Comparing the torsional strength and weight of a Jaguar frame versus a plain box section frame.
| Identifier | ExFiles\Box 113\5\ scan0064 | |
| Date | 2nd June 1938 | |
| To By. {R.W. Bailey - Chief Engineer} from Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} c. Da. {Bernard Day - Chassis Design} c. Da {Bernard Day - Chassis Design} /Iv. 1610 also 107a Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} 6/MH. {M. Huckerby} 2.6.38. BOX SECTION FRAME. We have measured the torsional strength and weight of the Jaguar frame for the purpose of obtaining a comparison between a frame with a cruciform member, and a plain box section frame. The box section frame is 89% heavier, other things being equal. Figures are given in the attached report. Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} | ||
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).