Signal square
Encyclopedia
A signal square is an aerodrome
equipment internationally defined at the annex 14 of the Convention on International Civil Aviation
by the International Civil Aviation Organization
.
It contains ground symbols to indicate visually the conditions on the aerodrome to over-flying aircrafts. There are four basic signals:
Aerodrome
An aerodrome, airdrome or airfield is a term for any location from which aircraft flight operations take place, regardless of whether they involve cargo, passengers or neither...
equipment internationally defined at the annex 14 of the Convention on International Civil Aviation
Convention on International Civil Aviation
The Convention on International Civil Aviation, also known as the Chicago Convention, established the International Civil Aviation Organization , a specialized agency of the United Nations charged with coordinating and regulating international air travel...
by the International Civil Aviation Organization
International Civil Aviation Organization
The International Civil Aviation Organization , pronounced , , is a specialized agency of the United Nations. It codifies the principles and techniques of international air navigation and fosters the planning and development of international air transport to ensure safe and orderly growth...
.
It contains ground symbols to indicate visually the conditions on the aerodrome to over-flying aircrafts. There are four basic signals:
- The red square
- The dumb-bell
- The landing T, showing the wind direction on an all-over landing field with the tail of the T pointing downwind. On airfields with runways it indicates the landing and take-off direction.
- The right hand circuitAirfield traffic patternAn airfield traffic pattern is a standard path followed by aircraft when taking off or landing, while maintaining visual contact with the airfield....
indicatorTraffic pattern indicatorIn aviation, a traffic pattern indicator is a L-shaped device which show the airfield traffic pattern to the in-flight aircraft over an aerodrome....