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. [ 1 ] It contains ground symbols to indicate visually the conditions …

When displayed in a signal area, or horizontally at the end of the runway or strip in use, a right-hand arrow of conspicuous colour (Figure A1-9) indicates that turns are to be made to the right before landing and after take-off.

The Signal Square, or signal area, contained symbols to indicate visually to over-flying aircraft conditions on the aerodrome. It had pre-War origins, supplementing an earlier set of ground signals, and was intended for aircraft that carried no radio communications equipment (which included most light aircraft well into the 1960s).

From ICAO Annex 2: 4.2.3.1 A horizontal white dumb-bell (Figure A1-4) when displayed in a signal area indicates that aircraft are required to land, take off and taxi on runways and taxiways only....

If present, a signals square is a 12-metre square usually located close to the control tower or ATSU.

Jun 26, 2024 · When flying, there are a number of visual aids available to pilots: Signaling devices (such for instance, windsock indicator). Guidance signs (information, compulsory instructions, etc.). Signs painted over the pavement (runway, taxiways, aprons). Lights (runway, taxiway).

Nov 14, 2024 · Signal area A signal area need be provided only when it is intended to use visual ground signals to communicate with aircraft in flight. Such signals may be needed when the aerodrome does not have an aerodrome control tower or an aerodrome flight infor­mation service unit, or when the aerodrome is used by aeroplanes not equipped with radio.

Standardized universal signals for communications and aerodrome markings are required to be used for international operations of aircraft. The signals included in this advisory circular are published by ICAO in Annex 2 and provided here for use by pilots and inclusion in …

Denotes area to be protected for aircraft approaching or departing a runway. Located on taxiways crossing thru runway approach areas where an aircraft would enter an RSA or apch/ departure airspace. Mandatory: Holding position for ILS critical area/precision obstacle free zone.

Jun 6, 2022 · Where there are constructed gravel and natural surface manoeuvring areas, use only the gravel surfaces. (See ERSA FAC for any local information relating to the dumbbell signal.)