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).
Results of a 10,000-mile test on two experimental Spectre steering cams.
| Identifier | ExFiles\Box 91\3\ scan0075 | |
| Date | 13th August 1935 | |
| X300a 2 To EHC. HS{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}10/KW.13.8.35. Marles Steering on SpectreCodename for Phantom III II - 10,000 Miles Test. We have examined the working of the two experimental SpectreCodename for Phantom III steering cams with zero and 0.002" of crowning respectively, and as a result we wish to have the 0.002 cam fitted to SpectreCodename for Phantom III II. Will you please build up SpectreCodename for Phantom III II steering with this cam. HS{Lord Ernest Hives - Chair}/F.J.Hardy. | ||