Search references for LONGITUDINAL STABILITY. Phrases containing LONGITUDINAL STABILITY
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Stability of an aircraft in the pitching plane
In flight dynamics, longitudinal stability is the stability of an aircraft in the longitudinal, or pitching, plane. This characteristic is important in
Longitudinal_stability
Science of air vehicle orientation and control in three dimensions
aircraft stability: speed stability, stick free static longitudinal stability, static lateral stability, directional stability, oscillatory stability, and
Aircraft_flight_dynamics
Aircraft whose only horizontal aerodynamic surface is its main wing
requiring a more powerful engine, especially at high speeds. If longitudinal (pitch) stability and control can be achieved by some other method (see below)
Tailless_aircraft
Topics referred to by the same term
the static stability and controllability of aircraft and missiles. Longitudinal stability — the stability of an aircraft in the longitudinal, or pitching
Static_stability
Aircraft component
or more movable control surfaces, that provides longitudinal (pitch) and/or directional (yaw) stability and control. A stabilizer can feature a fixed or
Stabilizer_(aeronautics)
Aircraft flight measures
gravity for static stability. x c p {\displaystyle x_{cp}} is the static margin and must be negative for longitudinal static stability. Alternatively, positive
Stability_derivatives
Type of particle accelerator
and keeping them synchronized with the accelerating RF field cycle (longitudinal focusing). The in-plane or "vertical" focusing is typically achieved
Cyclotron
Topics referred to by the same term
including longitudinal stability Nyquist stability criterion, defining the limits of stability for pole-zero analysis in control systems Relaxed stability, the
Stability
Aircraft with low or negative stability
has a neutral stability design which was implemented to save fuel. To ensure stability for safe flight, an LSAS (Longitudinal Stability Augmentation System)
Relaxed_stability
1921 book by Carl Gustav Jung
biological category is supported by the work of Jerome Kagan, whose longitudinal studies on infants showed that "high-reactive" temperaments (precursors
Psychological_Types
Small lifting surface of a fixed-wing aircraft
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
Tailplane
Engineering discipline of marine vessels
axis Longitudinal stability for longitudinal inclinations, the stability depends upon the distance between the center of gravity and the longitudinal meta-center
Naval_architecture
Lifting body prototype
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
Northrop_M2-F2
Fully movable aircraft stabilizer
of both the fixed stabilizer and the movable elevator, providing longitudinal stability, pitch control, and appropriate stick force. Apart from reduced
Stabilator
Wide body airliners developed from the DC-10
MD-11 had a neutral stability design and one of the first commercial designs to employ a computer-assisted pitch/longitudinal stability augmentation system
McDonnell_Douglas_MD-11
Soviet medium-range airliner with 4 turboprop engines, 1957
the rear fuselage. The directional stability was better and the new ventral fins also improved longitudinal stability at high g and on landing approach
Antonov_An-10
Helicopter with two horizontal rotor assemblies
tandem rotor system are a larger center of gravity range and good longitudinal stability. Disadvantages of the tandem rotor system are a complex transmission
Tandem-rotor_aircraft
Propeller driven single engine aircraft
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
Cessna_172
American light aircraft
on the elevator along with a centering spring system to increase longitudinal stability and stall strips to improve handling during a stall. The company
Grumman_American_AA-1
Downwards lift force created by the aerodynamic characteristics of a vehicle
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
Downforce
Family of utility helicopters
varying loading conditions without requiring ballast to maintain longitudinal stability as with prior Sikorsky designs. This layout gave the H-19 series
Sikorsky_H-19_Chickasaw
Experimental turboprop aircraft
it developed an unhappy practice of 'snaking', apparently losing longitudinal stability". Hendrix also told the formidable Republic project engineer, "You
Republic XF-84H Thunderscreech
Republic_XF-84H_Thunderscreech
Abrupt reduction in lift due to flow separation
"A Systematic Study of the Factors Contributing to Post-Stall Longitudinal Stability of T-Tail Transport Configurations" (PDF). NASA Langley Research
Stall_(fluid_dynamics)
side of the vertical stabilizer. Relaxed stability Car handling Flight dynamics Dutch roll Longitudinal stability Hunting oscillation "Pilot's Handbook of
Directional_stability
Point at which the resultant force of a pressure field acts on a body
aerodynamic center plays an important role in analysis of the longitudinal static stability of all flying machines. It is desirable that when the pitch
Center of pressure (fluid mechanics)
Center_of_pressure_(fluid_mechanics)
Soviet ground-attack aircraft prototype
torque, coupled with the short rear fuselage, resulted in poor longitudinal stability characteristics. To correct the problem the second prototype had
Ilyushin_Il-16
Argentine cancelled jet fighter project
