• In flight dynamics, longitudinal stability is the stability of an aircraft in the longitudinal, or pitching, plane. This characteristic is important in...
    20 KB (2,743 words) - 15:17, 11 October 2023
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    aircraft stability: speed stability, stick free static longitudinal stability, static lateral stability, directional stability, oscillatory stability, and...
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    requiring a more powerful engine, especially at high speeds. If longitudinal (pitch) stability and control can be achieved by some other method (see below)...
    19 KB (2,548 words) - 18:45, 31 August 2023
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    and keeping them synchronized with the accelerating RF field cycle (longitudinal focusing). The in-plane or "vertical" focusing is typically achieved...
    60 KB (6,665 words) - 13:23, 1 June 2024
  • motion Elastic stability, the resistance of a structural member to buckling Flight dynamics, including longitudinal stability Nyquist stability criterion,...
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    or more movable control surfaces, that provides longitudinal (pitch) and/or directional (yaw) stability and control. A stabilizer can feature a fixed or...
    20 KB (2,402 words) - 17:26, 8 June 2024
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    gravity for static stability. x c p {\displaystyle x_{cp}} is the static margin and must be negative for longitudinal static stability. Alternatively, positive...
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  • the static stability and controllability of aircraft and missiles. Longitudinal stability — the stability of an aircraft in the longitudinal, or pitching...
    893 bytes (143 words) - 03:09, 22 September 2023
  • has a neutral stability design which was implemented to save fuel. To ensure stability for safe flight, an LSAS (Longitudinal Stability Augmentation System)...
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    axis Longitudinal stability for longitudinal inclinations, the stability depends upon the distance between the center of gravity and the longitudinal meta-center...
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    Tailplane (section Stability)
    make the aircraft longitudinally stable (in much the same way a weather vane always points into the wind). The longitudinal stability of an aircraft may...
    12 KB (1,664 words) - 02:47, 14 April 2024
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    aircraft horizontal stabilizer. It serves the usual functions of longitudinal stability, control and stick force requirements otherwise performed by the...
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    purpose of the downforce on the horizontal stabilizer is to maintain longitudinal stability and allow the pilot to control the aircraft in pitch. The same principle...
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    tandem rotor system are a larger center of gravity range and good longitudinal stability. Disadvantages of the tandem rotor system are a complex transmission...
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  • Thumbnail for Republic XF-84H Thunderscreech
    it developed an unhappy practice of 'snaking', apparently losing longitudinal stability". Hendrix also told the formidable Republic project engineer, "You...
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    realized the M2-F2 had lateral control problems, even though it had a stability augmentation control system. When the M2-F2 was rebuilt at Dryden and...
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    standard model. It has an enlarged dorsal fin in order to improve longitudinal stability, modified wingroot fairings, stall strips on the leading edges as...
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  • Thumbnail for Sikorsky H-19 Chickasaw
    varying loading conditions without requiring ballast to maintain longitudinal stability as with prior Sikorsky designs. This layout gave the H-19 series...
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  • X-3 #33 September 3, 1954 Joseph Walker 49-2892 NACA 2 ? ? Static longitudinal stability and control, wing and tail loads, and pressure distribution. X-3...
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  • aerodynamic center plays an important role in analysis of the longitudinal static stability of all flying machines. It is desirable that when the pitch...
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    twin vertical stabilizers, canted at 45°, resulting in a "relaxed longitudinal stability" design, which enhances maneuverability. Northrop was not yet confident...
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  • Thumbnail for Electronic stability control
    Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology...
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    of gravity too far aft, which adversely affects the aircraft's longitudinal stability. While numbered and marketed as a 172, the 172RG was certified on...
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    MD-11 had a neutral stability design and one of the first commercial designs to employ a computer-assisted pitch/longitudinal stability augmentation system...
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  • torque, coupled with the short rear fuselage, resulted in poor longitudinal stability characteristics. To correct the problem the second prototype had...
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    included: The engine was moved forward 100 mm (4 in) to improve longitudinal stability. A new water radiator (OP-310) was fitted The first two modifications...
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    Atlantic City, New Jersey. AIAA-1981-0808. Patent US4676460A: Longitudinal stability augmentation system and method When was the Speed Trim System implemented...
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  • Thumbnail for Stall (fluid dynamics)
    "A Systematic Study of the Factors Contributing to Post-Stall Longitudinal Stability of T-Tail Transport Configurations" (PDF). NASA Langley Research...
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    of gyration about the longitudinal axis through the centre of gravity and G M ¯ {\displaystyle {\overline {GM}}} is the stability index. If a ship floods...
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    the rear fuselage. The directional stability was better and the new ventral fins also improved longitudinal stability at high g and on landing approach...
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