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).
Page describing the characteristics of the ignition advance hand control at different speeds.
| Identifier | ExFiles\Box 65\1\ scan0184 | |
| Date | 5th October 1926 guessed | |
| contd :- -9- On the road, the characteristics of the ignition advance is such that full advance of the hand control should be used at low speeds. This will give full power and a smooth pick-up. At high speeds, on the other hand, it will be found that the hand control can be retarded appreciably without loss in power. This is due, as in the 20 HP., to the mechanical propensities in the governor itself. A simple method of checking the range of hand control on the distributor is by means of a lever attached to the distributor tower and a fixed quadrant. This obviates the necessity for continual reference to the flywheel. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||