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).
Design, aerodynamics, and production considerations for cycle-type wings on Bentley cars.
| Identifier | ExFiles\Box 159\2\ scan0003 | |
| Date | 15th July 1933 | |
| 1369 TO E.{Mr Elliott - Chief Engineer} from EV.{Ivan Evernden - coachwork} LID{A. J. Lidsey} EV{Ivan Evernden - coachwork}4/15.7.33. COPY TO Sd. WDR. Be. Hs.{Lord Ernest Hives - Chair} Ex. CYCLE TYPE WINGS. BENTLEY. The term cycle type wings when used in this memo is meant to refer to cycle type wings which are mounted on the axles and in the case of the front wings, turn with the wheels. We see that CX.{Major Len W. Cox - Advertising Manager} has suggested that we use these on some of the Open Cars because of their low wind resistance. We admit that with the present frontal aspect this type of front wing is the best we know of aerodynamically, and we are pretty sure that it will be the one used on the 100 M.P.H. Car. To make a fixing for the wingstays the stub axles have to be modified calling for a new forging. For the one special 100 M.P.H. car we could get a set made up by hand but if we are going to use them on production it is a different matter. We suggest that Sales will wish to make a decision on this matter so that the necessary stub axles can be prepared in time. The rear wings can be monted on the body as the bump is small and the wheels do not turn. We are going to test a set of Vanden Plas front wings in the wind tunnel. These are those wings which consist of a simple blade in line with the wheel, and have no inner valance. Sales might like to consider their use if they prove as good as we are told they are. EV.{Ivan Evernden - coachwork} | ||