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).
Road test results for an ignition governor, recommending a new spring and restricted auto advance.
| Identifier | ExFiles\Box 3\4\ 04-page290 | |
| Date | 30th March 1933 | |
| TO R.{Sir Henry Royce} from Ha/Rn.{Mr Robinson} C. to By.{R.W. Bailey - Chief Engineer} Ha/Rn.{Mr Robinson}2/KT.30.3.33. We have now tested out on the road the ignition governor to E.50880 modified to LeC.3476, governor spring Ex.11175. We find that this spring is approx. right for detonation, and we recommend that it should be used for the first fifteen cars. We recommend that the auto. advance should be restricted to 19º on the flywheel though the full 23º as used at present does not give us detonation at the higher speeds. Ha/Rn.{Mr Robinson} LEC3522 | ||