Correction regarding the torsional stiffness of the Hispano frame compared to the 40/50 model in relation to high-speed wobbles.
| Identifier | ExFiles\Box 22\1\ Scan289 | |
| Date | 11th July 1927 | |
| To DA {Bernard Day - Chassis Design} : from Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} F4214 Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 3/LG11.7.27. 4457. HIGH SPEED WOBBLES. In our Hs {Lord Ernest Hives - Chair} /Rnl/LG14.6.27. page 3, we stated that the Hispano frame is weaker in torsion than the 40/50. This is incorrect. It is obvious from the curve of frame deflection that the Hispano is stiffer than the 40/50 HP. We attribute the stiffness to the engine mounting. Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} | ||
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).