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Abst ractThe wing on the NASA F-l11 transonic aircraft technology airplane was modified to provide flexible leading and trailing edge flaps. This wing is known as thE! mission adaptive wing (MA~I) because aerodynamic efficiency can be maintained at all speeds. Unlike a conventional wing, the MAW has no spoilers. e)(ternal flap hinges, or fair'ings to break the smooth contour. The leading edge flaps and three-segment trailing edge flaps are controll ed by a fI!dundant fly-by-wi re control system that features iI dual digital primary system architecture providing roll and symmetric commands to the MAW control surfaces. A segregated analog backup system is provided in the event of a primary !.ystem fa i 1 ure. Thi s paper di scusses the design, development, testing, qualification, and fl ight test experience of the MAW primary and backup fl i ght control systems.

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Major and selected minor elements were determined in seven whole rock fragments, five portions of pulverized lunar rock, and the lunar soil. Three different rock types were represented: vesicular, fine-grained basaltic rocks; medium to coarse-grained, vuggy gabbroic rocks; and breccia. The ranges (in percent) for the major constituents of the lunar samples are: SiO(2), 38 to 42; Al(2)O(3), 8 to 14; total iron as FeO, 15 to 20; MgO, 6 to 8; CaO, 10 to 12; Na(2)O, 0.5 to 1; K(2)0, 0.05 to 0.4; TiO(2), 8 to 13; MnO, 0.2 to 0.3; and Cr(2)O(3), 0.2 to 0.4. The high reducing capacity of the samples strongly suggests the presence of Ti(III).

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