Interplane strut


Interplane strut

__NOTOC__Infobox Aviation
name=Interplane strut


caption=Metal interplane struts of a Bücker Jungmann

An interplane strut is an aircraft airframe component used on biplanes and other aircraft with multi-wing designs. They are designed to transmit lift and landing loads between wing panels, which are often braced with wires, they also maintain the correct angle of incidence for the connected wing panels. Very early aircraft designs used interplane struts made from Bamboo [Taylor, 1990. p. 71.] which were later replaced by streamlined struts made either from Spruce or Ash, woods chosen for their strength and light weight. More modern or higher performance aerobatic biplanes often feature metal interplane struts.

The most common configuration is for two struts to be placed in parallel, one behind the other. These struts will usually be braced by wires running diagonally between them, and more than one of these strut pairs may be placed along the span of the wing, creating multiple "bays" (see below). Other common arrangements include N-struts, where the diagonal bracing wires are replaced by an extra wooden or metal member running diagonally from the top of one strut to the bottom of the other in a pair; V-struts, where the struts from the upper wing converge to a single point on the lower wing (commonly used when the lower wing has a considerably smaller chord than the upper wing), and the I-strut, where the pair of struts is replaced by a single, thicker strut. Some biplane wings have been braced with struts forming a Warren truss.

Bays

The compartments created by adding interplane struts are known as 'bays', this relates to only one side of the aircraft's wing panels. For example, the de Havilland Tiger Moth is a single-bay biplane where the Bristol F.2 Fighter is a two-bay biplane. [Taylor, 1990. p. 76]

Gallery

See also

* Aircraft structures

References

Notes

Bibliography

* Taylor, John W.R. "The Lore of Flight", London: Universal Books Ltd., 1990. ISBN 0-9509620-15.


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