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).
Diagram and specifications for the Goshawk Stub Axle.
| Identifier | ExFiles\Box 49\4\ Scan188 | |
| Date | 1st August 1923 | |
| 44263 Aug. 1923 F. {Mr Friese} 51915. Goshawk Stub Axle. Angle of camber 2° Tilt of pivot 4° Total tilt of stub axle axis to pivot axis 6° | ||