from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A major structural member of an aircraft fuselage, running from front to rear.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A thin strip of wood or metal, to which the skin of an aircraft is fastened.


from The American Heritage® Dictionary of the English Language, 4th Edition

French, from Old French, beam, from long, long, from Latin longus; see del-1 in Indo-European roots.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Borrowing from French.


  • The problem is with a lodge strip of metal called the longeron, which essentially holds the fuselage together.

    CNN Transcript Nov 28, 2007

  • In fact, they're the ones who determined the longeron was the problem.

    Defense Industry Daily

  • Mostholidaying bird-lovers have their own favourites on their lists - or rather no longeron their lists.


  • Major Stephen Stillwell, a Missouri Air Guard pilot, was flying his F-15, attempting an 8G turn at 500 miles an hour when there was a major structural failure in something called the longeron.

    CNN Transcript Jan 9, 2008

  • She told her also, now entirely reassured by Aggie's voice, that they had been much longeron the way than they had expected, and were now getting anxious.

    Warlock o' Glenwarlock

  • (DAS) subsidiary has been awarded an indefinite delivery, indefinite quantity (IDIQ) contract for the V-22 Osprey titanium longeron assemblies.

    The Earth Times Online Newspaper

  • Patria repaired the aircraft using structures sourced from a damaged F-18C, with major activities having included fitting a new starboard wing, engine intake and control surfaces, and making repairs to the aircraft's centre fuselage longeron.


  • These cracks expanded under life cycle stress, causing the longeron to fail, which initiated a catastrophic failure of the remaining support structures and led to the aircraft breaking apart in flight …. the pilot's actions during the mishap sequence were focused, precise and appropriate.

    Defense Industry Daily

  • To date, longeron cracks have been discovered in an additional 4 aircraft.

    Defense Industry Daily

  • The initial weld joined an Aluminum-Lithium (AL) 2195 cone panel and AL 2219 longeron using an innovative friction stir welding process. Current News - Top Stories


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