- Industry: Government
- Number of terms: 8785
- Number of blossaries: 0
- Company Profile:
Department of the Government of Canada responsible for developing regulations, policies and services of transportation in Canada. It is part of the Transportation, Infrastructure and Communities (TIC) portfolio. Transport Canada is based in Ottawa, Ontario
A circular pattern of air current created by the movement of an airfoil through the air when the airfoil is generating lift. As an airfoil moves through the atmosphere in sustained flight, an area of high pressure is created beneath it and an area of low pressure is created above it. The air flowing from the high-pressure area to the low-pressure area around and about the tips of the airfoil tends to roll up into two rapidly rotating vortices, cylindrical in shape. These vortices are the predominant parts of aircraft wake turbulence and their rotational force is dependent upon the wing loading, gross weight, and speed of the generating aircraft. The vortices from medium to heavy aircraft can be of extremely high velocity and hazardous to smaller aircraft.
Industry:Aviation
Turbulent air behind an aircraft caused by any of the following:
(a) wing-tip vortices;
(b) rotor-tip vortices;
(c) jet-engine thrust stream or jet blast;
(d) rotor downwash;
(e) prop wash.
Industry:Aviation
Condition concerning the safety of an aircraft or other vehicle, or of some person on board or within sight, but which does not require immediate assistance. The spoken word for urgency is PAN PAN, and it is pronounced three times.
Industry:Aviation
A heading given by a controller to a pilot on the basis of radar-derived information to provide navigational guidance.
Industry:Aviation
A powered, aerial vehicle that does not carry a human operator, uses aerodynamic forces to provide vehicle lift, can fly autonomously or be piloted remotely, can be expendable or recoverable, and can carry a lethal or non-lethal payload.
Industry:Aviation
The sensation of movement of the body or its surroundings which is at variance with the physical state.
Industry:Aviation
The distance at which prominent unlighted objects may be identified by day and prominent lighted objects may be identified by night.
Industry:Aviation
An atmospheric optical phenomenon of snow-covered regions in which the observer appears to be engulfed in a uniformly white glow. Shadows, the horizon, and clouds are not discernible; depth perception and the sense of orientation are lost; and only very dark, nearby objects can be seen. Whiteout occurs over an unbroken snow cover and beneath a uniformly overcast sky when, with the aid of the snowblink effect, the light from the sky is about equal to that from the snow surface. Blowing snow may be an additional cause.
Industry:Aviation
An expression that indicates inability to comply with a specific instruction, request or clearance.
Industry:Aviation
