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).
Modifications to the axle tube and rear wheel driver for the 'Goshawk 11' project.
| Identifier | ExFiles\Box 49\1\ Scan263 | |
| Date | 29th January 1921 | |
| X4256 To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to Hs.{Lord Ernest Hives - Chair} c. to By.{R.W. Bailey - Chief Engineer} c. to EFC. X. 4256. RE AXLE TUBE AND REAR WHEEL DRIVER - "GOSHAWK 11" Referring to N. scheme 712, the modulus and stress curves now require modifying to include the extra parallel portion of the axle tube required for the brake operating gear. Referring to the end of the axle tube carrying the rear wheel hubs, Mr. Royce thinks this portion might be bored through parallel to a diameter equal to the large end of the internal taper. He further remarks that the rear wheel driver he had seen on the axle arrangement, the hub of which projects into this part of the axle tube, appeared to him to be too weak and required thickening up all over. Regarding the suggestion to use a parallel axle tube, Mr. Royce does not consider this to be an improvement, as he points out that the axle casing and tubes should be stable enough to resist deflection, which might be caused by tightening up the tie rod under the axle to an excessive degree. E.{Mr Elliott - Chief Engineer} | ||