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Wing clipping is the process of trimming a bird's primary wing feathers or remiges so that it is not fully flight-capable, until it moults, sheds the cut feathers, and grows new ones. This procedure is usually carried out by avian veterinarians, breeders, or the bird's owners, and primarily on pet birds like parrots.
The HP-16's wing has 50% more wing area than the HP-15 and uses a Wortmann 67-150 airfoil. [1] [2] Like other Schreder designs the HP-16 is of all-metal construction, but with the wing skins bonded to foam ribs rather than using rivets to provide a smoother surface. The bonded construction also cut building time.
The aircraft structure is made from aluminum tubing, with foam wing ribs. Its 34 ft (10.4 m) span wing is supported by a single lift strut per side. The engines are Radne Raket 120 single cylinder, 120cc, air-cooled, two stroke powered hang glider powerplants of 14 hp (10 kW) each, which give a cruise speed of 50 mph (80 km/h) and a rate of ...
The aircraft is constructed primarily of fiberglass, foam, and epoxy. Urethane foam is used to form highly curved, hand-carved shapes such as the nose and wing tips. Blue rigid styrofoam is cut with a hot wire saw to form the wing cores. Thin PVC foam sheets are used to form bulkheads and the fuselage sides.
Using sharp fabric scissors, cut two circles out of the foam, about two inches wider than the cardboard. Trace and cut a smiley face from one of the foam circles. ... Cut out two oval wing shapes ...
The wings are strut-braced with a single spar and are made from fibreglass and foam with a 15.5% CAGI.R3 airfoil. The wing has a span of 31 .5 feet and an area of 127.4 sq ft (11.84 m 2), which gives it a wing loading of 9.5 lbs/sq ft at gross weight. The aircraft has removable wings, with single locking pins and quick-disconnect controls which ...
Sweeping the wing back also offers the opportunity to ensure stability and controllability, without unduly affecting efficiency. The first two subscale Prandtl-D aircraft had a 12.5-foot wingspan and were constructed of a machined foam core wrapped in a skin of carbon fiber. [4]
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