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 FL50. 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 all military airspace deactivated and LFA G 1 activated.

LFA G 1

LFA G 2

LFA G 2 is divided in 3 sectors: West, North and South, and opens up the airspace till FL70. 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 5.3-12.

LFA G 5

LFA G 5 is split up in 2 parts, but is considered as 1 sector only: both parts are always activated or closed together. LFA G 5 opens te airspace up to FL90. 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 50 - 90 with different QNH values.

 

90

2550

2590

2630

2670

2710

2740

2750

2800

2840

2880

2920

2960

80

2240

2280

2330

2370

2410

2430

2450

2490

2530

2570

2610

2660

70

1940

1980

2020

2060

2100

2130

2150

2190

2230

2270

2310

2350

60

1630

1670

1720

1760

1800

1820

1840

1880

1920

1960

2000

2050

50

1330

1370

1410

1450

1490

1520

1530

1580

1620

1660

1700

1740

 

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:  folder Luchtruimbestanden . The WE files contain the airspace during weekends, the WK file can be used on weekdays.

 

An overview of the boundaries of the LFA G sectors can be found here.

Liga van Vlaamse Zweefvliegclubs vzw

Drieskensstraat 46
2300 Turnhout

+32 (14) 89 44 60
info@lvzc.be

Ondernemingsnummer 0415.865.526
Rechtbank Antwerpen, afdeling Turnhout

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