drift angle


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drift angle

[′drift ‚aŋ·gəl]
(navigation)
The horizontal angle between the axis of a ship and the tangent to its path. Also known as drift correction angle.
The angle between the longitudinal axis of an aircraft and its path relative to the ground.

Drift Angle

 

in aviation, the angle between the longitudinal axis of an airplane and the airplane’s flight path relative to the earth. The drift angle is the result of a crosswind. It usually coincides with the angle between the flight path relative to the air medium and the flight path relative to the earth, since the slip angle is ignored (the slip angle is the angle between the airplane’s longitudinal axis and its flight path relative to the air medium). During a landing approach, a pilot compensates for the effect of a crosswind by slipping or by changing the heading by an amount equal to the drift angle.

drift angle

drift angle
The angle measured in degrees between the heading of an aircraft and the track made good.
References in periodicals archive ?
Figures 20 and 21 show that the surge speed changes to negative values and the drift angle exceeds the safety limit in the tracking control process of Methods A and B.
The safety limit of drift angle is carried out effectively for safety in the high-speed trajectory tracking process of hovercraft.
Although the ductility coefficient is relatively small, the story drift angle of elastic-plastic is between 1/29 and 1/45, which meets the requirement of the norm, that is, more than 1/50 [23,30].
The dissipation energy capacity of the structure at the drift angle is measured by the area of stress to strain enclosed.
The hysteresis curves of the shear wall are almost linear and the residual drift angle is less than 1/1000.
The ultimate drift angle [[theta].sub.u] is the average value of the pulling and pushing directions.
The drift speed of the ship and the drift angle depend on wind velocity.
Core orientation furnishes information on hole drift angle, drift direction, and the azimuth of the master scribe.
This model includes the approximation that the efficiency reaches its maximum for the common optimum drift angle [[theta].sub.d] = 3[pi]/4.
Figure 16 shows positive P versus [[theta].sub.L] skeleton curve based on the first cycle of each drift angle excursion.
1 includes the main conditions for ships and environment having influence on the maneuverability characteristics of ships: [alpha]--ruder turn angle; L, B, T--geometrical characteristics (length, width, draft etc.) of ships; [D.sub.s]--the diameter of ship propeller; [n.sub.s]--the turning velocity of propellers; [R.sub.a]--aerodynamic loads; [R.sub.v]--waves forces; [R.sub.S]--forces of the influence of shallow waters; v--ship speed; [beta]--ship drift angle; [omega]--the turning velocity of the ship.
The player earns drift points based on their drift angles, racing lines, and speeds within evaluation zones located at various turns on the course.