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).
Request for torsional deflection data on the Goshawk 11 crankshaft and details on its spring drive.
| Identifier | ExFiles\Box 74\3\ scan0230 | |
| Date | 9th September 1921 | |
| Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to BY.{R.W. Bailey - Chief Engineer} X4221 E5/G16.9.21. X.4222 - RE GOSHAWK 11. CRANKSHAFT. X.4221. Would you kindly note Mr. Royce would like you to load up the Goshawk 11. crankshaft torsionally with its full normal torque of 1450 lbs. incs., and tell us how much it deflects. "e want this information to determine the movement we shall allow in the new spring drive. We should also like to have the exact particulars of the driving springs you are now using for Goshawk 11. spring drives, and also exact particulars of the damping springs, and how many of these latter. The design of the new spring drive is practically ready, and we expect to send it at the beginning of next week. E.{Mr Elliott - Chief Engineer} | ||