United States. Navy Department. Bureau of Construction and Repair · Washington, Govt. print. off. · leaf 151
er of gravity. Using the neutral axis as a base, cube all the ordinates. With a planimeter find the area inclosed by the curve drawn through these jioints. One-third of this area is equal to the moment of inertia of the section. When it is inconvenient to draw the section full size, a convenient… … The ordinates from the neutral axis are cubed and for convenience are set out one-third of the cubed length (scale factor = 3); the cubed figure is distinguished by the open shading. The area of this figure is found to be 3.4- square inches; then the total cubed area is 4 by 3.4 or 13.6 square…
Airplanes · Airships · Aerodynamics
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