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).
Issue of radiator wing movement and frame 'jellying' on the Phantom II model and proposed solutions.
| Identifier | ExFiles\Box 28\5\ Scan094 | |
| Date | 18th August 1932 | |
| Y457 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c. By.{R.W. Bailey - Chief Engineer} Hdy.{William Hardy} Hs.{Lord Ernest Hives - Chair}5/MA.18.8.32. Y750 Y780 P.II RADIATOR WING MOVEMENT AND FRAME JELLYING. This complaint is always with us, in fact some of the completed cars are distinctly bad in this respect. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} suggests the scheme of mounting the radiator on the engine in order to increase the inertia of the engine so that the frame dampers can be made much more effective. We have been running a car for some time with this arrangement and it has worked satisfactorily. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} recently repeated the test in France on a car which was exceptionally bad for this fault. Attached herewith is his report and we are satisfied that we ought to prepare a design of this arrangement. There is a very interesting article in S.A.E. Journal August 1932 on the complaint by one of the Packard engineers. They went into the job very thoroughly and made several cars with abnormally stiff frames but obtained no definite improvement. Their final scheme was the dumbells incorporated on the front damper, but they remark that the complete solution has by no means been reached particularly in the case of the larger heavier cars. All our efforts so far in making the frame stiffer has not produced any improvement. From all the information we have collected so far, we consider our scheme of using the inertia of the engine in connection with frame dampers is the most hopeful way of reducing this fault. Fixing the radiator to the engine improves this scheme considerably. Hs{Lord Ernest Hives - Chair}‡ | ||