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See searches and references containing ZERO LIFT-AXIS!ZERO LIFT-AXIS
Aerodynamic concept
cambered aerofoil generates no lift when it is moving parallel to an axis called the zero-lift axis (or the zero-lift line.) When the angle of attack
Zero-lift_axis
Topics referred to by the same term
in rocketry Zero in the Lebesgue measure Zero-lift axis, in aerodynamics Zero-lift drag coefficient Zero-length spring, a hypothetical type of spring
0L
Dimensionless quantity relating lift to fluid density and velocity over an area
coefficient Foil (fluid mechanics) Pitching moment Circulation control wing Zero lift axis Clancy, L. J. (1975). Aerodynamics. New York: John Wiley & Sons. Sections
Lift_coefficient
Angle between each wing or tail surface within a pair
term related to the pitch axis of an airplane. It is the angle between the zero-lift axis of the wing and the zero-lift axis of the horizontal tail. Longitudinal
Dihedral_(aeronautics)
Angle between the chord of a wing and the undisturbed airflow
longitudinal axis). Some authors do not use an arbitrary chord line but use the zero lift axis where, by definition, zero angle of attack corresponds to zero coefficient
Angle_of_attack
Asymmetry between the two acting surfaces of an airfoil
Where t is the thickness ratio. Chord NACA airfoil Aerodynamic drag Zero-lift axis Rumerman, Judy (n.d.). "Sir George Cayley—Making Aviation Practical"
Camber_(aerodynamics)
Flight path putting aircraft in unusual attitudes
about the longitudinal axis at maximum roll rate. It consists of a pitch-up followed by a roll which is uncontrolled in the pitch axis, resulting in an initial
Aerobatic_maneuver
Rotating aerodynamic rotor or wing
A rotor wing is a lifting rotor or wing which spins to provide aerodynamic lift. In general, a rotor may spin about an axis which is aligned substantially
Rotor_wing
Surface that allows a pilot to adjust and control an aircraft's flight attitude
backwards, affecting the lift they produce. Vertical axis passes through an aircraft from top to bottom, and the rotation about this axis is called yaw. Yaw
Flight_control_surfaces
and phonon sideband Zero-point energy Zero differential overlap Zero gravity (disambiguation) Zero lift axis Zero sound Zeroth law of thermodynamics Zeta
Index_of_physics_articles_(Z)
Force perpendicular to flow of surrounding fluid
stall, lift is significantly reduced, though it does not drop to zero. The maximum lift that can be achieved before stall, in terms of the lift coefficient
Lift_(force)
direction, and a lift component with magnitude L in the −zw direction. In general, the thrust can have components along each body frame axis. For fixed wing
Steady_flight
Japanese carrier-based fighter aircraft
cockpit, the Zero was one of the most modern carrier-based aircraft in the world at the time of its introduction. It had a fairly high-lift, low-speed wing
Mitsubishi_A6M_Zero
Deflection of a spinning object moving through a fluid
motion; the dynamic lift is zero. Resnick, Robert; Halliday, David (1966). Physics. John Wiley & Sons. Section 18-5. When dynamic lift on an object occurs
Magnus_effect
Science of air vehicle orientation and control in three dimensions
known as wings level or zero bank angle. The most common aeronautical convention defines roll as acting about the longitudinal axis, positive with the starboard
Aircraft_flight_dynamics
Aeronautical engineering measurement
angular measure that is taken with respect to each surface's respective zero-lift line rather than its chord line. Aerodynamic decalage may be modified
Decalage
Physics of heavier than air aircraft
requires no lift. When flying straight upwards the aircraft can reach zero airspeed before falling earthwards; the wing is generating no lift and so does
Aircraft_flight_mechanics
Fluid flow revolving around an axis of rotation
circle around the vortex axis. In this case the vorticity ω → {\displaystyle {\vec {\omega }}} is zero at any point not on that axis, and the flow is said
Vortex
Ratio of the lift of an aircraft to its weight
lift vector is the same (as seen by an observer on the ground), but in the latter the vertical axis of the aircraft points downwards, making the lift
Load_factor_(aeronautics)
serves the same basic purpose as a lift hill—providing energy to the train—but does so in a different manner. A lift hill gives the train potential energy
List of roller coaster elements
List_of_roller_coaster_elements
Mathematical shape
by an infinite line that is simultaneously being rotated and lifted along its fixed axis of rotation. It is the third minimal surface to be known, after
Helicoid
Type of vertical-axis wind turbine
The Darrieus wind turbine is a type of vertical-axis wind turbine used to generate electricity from wind energy. The turbine consists of a number of curved
Darrieus_wind_turbine
