WE publish this month a most important paper by MR. IRVING, giving the results of recent work done at the National Physical Laboratory, on the aerodynamic characteristics of tapered wings. This follows on the now famous lecture on the subject delivered by DR. LACHMANN before the Royal Aeronautical Society on October 8th last year. Possibly no paper read before the Society, or elsewhere, in recent years has roused such a storm of controversy. The time available for discussion on the evening of the meeting proving quite inadequate, it was continued at a later date in the library of the Society. Even that adjourned discussion by no means exhausted the argument, and the controversy has been continued with increasing acrimony in other quarters.
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