wing with low weight offers; the trans-sonic/subsonic turn rate, longitudinal stability and short field characteristics desired were impossible to combine
FMA_SAIA_90
Computerized safety automotive technology
Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology
Electronic_stability_control
Experimental aircraft to test sustained supersonic flight
of research flights with the X-3. The initial flights looked at longitudinal stability and control, wing and tail loads, and pressure distribution. NACA
Douglas_X-3_Stiletto
Ship response to disturbance from an upright condition
compartments they separate from undamaged ones. Longitudinal bulkheads have a similar purpose, but damaged stability effects must be taken into account to eliminate
Ship_stability
Science behind the motion of bicycles and motorcycles
with braking and accelerating. For details, see the section on longitudinal stability below. The horizontal components, due to friction between the wheels
Bicycle and motorcycle dynamics
Bicycle_and_motorcycle_dynamics
Aerodynamic effect
1991. ISBN 0-9629359-5-6. Axelson, John (September 4, 1947). "Longitudinal Stability and Control of High-Speed Airplanes with Particular Reference to
Mach_tuck
Single-aisle airliner family
Atlantic City, New Jersey. AIAA-1981-0808. Patent US4676460A: Longitudinal stability augmentation system and method When was the Speed Trim System implemented
Boeing_737_Classic
American aviation pioneers, inventors of the airplane
at Kitty Hawk. The first flights in 1904 revealed problems with longitudinal stability, solved by adding ballast and lengthening the supports for the elevator
Wright_brothers
Soviet strike fighter aircraft
Control Configured Vehicle A Su-7U modified with canards and a longitudinal stability augmentation system. It was designed as a testbed for a fly-by-wire
Sukhoi_Su-7
empennage (tail assembly). This configuration affects the aircraft's longitudinal stability and control characteristics. In a short-coupled aircraft, the reduced
Short-coupled_aircraft
stabilizer. The tailplane is mainly a trimmer, rather than for longitudinal stability. During development it was found that carbon rods formed by the
LAK_Genesis_2
Recovering a ship or cargo after a maritime casualty
to the inverted position. Transverse and longitudinal stability must be calculated to ensure floating stability. An upside-down ship is usually adequately
Marine_salvage
Point over which the aircraft would balance
problems can occur. The fore-aft CG affects the longitudinal stability of the aircraft, with the stability increasing as the CG moves forward and decreasing
Center of gravity of an aircraft
Center_of_gravity_of_an_aircraft
Experimental fighter aircraft
(580 mph) at sea level, but flight testing revealed that it lacked longitudinal stability at high speeds. Modifications of the wing/nacelle fillets and lengthening
Sukhoi_Su-9_(1946)
Lower centreline structural element of a ship or boat hull
The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a hydrodynamic and
Keel
Small hydrofoil watercraft
water, connected to a smaller foil at the bow used for steering and longitudinal stability. Riders operate the vehicle by bouncing up and down on a small platform
Human-powered_hydrofoil
US Navy carrier-based jet fighter
prototype only five days later. Initial issues with directional and longitudinal stability were encountered, but were quickly rectified. During one early land-based
Grumman_F9F_Panther
Triangle shaped aircraft wing configuration
Depending on its design, a canard surface may increase or decrease longitudinal stability of the aircraft. A canard delta foreplane creates its own trailing
Delta_wing
Soviet single-seat WWII fighter aircraft
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
Mikoyan-Gurevich_MiG-3
Prototype fighter aircraft for the US military
twin vertical stabilizers, canted at 45°, resulting in a "relaxed longitudinal stability" design, which enhances maneuverability. Northrop was not yet confident
Northrop_YF-17
French carrier-based strike fighter designed by Sud-Ouest in the late 1940s
engines. The aircraft proved to be slow, lacking in lateral and longitudinal stability and unsuitable for carrier operations; it did not enter production
SNCASO_SO.8000_Narval
American WWII-era fighter aircraft
an extra internal 184-US-gallon (700 L) tank, but problems with longitudinal stability occurred, so some compromises in performance with the full tank
North_American_P-51_Mustang
and to stall and spin resistance, and it was found to have poor longitudinal stability at high angles of attack. The wing was modified, with extensions
OMAC_Laser_300
Former Soviet airliner
Tu-104. Later accidents showed that the Tu-104 was prone to losing longitudinal stability when flying in certain atmospheric conditions. 17 October 1958 An
Tupolev_Tu-104
Single-engine, low-wing tandem-seat turboprop military training aircraft
standard model. It has an enlarged dorsal fin in order to improve longitudinal stability, modified wingroot fairings, stall strips on the leading edges as
Pilatus_PC-9
2009 aircraft accident in Japan
controllability and maneuver characteristics by improving the LSAS (Longitudinal Stability Augmentation System) functions, reducing the AGS (Auto Ground Spoilers)
FedEx_Express_Flight_80
American aeronautical engineer (1908–1996)
aspect ratio, NACA TN-539. C. H. Zimmerman (1936) An analysis of longitudinal stability in power-off flight with charts for use in design, NACA TN-521.