Matrix representing a Euclidean rotation
the angle is zero, the axis is undefined. When the angle is 180°, the matrix becomes symmetric, which has implications in extracting the axis. Near multiples
Rotation_matrix
Discipline of figure skating
team can make twist lifts more complicated when the woman executes a split position (each leg is at least 45° from her body axis and her legs are straight
Pair_skating
Torque on an airfoil from forces applied at the aerodynamic center
using the lift on the horizontal stabilizer. More generally, a pitching moment is any moment acting on the pitch axis of a moving body. The lift on an airfoil
Pitching_moment
Aircraft flight measures
stability axis is the same as the Y body-fixed axis. Z stability axis is perpendicular to the plane made by the X stability axis and the Y body axis. Forces
Stability_derivatives
Water turbine
prototype, the Darrieus turbine, and for the family of similar vertical axis wind turbines which includes also Turby wind turbine, aerotecture turbine
Gorlov_helical_turbine
Relationship between drag on an aircraft and other variables
between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation
Drag_curve
Pseudovector field describing the local rotation of a continuum near some point
parallel to the axis of the pipe; but faster near that axis, and practically stationary next to the walls. The vorticity will be zero on the axis, and maximum
Vorticity
Theorem in differential topology
its fixed axis gives rise to a continuous tangential vector field of velocities of the points located on its surface. This field has two zero-velocity
Hairy_ball_theorem
Type of AC electric motor
voltage is zero. Since there is no induced emf, there is no current in the circuit and the net torque developed is, again, zero. If the brush axis is displaced
Repulsion_motor
or they may lie together in a single horizontal plane about a vertical axis, as in the cruciform rotor wing or X-wing. Rocket- and jet-propelled missiles
Cruciform_wing
Principle relating to fluid dynamics
lifting action. ... Lift is caused by air moving over a curved surface. d. Anderson, David F.; Eberhardt, Scott. "The Newtonian Description of Lift of
Bernoulli's_principle
British military blimps during WWI
The SSZ (Sea Scout Zero) non-rigid airships or "blimps" were developed in United Kingdom during World War I from the earlier SS ("Sea Scout") class. The
SSZ_class_airship
Abrupt reduction in lift due to flow separation
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack exceeds its critical value. The critical angle
Stall_(fluid_dynamics)
Collection of key measurements that define a particular bike configuration
lifting the front wheel off the ground when accelerating. Short bikes are much more suitable for performing wheelies and stoppies. The steering axis angle
Bicycle and motorcycle geometry
Bicycle_and_motorcycle_geometry
Suspension of objects by magnetic force
forces. The two primary issues involved in magnetic levitation are (a) lifting forces – providing an upward force sufficient to counteract gravity, and
Magnetic_levitation
List of definitions of terms and concepts commonly used in aerospace engineering
longitudinal axis), which normally results in a change in flight path due to the tilting of the lift vector. Movement around this axis is called 'rolling'
Glossary of aerospace engineering
Glossary_of_aerospace_engineering
Automobile variable valve timing technology
Variable Valve Timing & Lift Electronic Control (VTEC) is a valve system developed by Honda to improve the volumetric efficiency of a four-stroke internal
VTEC
They are typically used to visualize the opening time versus area and/ or lift of the following components: Intake port / valve Scavenging port / valve
Kramer_graph
Spaceflight where the spacecraft does not go into orbit
the spacecraft will fail to complete an orbit. The major axis is vertical, the semi-major axis a is more than R/2. The specific orbital energy ϵ {\displaystyle
Sub-orbital_spaceflight
Upward force that opposes the weight of an object immersed in fluid
density of the fluid. Taking the pressure as zero at the surface, where z is zero, the constant will be zero, so the pressure inside the fluid, when it
Buoyancy
Battle in the Western Desert Campaign of the Second World War
Brigade, was caught on their start line at 22:00—zero hour—by an air attack and were scattered. Axis bombers destroyed a convoy of 25 British vehicles
Second_Battle_of_El_Alamein
Stability of an aircraft in the pitching plane
{\displaystyle \alpha _{0}} is included to account for camber, which results in lift at zero angle of attack. Finally q {\displaystyle q} is the dynamic pressure:
Longitudinal_stability
Powered lighter-than-air aircraft
from a lifting gas that is less dense than the surrounding air to achieve the lift needed to stay airborne. In early dirigibles, the lifting gas was
Airship
