1946-01-01

DESIGN AND TEST EXPERIENCE WITH MONOCOQUE MAGNESIUM WINGS 460255

RESULTS of an extensive experimental program for the development of monocoque magnesium wing structures, which culminated in the design and testing of a full-size wing for the PV-1 airplane, are evaluated here. Additional tests are now in progress on a B-26 section to evaluate various combinations of chordwise and longitudinal stiffeners.
Practically all current aircraft construction is of the semimonocoque type, the authors say, adding that simplified construction, rigidity of surface, and overall cost reduction led to comprehensive investigation of magnesium as particularly suitable for such uses. As aircraft speeds increase, they point out that more aerodynamic efficiency will be essential. Monocoque magnesium structures, they conclude, should provide the necessary characteristics and should be better suited to mass production.
Note: Any opinions expressed herein are those of the authors and in no way reflect endorsement by the Navy Department.

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