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).
Ignition wire tubing options for the Phantom II, comparing metal and bakelite tubes.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan202 | |
| Date | 12th September 1929 | |
| ORIGINAL To R.{Sir Henry Royce} from EFC. c. Sg.{Arthur F. Sidgreaves - MD} c. EVr EFC1/AD9.12.29. PHANTOM II IGNITION WIRE TUBING. X7015 In connection with the suggested use of H.T. wires with varnished cambric covering referred to in our concurrent report EFC4/AD6.12.29, we suggest for use with these wires metal ignition wire tubes of polished aluminium or cadmium plated steel. Now that magneto low speed sparking is so much better we think little objection remains to the use of metal tubes for the magneto wires. An alternative suggestion would be a tube such as described above for the battery ignition side, and one of bakelite for the magneto ignition side. We recommend that we fit up two experimental cars, one with each alternative proposal. We should be pleased to have your views. EFC. | ||