a test to determine what maximum sparking gap can be used with screened ignition on a 20/25 RR. engine. Hs{Lord Ernest Hives - Chair}/Wst will supply the necessary screened ignition wiring, and the screening for the distributor and coil. E.{Mr Elliott - Chief Engineer} [STAMP] RECEIVED 19 AUG 1932 | ||