Physical property
extract the energy. The most common topology is the horizontal-axis wind turbine. It is a lift-based wind turbine with very good performance. Accordingly
Wind-turbine_aerodynamics
Hydrodynamics of screw propellers
around the vertical axis. The individual airfoil-shaped blades turn as the propeller moves so that they are always generating lift in the vessel's direction
Propeller_theory
Branch of mechanics concerned with balance of forces in nonmoving systems
acceleration equals zero, the system is either at rest, or its center of mass moves at constant velocity. The application of the assumption of zero acceleration
Statics
Rate of change of acceleration with time
adapts to the residual spring force, establishing equilibrium with zero net force and zero velocity. Consider the example of a braking and decelerating car
Jerk_(physics)
Unique point where the weighted relative position of the distributed mass sums to zero
time where the weighted relative position of the distributed mass sums to zero. For a rigid body containing its center of mass, this is the point to which
Center_of_mass
Device that transmits rotational power into linear thrust on a fluid
constant velocity along the axis of rotation and creating a flow around the propeller. A screw turning through a solid will have zero "slip"; but as a propeller
Propeller
Steel roller coaster at Fun Spot America Atlanta
Atlanta's arcade). The coaster twists through an off-axis hill, a right-hand turnaround, and a final zero-g roll. A second low hill leads riders into the coaster's
ArieForce_One
Mechanical bearing connecting two objects
connected by an ideal hinge rotate relative to each other about a fixed axis of rotation, and all other translations or rotations are prevented; thus
Hinge
Type of machine
Tower crane with "luffing" jib A tower crane rotates on its axis before lowering the lifting hook. Teleoperation tower cranes at a prefabricated framed
Crane_(machine)
to the zero position line. The pulse energy is kept constant, therefore the shortest pulses are also most intense producing most ions at the zero position
Bond_hardening
Aviation term for a corkscrew downward path
about the aircraft's longitudinal axis and a shallow, rotating, downward path approximately centred on a vertical axis. Spins can be entered intentionally
Spin_(aerodynamics)
Term for accelerations felt as weight in multiples of standard gravity
have if it were exclusively subject to that force. A three-axis accelerometer will output zero‑g on all three axes if it is dropped or otherwise put into
G-force
Curved path of an object around a point
it is known as an orbital revolution, because it is a rotation around an axis external to the moving body. Examples for orbits include the trajectory of
Orbit
Notation in physics and chemistry
theory, as the associated energy is zero. So for a given S, all of its MS values are degenerate. This degeneracy is lifted when spin–orbit interaction is treated
Molecular_term_symbol
System to maintain vehicle trajectory in lieu of direct operator command
three-axis autopilot adds control in the yaw axis and is not required in many small aircraft. Autopilots in modern complex aircraft are three-axis and generally
Autopilot
Inclination of road or surface other than flat
vehicle is inclined about its longitudinal axis with respect to the horizontal. If the bank angle is zero, the surface is flat and the normal force is
Banked_turn
Unpowered glider air sport
flexes up more than the left, creating dissimilar lift that rolls the glider to the right. Yaw The yaw axis is stabilized through the backward-sweep of the
Hang_gliding
Spinor topology
trace-zero Hermitian matrices to trace-zero Hermitian matrices must be unitary, it follows that every rotation also lifts to SU(2). However, each rotation is
Orientation_entanglement
Aerodynamic performance of an air or spacecraft
can no longer be increased at level flight is known as zero rate of climb and is caused by the lift of the aircraft getting smaller at higher altitudes,
Flight_envelope
Fundamental concept of classical mechanics
without the need to correct for acceleration. All frames of reference with zero acceleration are in a state of constant rectilinear motion (straight-line
Inertial_frame_of_reference
Propulsion of a vehicle by wind power
the lift coefficient to increase up to the point of aerodynamic stall along with the lift-induced drag coefficient. At the onset of stall, lift is abruptly
Sailing
Ongoing armed conflict in West Asia
throughout the Middle East. These proxy groups became part of the informal 'Axis of Resistance' committed primarily to countering American, Israeli, Saudi
2026_Iran_war
U V W Y Z See also References External links 0–0 See Zero–Zero 0–0–2 or 0–0–start See Zero–Zero–Two. 20 by 44 A pickleball court. Pickleball courts measure
Glossary_of_pickleball
2004 aviation accident in Missouri
