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Interior of a Boeing/Stearman PT-17 showing small channel section stringers. In engineering, a longeron or stringer is a load-bearing component of a framework. The term is commonly used in connection with aircraft fuselages and automobile chassis. Longerons are used in conjunction with stringers to form structural frameworks. [1]
The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, [2] and was typical of light aircraft built until the advent of structural skins, such as fiberglass and other composite materials. Many of today's light aircraft, and homebuilt aircraft [3] in particular, are still designed in this way.
The front fuselage was built on four tubular longerons, but from leading edge rearwards it consisted of a set of oval formers with stringers. [1] The greatest novelty of the P.10 was that this part of the fuselage was not only a monocoque structure (still fairly unusual at the time), but a monocoque of steel with a load-bearing plastic skin ...
Spanning 1,092 feet long — three times the length of a football field — Nimitz-class warships are the largest aircraft carriers. 21 photos that show just how imposing US aircraft carriers are ...
The middle wing was mounted directly above the upper longerons, and there was a gap between the single lower longeron and the lower wing. The wings were connected by four unequally-spaced pairs of interplane struts on either side, the innermost pair on each side being just outboard of the upper longerons and the outer pair connecting only the ...
The D-25 was constructed primarily from Duralumin and wood. Duralumin stringers were used for the fuselage, with duralumin sheets riveted onto them. Unlike the fuselage, the wings were mostly of wood, with a main spar made of spruce, basswood for the stringers, and plywood for reinforcement, along with fabric coverings for the wing area and control surfaces.
Aircraft carriers are warships that act as airbases for carrier-based aircraft. In the United States Navy , these ships are designated with hull classification symbols such as CV (Aircraft Carrier), CVA (Attack Aircraft Carrier), CVB (Large Aircraft Carrier), CVL (Light Aircraft Carrier), CVE (Escort Aircraft Carrier), CVS (Antisubmarine ...
[2] The detailed design of the aircraft and its stress calculations was done by Hanns Klemm. [3] The W.29 retained the company's signature plywood slab-sided fuselage configuration with four main longerons and stringers rising aft of the engine supports to elevate the observer's position and improve his field of fire.