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Some of the forces acting on a wing spar are: [2] Upward bending loads resulting from the wing lift force that supports the fuselage in flight. These forces are often offset by carrying fuel in the wings or employing wing-tip-mounted fuel tanks; the Cessna 310 is an example of this design feature.
The retirement life of the wing spar of a transport category aeroplane type-certificated to the safe-life principle is based on a safety factor applied to data obtained from flight tests and information about properties of the spar material. The life of 11,400 flights for the Viscount inner lower boom was based on safety factors of 3.5 for the ...
A new version, JS1C-21m, with 3 metre wing-tips, which increase the span to 21 metres, has been developed. The first flight was on 22 March 2012. Because of the higher wing loads and increased maximum take-off mass of 720 kg (increased from 600 kg), the wing/wingtip junction has been redesigned including stronger wing spar caps and thicker wing ...
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.
Composite materials are used extensively throughout the A350. The Airbus A350 XWB is built of 53% CFRP [21] including wing spars and fuselage components, overtaking the Boeing 787 Dreamliner, for the aircraft with the highest weight ratio for CFRP, which is 50%. [22] This was one of the first commercial aircraft to have wing spars made from ...
The Spitfire wing may be classified as: "a conventional low-wing cantilever monoplane with unswept elliptical wings of moderate aspect ratio and slight dihedral".. The wing configuration or planform of a fixed-wing aircraft (including both gliders and powered aeroplanes) is its arrangement of lifting and related surfaces.
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 ...
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.