engine thrust required. On a graph with airspeed on the x-axis and thrust required on the y-axis, the power curve is an upward-opening curve where a given
Pinnacle_Airlines_Flight_3701
Trolleybus and light rail operator in Mexico City
vehicle fleet consists exclusively of trolleybuses, light rail, and aerial lift vehicles, and in 2007 its network carried 88 million passengers, of which
Servicio de Transportes Eléctricos
Servicio_de_Transportes_Eléctricos
Going from flight to surface amid strong air currents angled from the runway
aircraft in flight that is pointed directly north along its longitudinal axis will, generally, fly in that northerly direction. However, if there is a
Crosswind_landing
Proposed type of space transportation system
space elevator, also referred to as a space bridge, star ladder, and orbital lift, is a proposed type of planet-to-space transportation system, often depicted
Space_elevator
Flow control device
a cam action during operation to lift the seat out of the seal resulting in less friction than is created in the zero offset design and decreases its tendency
Butterfly_valve
Facet of ballistics and aeronautics
Because the line of action is generally oriented nearly parallel to the roll axis, roll control usually requires the use of two or more separately hinged nozzles
Thrust_vectoring
Aircraft component
the rear of the aircraft will produce lift in the downwards direction. The elevator serves to control the pitch axis; in case of a fully movable tail, the
Stabilizer_(aeronautics)
Rotation of helicopter rotors by action of wind resistance rather than engine power
diagram). At the instant of engine failure, the main rotor blades are producing lift and thrust from their angle of attack and velocity. By immediately lowering
Autorotation
United States Navy fighter airplane
internal; up to 3 × 150 US gal (125 imp gal; 568 L) external drop tanks Zero-lift drag coefficient: 0.0211 Drag area: 7.05 sq ft (0.655 m2) Powerplant:
Grumman_F6F_Hellcat
Potentially hazardous near-Earth asteroid
semi-major axis of 0.92 AU to an Apollo-class orbit with a semi-major axis of 1.1 AU. Perihelion will lift from 0.746 AU to 0.895 AU and aphelion will lift from
99942_Apophis
American sci-fi TV series (2015–2019)
streaming service Amazon Prime Video, depicting a parallel universe in which the Axis powers of Nazi Germany and the Empire of Japan rule the world after their
The Man in the High Castle (TV series)
The_Man_in_the_High_Castle_(TV_series)
Application of mechanical dynamics to model the flight of space vehicles
thrust acting at a non-zero angle of attack (first term) and perhaps a slight amount of lift (second term), until a non-zero pitch angle is attained
Spacecraft_flight_dynamics
Japanese floatplane/land-based fighter
a mercury-tilt sensor, to enhance lift during tight turns. These automatically deploying flaps increased wing lift during high-G maneuvers, allowing a
Kawanishi_N1K
Machine that converts the energy of flowing or falling water into useful forms of power
of the wheel. This type of water wheel is the oldest type of horizontal axis wheel.[citation needed] They are also known as free surface wheels because
Water_wheel
Spacecraft launch or descent maneuver
A gravity turn or zero-lift turn is a maneuver used in launching a spacecraft into, or descending from, an orbit around a celestial body such as a planet
Gravity_turn
Boat or aircraft component
position—to zero, if desired. Thus the trim tab acts as a servo tab. Because the center of pressure of the trim tab is farther away from the axis of rotation
Trim_tab
Type of high-latitude satellite orbit
270° Inclination: 63.4° Period: 718 minutes Eccentricity: 0.74 Semi-major axis: 26,600 km (16,500 mi) The argument of perigee is set at 270°, causing the
Molniya_orbit
Aircraft component
position—to zero, if used correctly. Thus the trim tab acts as a servo tab. Because the center of pressure of the trim tab is further away from the axis of rotation
Vertical_stabilizer
Physical and science fiction concept
with some other force, such as electromagnetism, aerodynamic lift, or ion-propelled "lifters", which fly in the air by moving air with electromagnetic fields
Anti-gravity
Optical phenomenon of the sky
latter, this occurs when a single crystal is rotated around the appropriate axis/axes, or a chemical approach. A still further and more indirect experimental
Halo_(optical_phenomenon)
"Iran agreed to 'zero stockpiling' of nuclear material in US talks: Omani FM". The Hill. "Oman says US-Iran talks reach agreement on zero stockpiling of
2025–2026 Iran–United States negotiations
2025–2026_Iran–United_States_negotiations
Situation in which an astronomical object's orbital period matches its rotational period
synchronous rotation, the object takes just as long to rotate around its own axis as it does to revolve around its partner. For example, the same side of the
