The Estimation of Performance: An Account of a Practical Method by General Curves which has been Proved Accurate Available to Purchase

THE performance of an aeroplane is largely determined by certain general characteristics—such, for instance, as its power and surface loadings, etc.—from a knowledge of which an approximate estimate of its performance can be made. Such an estimate is generally effected by the use of a “general curve” connecting the performance with the determining characteristics.. On this curve are represented known performances of a number of different types of aircraft, which are useful when making an estimate, and may be regarded as a comparative means of allowing for the factors not taken into account in the curve.