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 and potential stress points of the Goshawk 11 rear springs.
| Identifier | ExFiles\Box 49\3\ Scan046 | |
| Date | 22th June 1921 | |
| To BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to Hs.{Lord Ernest Hives - Chair} c. to Da.{Bernard Day - Chassis Design} X4261- R8/G22.6.21. X4262- RE GOSHAWK 11 REAR SPRINGS. X4261 Thank you for your remarks with reference to Goshawk 11 rear springs, I think we will keep the arrangement we have but I rather intended that the plate should be parallel in thickness, and have horns to locate the bolts. With this arrangement it can be made the same thickness and temper of the thinnest spring leaf. You will notice that the plate is not very liable to break because it is only subject to stress in the middle during the rebound. We presume, however, you thought that it might break where it is grooved across, just under the bolt; this we agree. R.{Sir Henry Royce} | ||