Double tail

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The twin tail of a McDonnell Douglas F-15

USAF C-69 (military version of the Constellation)

Double tail units can be used in all tail unit variants such as vertical stabilizer, horizontal stabilizer and the ailerons. The most commonly used type is the double rudder unit. The rudder unit is responsible for the stabilization around the vertical axis and for the yaw movement. The advantages of a double tail unit are, for example, a lower overall height with the same tail unit area, since this is distributed over two tail units. A factor that is relevant for limited hangar sizes, such as on aircraft carriers. Other reasons could be the general configuration of the aircraft. For example, positioning in the middle can be unfavorable because of the positioning of the engines or because of strong aerodynamic shadowing from a comparatively wide fuselage.

The Lockheed Constellation and the Lockheed Super Constellation had triple vertical stabilizers.

Practical use

Air superiority fighters (LÜJ) essentially fight against other fighters and are supposed to fight for air superiority . They have to be agile in aerial combat; A double tail unit is helpful for quick changes of direction. One of the first Soviet jets with a double tail unit was the MiG-25 (first flight in 1964).

North American Aviation (NAA) began at the end of 1953 with the development of a carrier-based long-range bomber, which ultimately resulted in the North American A-5 (first flight in 1958). NAA wanted to build a double tail unit; the US Navy, however, preferred a simple, foldable tail unit and had the design changed.

Examples:

• F / A-18E / F Super Hornet
• Lockheed Martin F-22 (Raptor)
• Sukhoi Su-35 (Flanker E)
• Sukhoi Su-57 (series production from 2017)
• In response to the F-15 , the Soviet Union developed the MiG-29 multi- role fighter (first flight October 1977). An upgraded version of the MiG-29 is also known as the MiG-33 .
• the MiG 1.44 (first flight in February 2000) never went into production
• The basic layout of the J-20 (China) is clearly similar to that of the MiG 1.44.
• the Lockheed Martin F-35 ("Lightning II"; first flight December 2006)

• 

  An F / A-18F Super Hornet

• 

  Lockheed Martin F-22 Raptor

• 

  T-50-1 at MAKS 2011

• 

  MiG-29 of the German Air Force

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  J-20

• 

  F-35A Lightning II

See also

• Antonov An-225