Triplane

These are often suggested as hypothetical options, with principles following along phraseological lines such as "two or more", German "Zwei- oder …", though triplanes, per se, are sometimes named as such and-or depicted in diagrams.

Lift surface principles, applicable to monoplanes, and biplanes, and triplanes, are sometimes explored as such. We have a "Aéroplane à plans multiples où chaque plan travaille d'une façon indépendante", the original document of which suggests other titles, such as "Bi-tri-plan" and "Multimonoplan". In such a case as this, lift principles, applicable to the monoplane, are in effect, and-or in theory, multiplied in their efficacy.

This wiki has 22 patents in category "Triplane".

Patents in category Triplane

• Patent DE-1916-324904 (English title: Biplane, or aircraft with two, or more, pairs of wings, Filing date: 1916-05-26, Applicant firm: Rumpler-Werke G.m.b.H. in Berlin-Johannisthal)
• Patent GB-1897-15221 (English title: Means and appliances for effecting Aerial Navigation, Inventors: Octave Chanute • Augustus Moore Herring, Filing date: 1897-06-25)
• Patent FR-1909-407090.11561 (English title: Helicoplane-parachute, Inventors: Charles Wolf, Supplementary to patent: Patent FR-1908-407090, Filing date: 1909-04-28)
• Patent FR-1909-407090.11562 (English title: Helicoplane-parachute, Inventors: Charles Wolf, Supplementary to patent: Patent FR-1908-407090, Filing date: 1909-06-26)
• Patent HU-1916-79362 (English title: Tri-lobed aircraft, Inventors: Gabriel Letsch, Supplementary to patent: Patent DE-1915-299150, Filing date: 1916-02-28, Applicant firm: AGO Flugzeugwerke G. m. b. H.)
• Patent FR-1910-420463 (English title: Device for keeping airplanes in the balanced position, that is, for the automatic maintainance of equilibrium by way of the pendulum, Inventors: Hans Lohmann, Supplementary to patent: Patent DE-1909-05-03 Hans Lohmann, Filing date: 1910-05-03)
• Patent HU-1910-55431 (English title: Equipment for maintaining the equilibrium position of gliders, Inventors: Hans Lohmann, Supplementary to patent: Patent DE-1909-05-03 Hans Lohmann, Filing date: 1910-05-03)
• Patent GB-1910-11779 (English title: Aeroplanes, Inventors: Herbert Malcolm McNeill, Filing date: 1910-05-12)
• Patent GB-1910-12092 (English title: Improvements in or relating to Flying Machines, Inventors: Haydn Gough-Turner, Filing date: 1910-05-17)
• Patent GB-1910-12819 (English title: Apparatus for Maintaining Equilibrium in Aeroplane Flying Machines, Inventors: Hans Lohmann, Supplementary to patent: Patent DE-1909-05-03 Hans Lohmann, Filing date: 1910-05-26)
• Patent GB-1911-19798 (Inventors: Richard Ralph à Court Beadon, Filing date: 1910-08-24)
• Patent FR-1911-427668 (English title: Airplane with automatic stabilizers, Inventors: Émile-Antoine Corbillon, Filing date: 1911-01-17)
• Patent FR-1914-476681 (English title: Airplane of multiple levels(or wings) in which each level(or set of wings) works independently, Inventors: Alexandre Bezobrazoff, Filing date: 1914-09-22)
• Patent DE-1915-299150 (English title: Triplane, Inventors: Gabriel Letsch, Filing date: 1915-03-12, Applicant firm: AGO Flugzeugwerke G. m. b. H.)
• Patent FR-1915-502433 (English title: Improvements in Flying Machines, Inventors: Federico Caproni, Supplementary to patent: Patent IT-1915-150227, Filing date: 1915-08-14)
• Patent GB-1915-14157 (English title: Improvements in Flying Machine Construction, Inventors: Frederico Caproni, Supplementary to patent: Patent FR-1915-502433, Filing date: 1915-10-06)
• Patent FR-1916-502680 (English title: Improvements to airplanes, Filing date: 1916-01-10, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent US-1917-1364731 (English title: Aeroplane, Inventors: Gustave Delage, Supplementary to patent: Patent FR-1916-502680, Filing date: 1917-08-07, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent US-1917-1263676 (English title: Hydrotriplane for army purposes, Inventors: Martin Jelalian, Filing date: 1917-12-03)
• Patent AT-1918-80039 (English title: Airplane, Filing date: 1918-02-18, Applicant firm: Gothaer Waggonfabrik A. G.)
• Patent AU-1918-8217 (English title: Flying machine construction, Inventors: Federico Caproni, Filing date: 1918-08-07)
• Patent GB-1920-148377 (English title: Triplane, Inventors: Gabriel Letsch, Supplementary to patent: Patent DE-1915-299150, Filing date: 1920-07-09, Applicant firm: AGO Flugzeugwerke G. m. b. H.)

Publications referring to Triplane

• André, 1908, De la stabilité des aéroplanes. Le multiplan de M. d'André (Simple title: The stability of airplanes. The multiplane of M. d'André, Journal: La Rev. Aviat.)
• Publication 956, 1909, At Morris Park (Simple title: At Morris Park. Flyers which will be on hand for the spring exhibition, Journal: Aeronautics)
• Hunsaker, 1916, Aerodynamical properties of the triplane (Simple title: Aerodynamical properties of the triplane, Journal: Flight)
• Cañellas, 1909, Notables experimentos de Aviación (Simple title: Notable experiments in aviation, verified by captain Cañellas, Journal: Revista de Locomoción Aérea)

See also:

• English Wikipedia list of triplanes

Enclosing categories	Airplane
Subcategories
Keywords	Airfoil
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