IS Definitions Part 2

Question 1

Air traffic

Answer 1

All aircraft in flight or operating on the manoeuvring area of an aerodrome.

Question 2

Air-taxiing

Answer 2

Movement of a helicopter/VTOL above the surface of an aerodrome, normally in ground effect and at ground speed normally less than 37km/h (20kt).

Question 3

Air traffic advisory service

Answer 3

A service provided within advisory airspace to ensure separation, in so far as practical, between aircraft which are operating on IFR flight plans.

Question 4

Air traffic control clearance

Answer 4

Authorization for an aircraft to proceed under conditions specified by an air traffic control unit.

Question 5

Air traffic control service

Answer 5

A service provided for the purpose of:
a) preventing collisions:
1)between aircraft, and
2) on the manoeuvring area between aircraft and obstructions, and
b) expediting and maintaining an orderly flow of air traffic.

Question 6

Air traffic control unit

Answer 6

A generic term meaning variously, area control center, approach control unit or aerodrome control tower.

Question 7

Air traffic service

Answer 7

A generic term meaning variously, flight information service, alerting service, air traffic advisory service, air traffic control service (area control service, approach control service or aerodrome contol service).

Question 8

Air traffic services airspaces

Answer 8

Airspaces of defined dimensions, alphabetically designated, within which specific types of flights may operate and for which air traffic services and rules of operation are specified.

Question 9

Air traffic services reporting office

Answer 9

A unit established for the purpose of receving reports concerning air traffic services and flight plans submitted before departure.

Question 10

Air traffic services unit

Answer 10

A generic term meaning variously, air traffic control unit, flight information center or air traffic services reporting office.

Question 11

Airway

Answer 11

A control area or portion thereof established in the form of a corridor.

Question 12

Alerting Service

Answer 12

A service provided to notify appropriate organizations regarding aircraft in need of search and rescue aid, and assist such organizations as required.

Question 13

Alternate Aerodrome

Answer 13

An aerodrome to which an aircraft may proceed when it becomes either impossible or inadvisable to proceed to or to land at the aerodrome of intended landing where the necessary services and facilities are available, where aircraft performance requirements can be met and which is operationa; at the expected time of use.

Question 14

Take-Off Alternate

Answer 14

An alternate aerodrome at which an aircraft would be able to land should this become necessary shortly after take-off and it is not possible to use the aerodrome of departure

Question 15

En-route Alternate

Answer 15

An alternate aerodrome at which an aircraft would be able to land in the event that a diversion becomes necessary while en route.

Question 16

Destination alternate

Answer 16

An alternate aerodrome at which an aircraft would be able to land should it become eitehr impossible or inadvisable to land at the aerodrome of intended landing.