The table of units of measurement shown below will be used by aeronautical stations within the Budapest FIR for air and ground operations.
| For measurement of | Units used |
|---|---|
Distances used in navigation position reporting, etc. | Nautical Miles and tenths |
Relatively short distances such as those relating to aerodromes (e.g. RWY lengths) | Metres |
Altitudes, elevations and heights | Feet |
Horizontal speed including wind speed | Knots |
Vertical speed | Feet per Minute |
Wind direction for landing and taking off | Degrees Magnetic |
Wind direction except for landing and taking off | Degrees True |
Visibility including runway visual range | Kilometres or metres |
Altimeter setting | Hectopascal |
Temperature | Degrees Celsius |
| Mass | Metric tonnes or Kilogrammes |
Time | Hours and minutes, beginning at midnight UTC |
Co-ordinated Universal Time (UTC) is used in communications by Air Navigation Services and in publications issued by the Aeronautical Information Service.
In reporting of time checks shall be given to the nearest half minute.
In Hungary, the local time is the Central European Time (CET).
The Central European Time corresponds to universal time plus one hour (UTC+1).
The Summer time corresponds to universal time plus two hours (UTC+2).
During the summer time period in Hungary the times given in brackets are applicable.
Example: 1130 - 1330 (1030 - 1230)
1130 - 1330 time period in UTC during winter period (outside Central European Summer Time)
(1030 - 1230) time period in UTC during summer period (during Central European Summer Time)
In the IAIP the expression “summer time” will indicate that part of the year in which the “daylight saving time” is in force. The other part of the year will be named the “winter time”.
The “summer time” will be introduced every year on the last Sunday in March at 0100 UTC, and it will cease on the last Sunday in October at 0100 UTC.
All published geographical coordinates indicating latitude and longitude are expressed in terms World Geodetic System - WGS 84 geodetic reference datum.
Projection is expressed in term of Universal Transverse Mercator (UTM).
Ellipsoid is expressed in terms of the World Geodetic System — 1984 (WGS-84) ellipsoid.
The World Geodetic System — 1984 (WGS-84) is used.
The area of application for the published geographical coordinates coincides with the area of responsibility of the Aeronautical Information Service, the entire territory of Hungary.
The vertical reference system corresponds to mean sea level (MSL).
The geoid model used is the Earth Gravitational Model 1996—(EGM-96)
The nationality and registration marks for aircraft registered in Hungary are the letters HA. The nationality mark is followed by a hyphen and a registration mark consisting of three letters.
E.g.: HA-LEK