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).
Alternative ignition wire tubing materials, including metal and bakelite, for the Phantom II.
| Identifier | ExFiles\Box 52\1\ Scan135 | |
| Date | 9th December 1929 | |
| To R. {Sir Henry Royce} from EFC. {E. Fowler Clarke - Electrical Engineer} c. Sg. {Arthur F. Sidgreaves - MD} c. Ev. {Ivan Evernden - coachwork} X4473. EFC {E. Fowler Clarke - Electrical Engineer} 1/AD9.12.29. X.6020. PHANTOM II IGNITION WIRE TUBING X.3714. X.6009. X.4473. In connection with the suggested use of H.T. wires with varnished cambric covering referred to in our concurrent report EFC {E. Fowler Clarke - Electrical Engineer} 4/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. {E. Fowler Clarke - Electrical Engineer} | ||