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).
Two design schemes, 657 and 670, for the Goshawk steering system, comparing strength, dimensions, and cost.
| Identifier | ExFiles\Box 49\4\ Scan220 | |
| Date | 1st December 1920 | |
| To R from DA. {Bernard Day - Chassis Design} Copy to BN. {W.O. Bentley / Mr Barrington} Copy to EFC. {E. Fowler Clarke - Electrical Engineer} X.3520 DA {Bernard Day - Chassis Design} 4/CB9-12-20. RE GOSHAWK STEERING. ----------------- We send herewith a print of "N" Scheme 657 shewing the steering box shaft built up with taper serrations on the inside lever. A certain amount of side play appears to be needed between the nut and the cheeks of the levers in order to let the taper serrations come home. We also make a suggestion on "N" Scheme 670 of a lever made from two stampings in which the bolts are carried out at a much bigger radius, and the two halves are spigotted together. It appears to us to be much stronger than the present Goshawk type lever, and also more rigid than any of the proposals for making one of the levers loose. It does, however, increase the dimensions of the box somewhat though not necessarily as much as is shewn on this scheme, as the distance between the centre of the steering shaft and the nut is larger than is perhaps necessary. It is probable it would be looked upon as being rather expensive. DA. {Bernard Day - Chassis Design} EFC {E. Fowler Clarke - Electrical Engineer} DEC 14 RECEIVED. | ||