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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.
Faulty repair after same plane suffered a tailstrike: the rear bulkhead failed which caused the tail fin to fall off and rupture all four hydraulic systems. The crash remains the deadliest single-aircraft accident in aviation history. 1987-11-28 South African Airways Flight 295: Indian Ocean, 134 nautical miles (248 km) north-east of Mauritius,
Piper Aircraft Inc. Customer Service Information File 2009 retrieved 2010-04-08; Piper Airplane Parts Catalog: PA-31 Navajo, PA-31-300 Navajo, PA-31-325 Navajo C/R; September 10, 2009. Piper Aircraft Corporation, Manual Part Number 753-703; Piper Navajo Information Manual, Revision 9, March 18, 1994. Piper Aircraft Corporation, Manual Part ...
The PA-15 was the first post-World War II Piper aircraft design.It utilized much of the same production tooling that created the famous Piper Cub, as well as many of the Cub structural components (tail surfaces, landing gear, most of the wing parts). [3]
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 distance between stitches is reduced in areas affected by the propeller wash. The covering would then be treated with tautening dope to remove wrinkles and increase structural strength, finish coats often containing aluminium powder would serve to protect the surface from ultra-violet light.
The most important technical challenges in the implementation of a successful composite patch repair are: (a) proper design of the repair patch and the procedures that will be followed, (b) selection of the most suitable materials and tools for the application, (c) careful surface preparation, (d) implementation of the composite patch repair ...
A faulty repair years earlier had weakened the aircraft's rear pressure bulkhead, which failed in flight. The vertical stabilizer and much of the aircraft's empennage was blown off during the decompression. The decompression also ruptured all four hydraulic lines which controlled the aircraft's mechanical flight controls.