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).
Requesting further data on steering efficiency, including reversibility figures for the Goshawk type and other modern steering nuts.
| Identifier | ExFiles\Box 106\3\ scan0013 | |
| Date | 24th July 1925 | |
| Y 5230 To Hs.{Lord Ernest Hives - Chair} from DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}5/M24.7.25. STEERING EFFICIENCY. X. 8430 X. 5430 We presume that the nut and screw efficiency shewn on page 2. of Hs{Lord Ernest Hives - Chair}4/LG21.7.25. is that obtained by pulling at the spring balance with a steady motion, so as to lift the weight. It would be very interesting to us to have a reading of the efficiency in the opposite direction, which would give an idea of the moment of reversibility. It would also be of interest to us to have these figures on the other type of steering nut, namely, the Goshawk type, of which we gave you a scheme some time ago. Presumably also the figures will be given for the more modern big dia. worm, swivelling nuts, etc., as soon as they are available. DA.{Bernard Day - Chassis Design} | ||