Charles_H._Zimmerman
Collection of key measurements that define a particular bike configuration
position of the center of mass of the combined bike and rider, on the longitudinal stability of a bike: a short wheelbase and high center of mass increase the
Bicycle and motorcycle geometry
Bicycle_and_motorcycle_geometry
Aircraft propelled by three jet engines
Consequently, abnormally large stabilizers are required to maintain longitudinal stability, seen on the McDonnell Douglas DC-10 and Lockheed L-1011, resulting
Trijet
1967 Swedish fighter aircraft family
had the shape of a double delta with a dogtooth added to improve longitudinal stability at high incidence angles.[page needed] A consequence of a tailless
Saab_37_Viggen
Measurement of the initial static stability of a floating body
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
Metacentric_height
Multi-role combat aircraft family by Dassault
design leadership as the price for European co-operation." Quote: "Longitudinal stability is moderately negative with a full fly-by-wire digital control system
Dassault_Rafale
American World War II-era jet and piston-engined fighter aircraft
longitudinal stability because the center of gravity had been miscalculated. In addition, the circular rear fuselage of the FR-1 gave less stability than
Ryan_FR_Fireball
Describes the general shape and layout of an aircraft wing
provide significant lift. An example is the Rutan Quickie. To provide longitudinal stability, the wings must differ in aerodynamic characteristics: typically
Wing_configuration
of a tail, wing dihedral for inherent stability, and rubber power. The planophore also had longitudinal stability, being trimmed such that the tailplane
History_of_aviation
aircraft part (EASA) Introduced in RMP for technical records LSAS longitudinal stability augmentation system LTC line training captain LTE Loss of Tail Rotor
List of aviation, avionics, aerospace and aeronautical abbreviations
List_of_aviation,_avionics,_aerospace_and_aeronautical_abbreviations
Mental disorder involving eccentricity and social isolation in afflicted individuals
Raine A, Young-Wolff K, Baker LA (July 2011). "Heritability and longitudinal stability of schizotypal traits during adolescence". Behavior Genetics. 41
Schizotypal personality disorder
Schizotypal_personality_disorder
; McIntyre, Nancy S.; Zajic, Matthew; Mundy, Peter C. (2019). "Longitudinal stability of reading profiles in individuals with higher functioning autism"
Reading_and_autism
German fighter-bomber
it would be a troubled programme. Flight testing revealed poor longitudinal stability and, despite modifications, was considered to be unsatisfactory
Messerschmitt_Me_410_Hornisse
pneumatic lines and hoses. A plan to increase the turn-rate and longitudinal stability of the Kurnass/Terminator derivatives through the installation of
List of McDonnell Douglas F-4 Phantom II variants
List_of_McDonnell_Douglas_F-4_Phantom_II_variants
American experimental jet aircraft
Base), the X-4's semi-tailless configuration exhibited inherent longitudinal stability problems (porpoising) as it approached the speed of sound. It was
Northrop_X-4_Bantam
British jet-powered delta wing strategic bomber
doubled the weight requirement. Realising that swept wings increase longitudinal stability, the team deleted the tail (empennage) and the supporting fuselage
Avro_Vulcan
Soviet 1930s monoplane fighter aircraft
pilot's cockpit too far to the rear. The Polikarpov had insufficient longitudinal stability and it was impossible to fly the aircraft "hands off". At the start
Polikarpov_I-16
1953 fighter aircraft family
operational fit of four external tanks was lacking in directional and longitudinal stability, requiring careful handling and close attention to speed limitations
North American F-100 Super Sabre
North_American_F-100_Super_Sabre
Plane wing that angles backwards or forwards
nacelles also had slight sweepback for similar reasons. 2. to provide longitudinal stability for tailless aircraft, e.g. Messerschmitt Me 163 Komet. 3. most
Swept_wing
Component of aerodynamic drag on aircraft
changes in pitching moment and centre of gravity during flight. For longitudinal stability in pitch and in speed, aircraft are designed in such a way that
Trim_drag
1974 aviation accident
Aircraft Industry recorded the following statement: The loss of longitudinal stability (nose dive) when the control wheel was pushed forward before passing
Aeroflot_Flight_H-75
Special vehicle to fly in air just above sea or ground
two major problems that the Soviet ekranoplans faced were poor longitudinal stability and a need for reliable navigation. Minister Ustinov died in 1984
Ground-effect_vehicle
1939 bomber aircraft family by Consolidated Aircraft
the aircraft difficult to control due to inadequate or excessive longitudinal stability. In his autobiography, Fate is the Hunter, the writer Ernest K.
