1-4
5. The wings are externally braced cantilever wings attached to the fuselage at the wing
carry through spars. The wing structure is conventional with spars, ribs, and stressed skin.
Major components include the following:
a. the front spar, which provides bending strength / stiffness;
b. the rear spar, which provides torsional strength / stiffness, and provides structure
for attachment of the flaps and ailerons;
c. the strut, which enhances bending strength / stiffness; and
d. conventional ailerons and single slotted flaps, attached to the training edge of the
wings.
6. The wings have been extensively modified to enhance performance at the reduced
airspeeds associated with glider towing operations. These modifications reduce stalling speed,
increase lift coefficient, improve slow speed aileron response, and reduce takeoff roll. These
modifications include:
a. leading edge cuffs (Stene Aviation Sportsman STOL Kit);
b. wingtip extensions (Air Research Technology Wing-X STOL); and
c. vortex generators (Micro Aerodynamics).
Figure 1-6 Wing Vortex Generators
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