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Main spar of a de Havilland DH.60 Moth. In a fixed-wing aircraft, the spar is often the main structural member of the wing, running spanwise at right angles (or thereabouts depending on wing sweep) to the fuselage. The spar carries flight loads and the weight of the wings while on the ground.
As such, spare parts may be swapped onto a craft before launch, or completed spare spacecraft may be launched if the flight model is lost. NASA has two basic types of spares, development spares and operational spares. NASA makes a determination about which parts need spares based on whether parts are custom built, and the lead-time for procurement.
The Avid Flyer is a conventional layout, single engine, side by side two seat light aircraft, with a strut-braced high wing configuration. Aluminum tubes serve as leading edge/main spar and rear spar, each wing being supported by a pair of tubular lift struts. Sawn plywood wing ribs are bonded to the aluminum tube spars using a filled epoxy ...
A fixed-wing aircraft is a heavier-than-air aircraft, such as an airplane, which is capable of flight using aerodynamic lift. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which a rotor mounted on a spinning shaft generates lift), and ornithopters (in which the wings oscillate to generate lift).
While internal wing structure commonly provides much of the strength via a combination of spars, ribs and stringers, the external skin typically carries a proportion of the loads too. On many aircraft, the inner volume of the wingbox has also been used to store fuel, which is commonly referred to as being a wet wing design.
Other fixed-wing aircraft configurations may use different control surfaces but the basic principles remain. The controls (stick and rudder ) for rotary wing aircraft ( helicopter or autogyro ) accomplish the same motions about the three axes of rotation , but manipulate the rotating flight controls ( main rotor disk and tail rotor disk) in a ...
Fisher Flying Products is a Canadian aircraft manufacturer that produces kits for a wide line of light aircraft. The company's kits all feature wooden construction with aircraft fabric covering. Many of the designs are reproductions of classic aircraft, such as the company's 80% Fisher R-80 Tiger Moth that is based upon the de Havilland Tiger ...
They are primarily responsible for transferring the aerodynamic loads acting on the skin onto the frames and formers. In the wings or horizontal stabilizer, longerons run spanwise (from wing root to wing tip) and attach between the ribs. The primary function here also is to transfer the bending loads acting on the wings onto the ribs and spar.