Smesta

In air traffic control within NATO, a method of regulation of all identified air traffic within a designated airspace, conducted with electronic means by an air traffic control agency having the authority and responsibility therein.

The detailed and, usually, local direction and control of movements or manoeuvres necessary to accomplish missions or tasks assigned.

A system of accurate measurements used to determine the distances and directions or differences in elevation between points on the earth.

A unit combining the functions of an area control centre and a flight information centre.

A mode of control under which the aircraft commander selects his own speed, altitude and heading, and has freedom of action to accomplish the assigned task. The aircraft control unit will inform the aircraft of the current tactical picture and provide adequate warnings of hazards affecting aircraft safety.

A method of airspace control which relies on a combination of previously agreed and promulgated orders and procedures.

The use of interceptor aircraft, in peacetime, for the purpose of preserving the integrity of a specified airspace.

Control established by photogrammetric methods as distinguished from control established by ground methods. Sometimes called minor control.