INFO Last updated on 20 APR 2023 PDF Version - Printable
GEN 2 TABLES AND CODES
GEN 2.1 MEASURING SYSTEM, AIRCRAFT MARKINGS, AND HOLIDAYS
UNITS OF MEASUREMENT
The units of measurements used in all Air and Ground Operations are in accordance with Annex 5. Listed bellow are the quantities in common use and their respective units of measurement:
|
For Measurement of |
Units Used |
| Distance used in navigation, position reporting etc, generally more than 2 nautical miles | Nautical miles and tenths |
| Relatively short distances such as those relating to aerodrome (e.g runway length) | Metres |
| Altitudes, elevations and heights | Feet, metres |
| Horizontal speed including wind speed | Knots |
| Vertical speed | Feet per minutes |
| Wind direction for landing and take-off | Degrees magnetic |
| Wind direction except for landing and take-off | Degrees true |
| Visibility including runway visual range | Kilometres |
| Altimeter setting | Hectopascal |
| Temperature | Degrees Celsius(Centigrade) |
| Weight | Metric Tons or Kilograms |
| Time | Hours and minutes, the day of 24 Hrs beginning at midnight UTC |
TIME SYSTEM
Co-ordinated Universal Time (UTC) is used by Air Navigation Services and in publications issued by the Aeronautical Information Service. Reporting of time is expressed to the nearest minute. Time checks to the Aircraft are accurate within 30 seconds.
Sri Lanka local time = UTC+ 5.30 Hrs.
GEODETIC REFERENCE DATUM
The published geographical co-ordinates indicating longitude and latitude in respect of Bandaranaike International Airport (including all NAV Aids located within 10NM of BIA) and ATS reporting points within Colombo FIR are expressed in terms of the World Geodetic system -1984 (WGS84) geodetic reference datum.
The geographical Co-ordinates in respect of the domestic airports are given in terms of the local reference datum (Everest 1830) and will be transformed into WGS-84 co-ordinates in due course.
Area of Application
Area of application for the published geographical co-ordinates coincides with the responsibility of the Aeronautical Information service, i.e. the entire territory of Sri Lanka as well as the airspace over the high seas encompassed by the Colombo Flight Information Region in accordance with the regional air navigation agreement.
AIRCRAFT NATIONALITY AND REGISTRATION MARKS
The Nationality Mark for aircraft registered in Sri Lanka is a combination of figure 4 and letter R. The Nationality mark is followed by a hyphen and a registration mark consisting three letters.
E.g. 4R-ULA
PUBLIC HOLIDAYS
Following are the public holidays declared for the year 2023.
|
Date / (Day) |
Name |
|
06 JAN 23 (FRI) |
Duruthu Full Moon Poya Day |
|
15 JAN 23 (SUN) |
Tamil Thai Pongal Day |
|
04 FEB 23 (SAT) |
Independence Day |
|
05 FEB 23 (SUN) |
Navam Full Moon Poya Day |
|
18 FEB 23 (SAT) |
Mahasivarathri Day |
|
06 MAR 23 (MON) |
Madin Full Moon Poya Day |
|
05 APR 23 (WED) |
Bak Full Moon Poya Day |
|
07 APR 23 (FRI) |
Additional Public Holiday For Sinhala & Tamil New Year Day Good Friday |
|
13 APR 23 (THU) |
Day prior to Sinhala and Tamil New Year Day |
|
14 APR 23 (FRI) |
Sinhala and Tamil New Year Day |
|
22 APR 23 (SAT) |
Id-Ul-Fitr (Ramazan Festival Day) |
|
01 MAY 23 (MON) |
May Day |
|
05 MAY 23 (FRI) |
VesakFull Moon Poya Day |
|
06 MAY 23 (SAT) |
Day following Vesak Full Moon Poya Day |
|
03 JUN 23 (SAT) |
Poson Full Moon Poya Day |
|
29 JUN 23 (THU) |
Id-Ul-Alha (Hadji Festival Day) |
|
03 JUL 23 (MON) |
Adhi EsalaFull Moon Poya Day |
|
01 AUG 23 (TUE) |
EsalaFull Moon Poya Day |
|
30 AUG 23 (WED) |
Nikini Full Moon Poya Day |
|
28 SEP 23 (THU) |
Milad-Un-Nabi (Holy Prophet's Birthday) |
|
29 SEP 23 (FRI) |
Binara Full Moon Poya Day |
|
28 OCT 23 (SAT) |
Vap Full Moon Poya Day |
|
12 NOV 23 (SUN) |
Deepavali Festival Day |
|
26 NOV 23 (SUN) |
Ill Full Moon Poya Day |
|
25 DEC 23 (MON) |
Christmas Day |
|
26 DEC 23 (TUE) |
Unduvap Full Moon Poya Day |
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