Consolidated_B-24_Liberator
intense heat in the cramped confines of the vessel, and it lacked longitudinal stability – it caught the attention of the Swedish industrialist Thorsten
History_of_submarines
Griffon-powered variants of the Supermarine Spitfire
have to correct its directional characteristics and probably its longitudinal stability also, both of which in due time we achieved. Indeed, DP845 eventually
Supermarine Spitfire (Griffon-powered variants)
Supermarine_Spitfire_(Griffon-powered_variants)
Light boat that is paddled
have more longitudinal curvature (rocker); they typically have less transverse primary and secondary stability but more longitudinal stability because the
Surf_ski
Early type of bicycle
in front of the United States Capitol in 1885 to demonstrate its longitudinal stability, and Star bicycles were used for the sport of bicycle polo in the
American_Star_Bicycle
Type of aircraft
extremity of the fin with eight degrees of dihedral to improve longitudinal stability, and a large carrot-like fairing at the fin/tailplane junction.
OKB-1_150
1940 fighter aircraft model by Mikoyan-Gurevich
in the canopy obscuring the pilot's view, heavy controls, poor longitudinal stability, difficulty in opening the canopy, an excessively hot cockpit and
Mikoyan-Gurevich_MiG-1
Angle between each wing or tail surface within a pair
aircraft's Dutch roll oscillation and to maneuverability about the roll axis. Longitudinal dihedral is a comparatively obscure term related to the pitch axis of
Dihedral_(aeronautics)
French passenger airliner
1935. Initially, the prototype suffered from serious problems with longitudinal stability, and the aircraft was tested with several combinations of revised
Dewoitine_D.338
four hours after the beginning of the fire the boat suddenly lost longitudinal stability, took on a steep down-bubble, and sank. Of the 35 men on the boat's
Soviet_submarine_M-256
Changes in sexuality or sexual identity
The results of a large-scale, longitudinal study by Savin-Williams, Joyner, and Rieger (2012) indicated that stability of sexual orientation identity
Sexual_fluidity
Carrier-based dive bomber aircraft
faults of the aircraft throughout its operational life was poor longitudinal stability, resulting from a fuselage that was too short due to the necessity
Curtiss_SB2C_Helldiver
angle of incidence provided longitudinal stability and, in conjunction with the anhedral, contributed to directional stability. Small vertical fins added
Blohm_&_Voss_P_215
many early submarine inventors he had not overcome the problems of longitudinal stability. Nevertheless, although the submarine was lost whilst under tow
George_Garrett_(inventor)
World War II German medium bomber
the second test flight Nitschke revealed there was insufficient longitudinal stability during climb and flight at full power and the aileron controls required
Heinkel_He_111
Prototype fighter aircraft
was adequate, and control was effective at all speeds with good longitudinal stability. However, a tendency to dutch roll was prevalent. The prototype
McDonnell_XP-67
Soviet jet fighter prototype
before it was ready for production, the aircraft had problems with longitudinal stability, excessive stick forces from the ailerons and elevators, and the
Lavochkin_La-152
British aircraft designer (1908 – 1968)
the problems with the early marks of Spitfire was variability of longitudinal stability, leading to aircraft getting dangerously out of control and contributing
W._E._W._Petter
Sharp angle in aircraft cross-sections used as control surface
can have a significant effect on aircraft lift, drag, longitudinal balance and directional stability. The chines of the Lockheed Blackbird series extend
Chine_(aeronautics)
Variant of the Bermuda sailboat rig
boat. Conventional shrouds thereby contribute to both lateral and longitudinal stability, unlike rigs with unswept spreaders. A B&R rig can be a masthead
