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In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of struts, which act in compression or tension as the need arises, and/or wires, which act only in tension.
The S.XIII featured relatively conventional construction, that being a wire-braced biplane with a box-shaped fuselage and a nose-mounted engine, except for its interposed wing struts located halfway along the wing span, which gave the fighter the appearance of being a double-bay aircraft instead of a single-bay. [13]
To assume a brace position or crash position is an instruction that can be given to prepare for a crash, such as on an aircraft; the instruction to "Brace for impact!" or "Brace! Brace!" is often given if the aircraft must make an emergency landing on land or water. There are many different ways to adopt the brace position, with many countries ...
Two years later, an MD–11 (Swissair Flight 111) airplane crashed into the Atlantic Ocean, killing all 229 people aboard. Although an exact cause could not be determined, the presence of re-solidified copper on a portion of a wire of the in-flight entertainment system cable indicated that wire arcing had occurred in the area where the fire ...
Wires ran back to a lever on a lay-shaft in the tail unit from where the elevators actuated via a push-pull tube. Actuation of the rudder was via a series of cables that ran directly to the rudder from the rudder-bar. [15] A divided-type undercarriage with a relatively wide track was fitted. [14]
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Bracing struts and wires of many kinds were extensively used in early aircraft to stiffen and strengthen, and sometimes even to form, the main functional airframe. Throughout the 1920s and 1930s they fell out of use in favour of the low drag cantilever construction. Most aircraft bracing struts are principally loaded in compression, with wires ...
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