Tidal_locking
Activation of tension-generating sites in muscle
involuntarily (e.g., when attempting to move a weight too heavy for the muscle to lift) or voluntarily (e.g., when the muscle is 'smoothing out' a movement or resisting
Muscle_contraction
Buoyancy principle in fluid dynamics
force is positive, the object rises; if negative, the object sinks; and if zero, the object is neutrally buoyant—that is, it remains in place without either
Archimedes'_principle
Continuously computed dead reckoning
Inertial Measurement Unit chip. A TIMU chip integrates 3-axis gyroscope, 3-axis accelerometer and 3-axis magnetometer together with a highly accurate master
Inertial_navigation_system
President of the United States from 2001 to 2009
In his January 29, 2002 State of the Union Address, he asserted that an "axis of evil" consisting of North Korea, Iran, and Ba'athist Iraq was "arming
George_W._Bush
Aircraft which use flapping movement of the wings to generate lift
have a combined function of providing both lift and thrust. Theoretically, the flapping wing can be set to zero angle of attack on the upstroke, so it passes
Ornithopter
Point over which the aircraft would balance
are only performed along a single axis from the zero point of the reference datum that represents the longitudinal axis of the aircraft (to calculate fore-to-aft
Center of gravity of an aircraft
Center_of_gravity_of_an_aircraft
Branch of engineering and mathematics
{\displaystyle x} axis is the real axis and the discrete Z-transform is in circular coordinates where the ρ {\displaystyle \rho } axis is the real axis. When the
Control_theory
Non-orientable surface with one edge
lines, the stabilizer of the x {\displaystyle x} -axis consists of all symmetries that take the axis to itself. Each line ℓ {\displaystyle \ell } corresponds
Möbius_strip
Ground-launched missile designed to attack aerial targets
2K12 Kub, are specifically designed to be highly mobile with very fast, or zero, setup times. Many of these designs were mounted on armoured vehicles, allowing
Surface-to-air_missile
Telangana Legislative Assembly election held in November, 2023
Desam Party did not contest. INC leader Rahul Gandhi called the Kaleshwaram Lift Irrigation Project, the flagship scheme of the Bharat Rashtra Samithi government
2023 Telangana Legislative Assembly election
2023_Telangana_Legislative_Assembly_election
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ZERO LIFT-AXIS
ZERO LIFT-AXIS
Surname or Lastname
English
English : possibly from the vocabulary word gift used as a personal name, in the sense ‘gift of God’, with reference to a child. Compare Theodore. However, the name is most common in Cornwall and may be of Cornish origin.German : unexplained.
Male
Hungarian
Hungarian form of Latin Valentinus, BÃLINT means "healthy, strong."
Surname or Lastname
English
English : variant of Leaf.
Female
Greek
(ἩÏá½¼) Greek name derived form the word hÄ“rÅs, HERO means "hero." In mythology, this is the name of the lover of Leandros (Latin Leander).
Girl/Female
Ghana, Indian
Gift
Boy/Male
Arabic
Empty.
Boy/Male
Muslim
Leniecy
Boy/Male
Polish
Gift; hero.
Male
Finnish
Finnish form of German Erich, EERO means "ever-ruler."Â
Surname or Lastname
Jewish
Jewish : shortened form of some Ashkenazic surname such as Littman or Litwin.English : variant of Light ‘little’.Dutch and North German : from a short form of a Germanic personal name formed with liut ‘people’, ‘tribe’ as the first element.
Female
Hebrew
(לִי×ַתּ) Hebrew name LIAT means "you are mine."
Surname or Lastname
English
English : metonymic occupational name for a dresser of flax, from Middle English lynet, lynt ‘flax’.Dutch : from a short form of a Germanic name formed with lind (see Linde 1).Dutch : metonymic occupational name for a linen weaver or merchant.
Male
Spanish
Spanish name derived from Latin juniperus, JUNÃPERO means "juniper tree."
Surname or Lastname
English
English : topographic name for someone who lived by a crevice in rock, from Middle English clift ‘cleft’.English : probably a variant of Cliff.
Male
Finnish
Short form of Finnish Antero, TERO means "man; warrior."
Boy/Male
Arabic, Australian, German, Greek, Kurdish
Empty; Void
Female
Norse
Old Norse name derived from the word lif, LIFA means "life."
Male
Italian
 Short form of Italian Raniero, NERO means "wise warrior." Compare with another form of Nero.
Surname or Lastname
English
English : variant of Leaf.Jewish : variant of Lief.
Surname or Lastname
English
English : from Middle English lofte ‘upper chamber’, ‘attic’, possibly bestowed on a household servant who worked in an upper chamber, or used in the same sense as Loftus.Danish : habitational name from a place called Loft.
ZERO LIFT-AXIS
ZERO LIFT-AXIS
ZERO LIFT-AXIS
ZERO LIFT-AXIS
ZERO LIFT-AXIS
ZERO LIFT-AXIS
ZERO LIFT-AXIS
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