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).
Design changes to axle tubes and ratios, referencing schemes 503 and 339.
| Identifier | ExFiles\Box 74\4\ scan0049 | |
| Date | 30th June 1920 | |
| 28 Contd. -2- E5/G30.6.20. resist the torque that would be imposed by screwing on a nut with a tight thread. The latter feature to prevent turning, will resist any torque that is likely to be imposed, but is not always in position to prevent the bolts from turning, although it will be there when the nuts holding on the axle tube are tightend up. (5) The heel on the flanges of the axle tubes should be still further extended by about .100" on the radius, gashes being arranged as on N. scheme 503, to accommodate the bevel pinion bearing cap bolts. Referring to the axle ratio, it is not likely now that a larger ratio than 4 to 1 will be required, since the capacity of the "Vulture" engine will be approximately equal to that of the "Buzzard" instead of being smaller as formerly. Referring to the bell-mouth axle tube shewn on N.scheme 503, kindly note that Mr. Royce proposes to abandon this. Would you please proceed withthe dtail work in connection with N. scheme 339, in accordance with Mr. Royce's wishes, without any further reference. E.{Mr Elliott - Chief Engineer} R.R. 285A (100 Tr.{Capt. F. W. Turner - Finance} S.C. 648. 19-2-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2618 | ||