B&R_rig
Aircraft
the cruciform empennage they were intended to contribute to the longitudinal stability of the machine." "Perfectionnements aux appareils d'aviation et
Coandă-1910
British carrier-based fighter-bomber
while K5179, the second prototype, had a lengthened nose to improve longitudinal stability. Skua Mk.II Production aircraft powered by the sleeve valve Bristol
Blackburn_Skua
Articulated vehicle used in public transportation
is powered by a rear-mounted internal combustion engine, and the longitudinal stability of the vehicle is maintained by active hydraulics mounted under
Articulated_bus
British flying boat with 4 piston engines, 1944
revealed problems with the harmonisation of controls and marginal longitudinal stability. Before the trials were complete, the aircraft burnt out at its
Short_Shetland
British carrier-based fighter aircraft
on the trailing edges of the elevators. These changes improved longitudinal stability, especially when the aircraft was fully loaded. The modified windscreen
Supermarine_Seafire
1958 aviation accident in the Soviet Union
weather and near thunderstorms, the aircraft was prone to losing longitudinal stability, that could be followed by the landing gear dropping, engine failure
Aeroflot_Flight_04
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
Girl/Female
Muslim
Stability
Male
Chinese
stability and fortune.
Biblical
preparation, or stability, of Jehovah
Girl/Female
American, Arabic, Chinese, Danish, Finnish, German, Greek, Indian, Kannada, Marathi, Muslim
Stability; Ocean or Sea; From the Earth; Pure; Earth; Chicken; Hen
Girl/Female
Indian, Marathi
Stability; Discipline; Dedication; Over-cautious; Stubborn.
Girl/Female
Biblical
Preparation, or stability, of the Lord.
Girl/Female
Indian
Stability
Girl/Female
Arabic, Muslim
Stability; Firmness; Certainty; Boldness; Truth; Endurance
Male
Greek
Short form of Greek Eustathios, STATHIS means "good stability."
Boy/Male
Arabic, Muslim
Firmness; Stability; Certainty; Endurance; Boldness; Truth
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
Boy/Male
English Latin American
Roman clan name.
Boy/Male
American, Australian, Greek, Jamaican
Man from Sebasta
Boy/Male
Indian
Prosperity
Biblical
bitterness; rebellious; changing
Girl/Female
Tamil
Momentary, Twinkling of eye
Female
English
Short form of English Latisha, TISHA means "happiness."
Boy/Male
Hindu, Indian
Always Happy
Boy/Male
Indian, Punjabi, Sikh
Embodiment of Glory
Boy/Male
Muslim
Boy/Male
Indian, Punjabi, Sikh
Brave and Knowledgeable
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
LONGITUDINAL STABILITY
a.
Having four prominent longitudinal angles.
v. t.
To cut or form into small longitudinal hollows; to channel.
n.
A longitudinal ridge or projection like the keel of a boat.
a.
Striped longitudinally.
n.
A longitudinal rank, or row, of leaves along a stem.
a.
Extending in length; in the direction of the length; running lengthwise, as distinguished from transverse; as, the longitudinal diameter of a body.
n.
One of the riblike longitudinal ridges on the exterior of many corals.
a.
Two-nerved; -- applied to leaves which have two longitudinal ribs or nerves.
a.
Keel-shaped; having a longitudinal prominence on the back; as, a keeled leaf.
n.
Any longitudinal ridge in a plant.
n.
A crack, or longitudinal fissure.
a.
Marked longitudinally with fine lines.
n.
A longitudinal opening in a body, made by cutting; a cleft; a fissure.
n.
A genus of Foraminifera, having a porcelanous shell with several longitudinal chambers.
a.
Having three prominent longitudinal angles; as, a three-cornered stem.
n.
A longitudinal sleeper.
a.
Of or pertaining to longitude or length; as, longitudinal distance.
adv.
In the direction of length.
adv.
In the direction of the length; in a longitudinal direction.
n.
A railway sleeper lying parallel with the rail.