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).
Problems with mud accumulation on car wings (fenders) and proposing design improvements.
Identifier | ExFiles\Box 18\2\ Scan037 | |
Date | 1st October 1928 guessed | |
contd :- -2- Again on 15-EX the lip was only carried half way round the front of the wing, and was narrowed down in section still further, so that it was absolutely futile as it got choked the first time the car went on the road. This is an important point because if mud gets blown off the leading edge of the wing it usually lands on the windscreen. We attach sketches of the satisfactory and unsatisfactory wings. The lip goes round the point of the tail on 10-EX. We think that the point of the wing tail should be left clear to allow a free run away for the mud. In any case if a lip is put here it gets choked up. We have 15-EX wings here as they came off the car in France, completely choked with mud. 10-EX wings are in service and still effective. We have treated the matter at some length because we believe that wings can be made effective and yet with much less wind resistance than the present standard product. We propose to experiment a little on our own when the weather gets worse. One point that should be watched is that the wing stays do not fill up the mud lips with large obstructions, this seems to be almost invariably the case at present. You will note that the new De Soto to Chrysler cars have our type of wing as standard. Hs{Lord Ernest Hives - Chair}/Bm. | ||