QUANTITY |
UNIT OF MEASUREMENT |
Distance used in navigation, position reporting, etc.-generally in excess of 2 to 3 nautical miles | NAUTICAL MILES (NM) |
Relatively short distances such as those relating to aerodrome (e.g. runway lengths) | METRES (M) |
Altitudes, elevations and heights | FEET (FT) |
Horizontal speed, including wind speed | KNOTS (KT) |
Vertical speed | FEET PER MINUTE (FT/MIN) |
Wind direction for landing and take-off | DEGREES MAGNETIC |
Wind direction except for landing and take-off | DEGREES TRUE |
Visibility | KILOMETRES (KM) |
Runway visual range | METRES (M) |
Altimeter setting | HECTOPASCALS (hPa) |
Temperature | DEGREES CELSIUS (°C) |
Mass (Weight) | KILOGRAMES (KG) or METRIC TON (T) |
Time | HOURS AND MINUTES, THE DAY OF 24 HOURS BEGINNING AT MIDNIGHT (UTC) |
Visibility of less than 5 km may be given in metres. |
Co-ordinated Universal Time (UTC) is used in the air traffic and communication services and in documents published by the Aeronautical Information Services. When reporting time, the nearest full minute is used, e.g., 12 hr 40 min 40 sec is reported as 1241. Time checks to aircraft are accurate within 30 sec.
All published geographical coordinates indicating latitude and longitude are expressed in terms of local datum; except the coordinates which have been transformed into the World Geodetic System - 1984 (WGS - 84) are indicated by remarks.
The area of application for the published geographical coordinates coincides with the area of responsibility of the Aeronautical Information Services, i.e. the entire territory of Thailand as well as the airspace over the high seas encompassed by the Bangkok Flight Information Region in accordance with the regional air navigation agreement.
The nationality mark for aircraft registered in Thailand consists of the letters HS. The nationality mark is followed by a Hyphen and a registration mark consisting of 3 letters, e.g., HS-TDD.
NAME | Date |
---|---|
New Year’s Day | 1 January 2020 |
Makha Bucha Day | 8 February 2020 |
Substitution for Makha Bucha Day |
10 February 2020 |
Chakri Memorial Day | 6 April 2020 |
Songkran Festival Days | 13-15 April 2020 |
National Labour Day | 1 May 2020 |
Royal Coronation Ceremony |
4 May 2020 |
Visakha Bucha Day |
6 May 2020 |
H.M. Queen Suthida Bajrasudhabimalalakshana’s Birthday |
3 June 2020 |
Asarnha Bucha Day |
5 July 2020 |
Buddhist Lent Day |
6 July 2020 |
Substitution for Asarnha Bucha Day |
7 July 2020 |
H.M. King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua’s Birthday |
28 July 2020 |
H.M. Queen Sirikit The Queen Mother’s Birthday and National Mother Day |
12 August 2020 |
H.M. King Bhumibol Adulyadej The Great Memorial Day | 13 October 2020 |
King Chulalongkorn Memorial Day | 23 October 2020 |
H.M. King Bhumibol Adulyadej The Great's Birthday, National Day and National Father Day | 5 December 2020 |
Substitution for H.M. King Bhumibol Adulyadej The Great's Birthday, National Day and National Father Day |
7 December 2020 |
Constitution Day | 10 December 2020 |
New Year’s Eve | 31 December 2020 |