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A longeron or stringer is a load-bearing component of a framework, especially in aircraft fuselages and automobile chassis. Learn about the difference between longerons and stringers, their functions, and examples of their use in various structures.
Longerons are spar-like structures that run lengthwise of the airplane's fuselage or span wise of a wing. They transfer loads and stresses from the skin to the formers or ribs. Learn more about longerons, how they differ from stringers, and see examples of their use in aircraft design.
A longeron is a fore-and-aft framing member of an airplane fuselage. The word comes from French and was first used in 1912. Learn more about its history and usage with Merriam-Webster.
So, what is a longeron in aircraft? In simple terms, longerons are longitudinal members that run parallel to the fuselage's length. Think of them as the sturdy spines that give the aircraft its shape and strength. Unlike their counterpart, the stringers, which run perpendicular to them, longerons take the brunt of the structural load.
As shown in Fig. 129, the optical facets are triangular in shape with a side length of 2 m and a perimeter supported by a triangular outer longeron frame. The facets would be stowed in the launch vehicle and on-orbit assembled completely by robots.
Learn about the two general types of fuselage construction: truss and monocoque. Find out how longerons, stringers, and other members reinforce the skin and carry the loads in semimonocoque fuselages.
The terms "longeron" and "stringer" are sometimes used interchangeably. Historically, though, there is a subtle difference between the two terms. If the longitudinal members in a fuselage are few in number (usually 4 to 8) and run all along the fuselage length, then they are called "longerons".
Longerons are long, thin members that support the structure of aircraft, vehicles, bridges, and ships. Learn the meaning, usage, and types of longerons from various sources, such as dictionaries and encyclopedias.
Learn about longerons, structural components of aircraft made of metal, wood, or carbon fiber. Find chapters and articles from books and journals on longerons and related topics.
The Longeron Replacement Program will focus only on the six longerons and the number one stringer." According to Wahl, these components were chosen because a failed longeron is catastrophic and a stringer one failure could hinder pilot ejection. All the Air Force F-15 C/D models will have to have the longerons replaced.