The units of measurement used in all air ground operations are in accordance with Annex 5. The quantities in common use and the units used for their respective measurements are listed as follows:
SUMMARY Units of Measurement |
|
Distance used in navigation, position reporting, etc.- generally in excess of 2 NM |
Nautical Miles and tenths(NM) |
Relatively short distances such as those relating to aerodrome(e.g. runway lengths) |
Metres(M) or Feet(FT) |
Altitudes, elevations and heights |
Metres(M) or Feet(FT) |
Horizontal speed including wind speed |
Knots(KT), Mach or km/h |
Vertical speed |
Feet per minutes |
Wind direction for landing and taking off |
Degrees Magnetic |
Wind direction except landing and taking off |
Degrees True |
Visibility including runway visual range |
Kilometres or Metres |
Altimeter setting |
Hectopascals (hPa) |
Temperature |
Degrees Celsius |
Weight |
Metric Tons or Kilograms |
Category of Aircraft |
Registration marks |
||
Glider |
0000-0599 |
||
Airship |
0600-0799 |
||
Airplane |
Piston Engine |
Single Engine |
1000-1799 |
Multi Engine |
2000-2799 |
||
Turbo-prop Engine |
Single Engine |
5100-5199 |
|
Twin Engine |
5200-5299 |
||
Three Engine |
5300-5399 |
||
Four Engine |
5400-5499 |
||
Turbo-jet Engine |
Single Engine |
7100-7199 |
|
Twin Engine |
7200-7299/7500-7599/7700-7799/7800-7899/8000-8099/8200-8299 |
||
Three Engine |
7300-7399 |
||
Four Engine |
7400-7499/7600-7699/8400-8499/8600-8699 |
||
Helicopter |
Piston Engine |
Single Engine |
6100-6199 |
Twin Engine |
6200-6299 |
||
Turbo Engine |
Single Engine |
9100-9199/9300-9399/9500-9599 |
|
Multi Engine |
9200-9299/9400-9499/9600-9699 |
||
Remarks |
Extra number will be assigned by considering the aircraft registration number |
Name |
Date/Day |
---|---|
New Year's Day Lunar New Year's Day(consecutive holidays) Anniversary of the Independence Movement General Election Buddha's Birthday Children's Day Memorial Day National Liberation Day Chuseok(consecutive holidays) National Foundation Day Hangul Proclamation Day Christmas Day |
1 JAN 24 JAN - 27 JAN 1 MAR 15 APR 30 APR 5 MAY (Substitute holiday 6 MAY) 6 JUN 15 AUG 30 SEP - 2 OCT 3 OCT 9 OCT 25 DEC |