This guide is not an official document and does not provide a complete overview of the Belgian airspace. It only differentiates between controlled and uncontrolled airspace and does not explain the different classes of controlled airspace. More detailed information can be found in the AIP. You can find a copy of the AIP on every airfield.

Uncontrolled airspace in Belgium

Military airspace

During the week, a large part of the airspace is used by the military. During weekends and legal holidays, these military airspaces below 4500ft become uncontrolled airspace. Exceptionally, these airspaces can still be active. This activity will always be announced by NOTAM. It is the responsibility of the pilot to check if an airspace is active or not. More information can be obtained at the Flight Information Centre (phone: +32 2 206 27 25) or during flight on the Brussels Information frequency 126,900 MHz.

Map 1 R-zones

The LFA G system

The abbreviation LFA G stands for "Low Flying Area class G", an area of uncontrolled airspace at low altitude. Do not confuse this with the military LFA's on your maps: these are training areas for military jets at very low altitude.

The LFA G transforms certain parts of controlled airspace into uncontrolled airspace. The LFA G is divided in 5 sectors. One or more of these sectors can be activated. LFA G 2 through 5 have to be activated on explicit request of the 'Liga van Vlaamse Zweefvliegclubs'. If one of these sectors is active, this will be published on our website (http://www.lvzc.be/). If no information is published, and all military airspace is closed, you can assume only LFA G1 is active.

The activation can also be checked with the Flight Information Centre (phone: +32 2 206 27 25) or by radio on frequency 126.9 MHz.

LFA G 1

LFA G 1 automatically becomes active by day outside the hours of military activity, and opens the airspace up to FL55. No request has to be made by the clubs or the 'Liga'. There is no notification if LFA G 1 is active. BUT: exceptionally it is possible that certain areas are excluded from the LFA G 1. This will be announced by NOTAM.

On the map below, you can see the situation with military CTRs and TMAs deactivated and LFA G 1 activated. Check activation of EBBL and EBFS during weekends. P, R, D zones not depicted on the map below. Local gliding zones not depicted on the map. Always check your NOTAMs. The only official source for aeronautical information is the AIP, so use the map below at own risk!

 

LFA G 2

LFA G 2 is divided in 3 sectors: West, North and South, and opens up the airspace till FL75. These sectors are shown on the map below. The activation has to be requested by the 'Liga' and the active sectors will be published on the website. These 3 sectors can be activated separately from each other. So it is possible that LFA G 2 South is active, but not West and North.

LFA G 2

LFA G 3

This LFA G sector is a local fly-out sectors for the clubs of Verviers and will not be discussed here. More information can be found in the AIP ENR 5.5-2.

LFA G 5

LFA G 5 is split up in 2 parts, West and East. LFA G 5 opens te airspace up to FL95. The activation is published on the website.

LFA G 5

Altimeter settings

You might have noticed the upper limit of the LFA G sectors are published as FL (Flight Levels). Since it is practically impossible for a glider pilot to change his altimeter setting from QNH to 1013.25 and back, a conversion of the upper limits to the corresponding QNH altitude is made every morning.

On the website, you will see, together with the activation of a sector, the corresponding altitude (in meters) of the upper limits. Do not forget to substract the height of your starting point if you are flying on a QFE altimeter setting.

But remember: this is not a legal way of working. Normally, you should set your altimeter to the 1013.25 hPa setting when flying above 4500 ft MSL.

The table below shows the altitude (in meters) of the flight levels 55 - 95 with different QNH values.

 

FL95

2680m

2730m

2770m

2820m

2860m

2890m

2910m

2960m

3000m

3050m

3090m

3140m

FL85

2380m

2420m

2470m

2510m

2560m

2590m

2600m

2650m

2700m

2740m

2790m

2830m

FL75

2070m

2120m

2160m

2210m

2250m

2280m

2300m

2350m

2390m

2440m

2480m

2530m

FL65 

1770m

1810m

1860m

1900m

1950m

1980m

2000m

2040m

2090m

2130m

2180m

2220m

FL55 

1460m

1510m

1550m

1600m

1640m

1670m

1690m

1740m

1780m

1830m

1870m

1920m

QNH

990

995

1000

1005

1010

1013

1015

1020

1025

1030

1035

1040

 

All altitudes below 4500 ft can be converted to meters as follows:

 

Altitude in feet

2000

2500

3000

3500

4000

4500

Altitude in meters

610

760

910

1060

1210

1370

 

Airspace files for Belgium can be found here: Luchtruimbestanden. The WE files contain the airspace during weekends, the WK file can be used on weekdays.

Liga van Vlaamse Zweefvliegclubs vzw

Postadres:
Roklijf 37
9300 Aalst

Maatschappelijk adres:
Hannuitsesteenweg 350
3300 Goetsenhoven (Tienen)

+32 (0)470 78 48 03
info@lvzc.be

Ondernemingsnummer 0415.865.526
Rechtbank Antwerpen, afdeling Turnhout

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