Comparative table of stiffness and inertia properties for various engine models.
| Identifier | ExFiles\Box 65\4\ scan0199 | |
| Date | 19th May 1927 guessed | |
| A. {Mr Adams} B. C. D. {John DeLooze - Company Secretary} E. {Mr Elliott - Chief Engineer} F. {Mr Friese} G. {Mr Griffiths - Chief Accountant / Mr Gnapp} H. {Arthur M. Hanbury - Head Complaints} I. J. {Mr Johnson W.M.} K G-1 14,750 31.650* .03895 .794* 1.995* 1.250* 1.33 2.93% .0153 38,900 G-11 16,220 30.975* .0419 .8084* 1.995* 1.250* 1.33 3.15% .01796 41,600 Phantom. 43,500 40.600* .147 1.107* 2.6245* 1.50* 4.165 3.52% .0356 147,000 Lorraine. 28,350 24.295* .0575 .875* 1.890* .80* 1.211 4.75% .0320 57,500 Column. Heading. A. {Mr Adams} Engine. B. Stiffness ; lbs/ft/radian. C. length ; ins. D. {John DeLooze - Company Secretary} Polar M. {Mr Moon / Mr Moore} of I. calc. from B ; ins4 E. {Mr Elliott - Chief Engineer} Dia. of plain shaft having same stiffness ; ins. F. {Mr Friese} Dia. of journal ; ins. G. {Mr Griffiths - Chief Accountant / Mr Gnapp} Bore of journals ; ins. H. {Arthur M. Hanbury - Head Complaints} Polar M. {Mr Moon / Mr Moore} of I. of journals - ins4 I. D. {John DeLooze - Company Secretary} expressed as %age of H. {Arthur M. Hanbury - Head Complaints} J. {Mr Johnson W.M.} Distributed inertia per ft. Slugs/ft2. K. {Mr Kilner} Stiffness per ft. lbs/ft/radian. Hs {Lord Ernest Hives - Chair} /Tsn. X8010 | ||
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).