• Directional stability is the tendency of a vehicle or moving body to keep its orientation aligned with its direction of movement. When a car or an airplane...
    13 KB (2,674 words) - 15:26, 3 June 2025
  • Thumbnail for Aircraft flight dynamics
    aircraft stability: speed stability, stick free static longitudinal stability, static lateral stability, directional stability, oscillatory stability, and...
    49 KB (8,502 words) - 12:49, 28 May 2025
  • Thumbnail for Flying wing
    For any aircraft to fly without constant correction it must have directional stability in yaw. Flying wings lack anywhere to attach an efficient vertical...
    37 KB (4,490 words) - 12:34, 23 June 2025
  • Thumbnail for Stabilizer (aeronautics)
    control surfaces, that provides longitudinal (pitch) and/or directional (yaw) stability and control. A stabilizer can feature a fixed or adjustable structure...
    21 KB (2,406 words) - 00:22, 13 June 2025
  • category. Stability (algebraic geometry) BIBO stability (Bounded Input, Bounded Output stability), in signal processing and control theory Directional stability...
    4 KB (507 words) - 12:16, 23 March 2025
  • Thumbnail for Dutch roll
    roll results from relatively weaker positive directional stability as opposed to positive lateral stability. When an aircraft rolls around the longitudinal...
    18 KB (2,123 words) - 16:51, 16 June 2025
  • Thumbnail for Stability derivatives
    Each stability derivative is determined by the position, size, shape and orientation of the missile components. In aircraft, the directional stability determines...
    20 KB (3,324 words) - 13:57, 3 April 2025
  • Thumbnail for Vertical stabilizer
    Their role is to provide control, stability and trim in yaw (also known as directional or weathercock stability). It is part of the aircraft empennage...
    26 KB (3,388 words) - 15:15, 23 June 2025
  • Thumbnail for Yaw (rotation)
    mis-alignment, and generate side forces as a consequence. From directional stability study, denoting the angular velocity ω {\displaystyle \omega } ...
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  • Damping is increased by large directional stability and small dihedral and decreased by small directional stability and large dihedral. Although usually...
    10 KB (1,467 words) - 15:24, 3 June 2025
  • Thumbnail for Adhesion railway
    used from frictional contact mechanics. The forces which result in directional stability, propulsion and braking may all be traced to creep. It is present...
    26 KB (3,506 words) - 10:40, 4 June 2025
  • Thumbnail for Chine (aeronautics)
    significant effect on aircraft lift, drag, longitudinal balance and directional stability. The chines of the Lockheed Blackbird series extend about 40% of...
    6 KB (761 words) - 19:51, 12 November 2024
  • Thumbnail for Muskrat
    main means of propulsion, and the unique tail mainly important in directional stability. Muskrats spend most of their time in the water and can swim underwater...
    29 KB (3,196 words) - 15:25, 19 June 2025
  • Thumbnail for Strake (aeronautics)
    for example, the Concorde had small nose strakes "to get a better directional stability". Double delta wing aircraft (Concorde, Tupolev Tu-144, Boeing 2707...
    6 KB (727 words) - 07:45, 27 March 2025
  • the name has been used for a fin on a surfboard which improves directional stability and to a movable fin on a kayak which adjusts the boat's centre...
    14 KB (1,633 words) - 19:34, 24 May 2025
  • 1950 John Griffith 46-677 NACA 2 ? ? Longitudinal, latitudinal, directional stability, and control. X-4 #17 September-November, 1950 John Griffith 46-677...
    10 KB (11 words) - 21:06, 21 June 2025
  • Thumbnail for Compression lift
    The XB-70 had folding wingtips to enhance both compression lift and directional stability at high speeds....
    3 KB (234 words) - 03:01, 29 September 2024
  • {\displaystyle -h} , so that positive stability is associated with positive static margin.): 8  Directional stability Flight dynamics Handling qualities...
    20 KB (2,763 words) - 15:23, 3 June 2025
  • Thumbnail for English Electric Lightning
    launches ensured adequate directional stability; later Lightning variants had a larger vertical fin, giving a greater stability margin at high speed. It...
    111 KB (14,336 words) - 12:38, 27 May 2025
  • Thumbnail for Kayak
    matter of trade-offs: directional stability ("tracking") vs maneuverability; stability vs speed; and primary vs secondary stability. Multihull kayaks face...
    65 KB (7,984 words) - 00:28, 12 June 2025
  • Thumbnail for Caster angle
    steering. This makes a vehicle easier to control and improves its directional stability (reducing its tendency to wander). Excessive caster angle will make...
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  • Thumbnail for Airbus Beluga
    tailplane was strengthened and fitted with auxiliary fins to maintain directional stability. The tailplane trim tank was also deleted. To provide access to...
    37 KB (3,687 words) - 07:13, 20 June 2025
  • Thumbnail for Surfboard
    or more fins (skegs) on the bottom rear of the board to improve directional stability, and numerous improvements in materials and shape. Modern surfboards...
    46 KB (6,432 words) - 05:31, 5 May 2025
  • Thumbnail for North American XB-70 Valkyrie
    It also added more vertical surface to the aircraft to maintain directional stability at high speeds. NAA's solution had an additional advantage, as it...
    74 KB (8,955 words) - 16:48, 10 June 2025
  • Thumbnail for Antonov An-10
    factory was. The first prototype flew on 7 March 1957, revealing poor directional stability which led to a taller vertical fin, and later to hexagonal auxiliary...
    19 KB (2,510 words) - 16:33, 25 November 2024
  • Thumbnail for Ilyushin Il-62
    regarded by pilots and passengers alike, especially for its strong directional stability in high turbulence (although landings are sometimes bouncy), smooth...
    61 KB (7,059 words) - 18:47, 18 June 2025
  • Thumbnail for Fish fin
    linear acceleration via oscillating propulsion, as well as providing directional stability; while paired fins are used for generating paddling acceleration...
    91 KB (7,813 words) - 21:52, 16 June 2025
  • Thumbnail for Tailless aircraft
    wing tips, combined with steep downward-angled anhedral, enhanced directional stability. Although originally conceived as a monoplane, Dunne's initial designs...
    19 KB (2,551 words) - 02:03, 9 December 2024
  • even higher descent speeds into the transonic range without losing directional stability. The X-5 and substituted greater explosive power for descent speed...
    6 KB (791 words) - 09:01, 17 January 2025
  • Thumbnail for AEG J.I
    other changes included the fitting of an enlarged fin to improve directional stability and a repositioned aileron link strut. By the signing of the Armistice...
    15 KB (1,336 words) - 23:53, 28 January 2025