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).
Improvement in high-speed battery ignition for Spectre and Bentley models due to a new cam.
| Identifier | ExFiles\Box 163\7\ img235 | |
| Date | 2nd January 1934 | |
| WST r6420. see me Hs{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair} To [redacted] Copy to [redacted] Hs.{Lord Ernest Hives - Chair} High Speed Battery Ignition. Sg{Arthur F. Sidgreaves - MD}18/H2.1.34 SpectreCodename for Phantom III and Bentley. I have just been reading Hs{Lord Ernest Hives - Chair}/Wst.3/MA.29.12.33 and am very glad to see the big improvement effected by the new cam. I notice the report says that the former cam to LEC.3323 gave very poor high speed characteristics and it was found that it had been wrongly designed, and I am wondering whether there is anything sufficiently important about this to necessitate the alteration of present production. I should rather doubt it as I have not heard of any actual ignition troubles aixx other than the seizing up of the make and break, which of course was quite a different point. Sg.{Arthur F. Sidgreaves - MD} | ||