directional stability


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directional stability

[də′rek·shən·əl stə′bil·əd·ē]
(aerospace engineering)
The property of an aircraft, rocket, or such, enabling it to restore itself from a yawing or side-slipping condition. Also known as weathercock stability.

directional stability

directional stabilityclick for a larger image
The stability that concerns yawing about the normal, or vertical, axis. An aircraft is directionally stable if when it is temporarily deflected from its course, it tends to return to the original course without any correction applied by the pilot. Also called weathercock stability or yaw stability.
References in periodicals archive ?
In order to get the power to the tarmac there is a four-wheel drive and Audi's eight-speed tiptronic transmission system with a sports differential to apportion the torque between the rear wheels for optimum directional stability.
Full-stability solutions use more sensors than either automatic brake or roll-only stability components, creating a comprehensive system capable of addressing both roll and directional stability.
Improvements have been made in directional stability, the friction coefficient of the wheel bearings, tyre noise and weight, which has been reduced by two kilos on the front suspension alone.
Contemporary steering systems aid in achieving agility and directional stability through the use of several assistance systems.
It has very good directional stability and even in the corners it doesn't feel jittery.
If so, the system will reduce the brake pressure, thus preventing loss of directional stability and road holding.
The aim being to provide good directional stability, road-holding and comfort.
Among the topics are analyzing power supply maintenance in transport telematics systems, creating terrain maps for unmanned ground platforms, experimental research on the directional stability of articulated tractors, a reliability model of motorway emergency communication systems, an automatically controlled anti-collision maneuver and its numerical simulation with disturbances, predicting the spatial orientation of a ship by means of neural networks, characterizing the matrix game sensitivity of the safe passing of ships at sea, analyzing parameters of the impact of a traveling wave on the speed of a biomimetic underwater vehicle, and evaluating he stiffness of fire rescue robot suspension with hydropneumatic components.
When deployed at high speeds, the spoiler increases downforce on the rear axle and ensures perfect directional stability when driving fast.
Vertical fins provide aircraft with directional stability.
Longitudinal grooves--the ordinary way to ensure directional stability, transverse ones--the ordinary way, as well, to destroy the water film causing hydroplaning.
The system gives the driver effortless steering at low speeds as well as unbeatable directional stability on the open road.
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