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).
List of experiments to be conducted on the Spectre gearbox rig.
| Identifier | ExFiles\Box 94\1\ scan0117 | |
| Date | 2nd May 1935 | |
| To Hs{Lord Ernest Hives - Chair}/W.Bell: +328 Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}10/KW.2.5.35. SpectreCodename for Phantom III Gearbox Rig Experiments. Box drive at front end. (1) Power loss Top Gear 750 r.p.m. Motorine C. 40°C. (2) " " Neutral, 3rd motion shaft stationary, as above. (3) Curve of effort on gear lever (up to 40 lbs.) to disengage 1st gear against 3rd motion shaft torque, 1st motion shaft held stationary. (4) Torque to turn 1st motion shaft in 1st gear at all possible speeds, lubricant Motorine C. supplied by F.Dodd, as cold as possible. Whole test to be run off quickly, to prevent heating of the oil. Note temperature of oil during test. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||