Problems in Design and Construction of Large Aircraft 370132
THIS paper contains a general discussion of the problems involved in arriving at the final design of large airplanes having gross weights of 35,000 lb. up to approximately 100,000 lb. It deals with certain aerodynamic features that evidence themselves when airplanes are increased to the sizes just noted. Comments are made on wing-taper airfoil sections and the possibility of increasing the L/D in large airplanes, and on certain factors that enter into the control of large airplanes.
A rather detailed account of structural considerations is undertaken; it shows the methods used by the aircraft designer in scaling up his ideas from airplanes of a year ago to the larger types to follow. Several types of aircraft construction are discussed, showing the advantages and disadvantages of each type. The question of strength-weight ratios also is discussed.
The methods of analyzing semi-monocoque and pure monocoque structures are reviewed, and examples are given of the analysis procedure. The paper illustrates static-test methods on airplane parts.