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).
Engine weight reduction for the Spectre model, referencing pieces made in magnesium.
| Identifier | ExFiles\Box 96\4\ scan0008 | |
| Date | 29th December 1934 | |
| To Hs.{Lord Ernest Hives - Chair} from E/JNR.{Charles L. Jenner} c. BHS. Rm{William Robotham - Chief Engineer} x 358 E/JNR.{Charles L. Jenner}1/HP.29.12.34. SpectreCodename for Phantom III - Engine Weight Reduction. With reference to the pieces made in magnesium, may we refer you to our memo E/JNR.{Charles L. Jenner}3/HP.4.7.34. E/JNR.{Charles L. Jenner} c| | ||