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).
Required modification to the damper governor casing for the Spectre's speedometer drive.
| Identifier | ExFiles\Box 4\1\ 01-page058 | |
| Date | 2nd June 1934 | |
| x4694 To BT.{Capt. J. S. Burt - Engineer} from HDY.{William Hardy} c. Hives-Ry.Hs.{Lord Ernest Hives - Chair}Fev.LWB. HDY.{William Hardy}2/HP.2.6.34. Speedometer & Damper Governor Drive. -------------------------------- SpectreCodename for Phantom III. N. Sch.4072 herewith shows the speedometer drive for the all helical box. The damper governor casing requires an increase in the length of the neck between the casing and the flange as compared with the J.J. casing. HDY.{William Hardy} | ||