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).
Extract from Mr. Hancock's report on vehicle 23-EX after 5,000 miles, concerning ignition wires and aluminium tubes.
| Identifier | ExFiles\Box 168\1\ img089 | |
| Date | 4th May 1930 | |
| X6020R 4.5.30. Extract from Mr.Hancock's report on 23-EX after 5,000 miles. IGNITION WIRES TO LOP. E.77671. ALUMINIUM IGNITION TUBES E 80411/12. TO SCHEME 1203. There does not appear to be any deterioration having taken place either in the tubes or the ignition wires. The aluminium tube on the exhaust side does away with the burning as previously experienced with the ebonite covering. | ||