 ##  [Longeron](/longeron) 

  ##  [Longeron](https://engineering.quantumdictionary.io/longeron-0) 

  
 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)


**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A primary continuous longitudinal beam or stiffener in an airframe or vehicle fuselage that carries major bending moments and axial loads across multiple bays and transfers these loads to frames, fittings and supports.