Inter-Ex 2026 at Havay (Belgium)

40th edition on September 5th and 6th, 2026

The Model Club Havay will host this edition.
Model Club Havay
Model Club Havay

The Inter-Ex 2026 will take place on Saturday 5th and Sunday 6th September, and as usual early pilots are already welcome on Friday 4th September.

As we informed in November, the Inter-Ex 2026 will take place in Havay, Belgium, near Mons, on the Franco-Belgian border. The Model Club Havay will kindly host our event. The club has permits, publicity and spectator security in place, so Inter-ex 2026 will likely be an event also open to the public. The club offers great facilities, space for camping and a lot of experience with organising events.

Terrain Model Club Havay

Some information to begin with, more details will follow as they come in:
- Camping is possible with tents, caravans or campers on the field.
- The club will provide electricity by a generator and toilets.
- The co-ordinates of the airfield are: 50.35264, 3.99809
- The club a has payment system for convenient handling of all necessary transactions in one place.
- The club will most probably organise the catering with the use of a foodtruck.

Model Club Havay

We are looking forward to an Inter-Ex with many pilots, many creative ideas and the best possible collegial spirit.

We will return with more information and a link to the subscription form in April or May, but if you have any questions at this moment, please feel free to contact us.

Airplane swarm in flight (Special event)

For this year, we abandoned the special theme for your designs, but we will invite everyone to participate in one special event, the multi-plane flight. We would like to see as many planes as possible in the air at the same time. Our ambition is to fly with all available pilots and to use simpler planes for this purpose. Many of us already have a plane for the Foxgame. For those who do not, we propose to build one of the following planes. They are all constructed in Depron and can be built in a weekend.
Of course, the event is open to all models but there could be collisions so it is best to plan a basic model.

Dogfight Dogfight

The proposed plans
The Karate and the KungFu are well-known designs by Thomas Buchwald and the plans are available as downloads through the following photos-links:
Plan KungFu sur Jivaro-Models Plan KungFu chez FlugModell
Plan Karate sur jivaro-models   Plan Karate chez FlugModell

The next two planes have been designed by Peter Lambooy. The plans, as well as pictures of the models, are attached below.
Zero Sum
Easy to fly and very tough. Designed for the Foxgame, flies very forgivingly. The design has been kept robust and easy to build. The plan is available as PDF as well as DXF through this photo-link:
Zero Sum de Peter Lambooy
ZS Aerobatic
The aerobatic version of the Zero Sum. This version is more elegant, has a rudder and flies very neutral. The plan is available as PDF as well as DXF through this photo-link:
  ZS Aerobatic de Peter Lambooy

David Laurendeau and Thomas Guillier designed the Rillettes Fighters, two warbird-style aircraft for the Foxgame, easy to build and well-suited to this event. The plans and STL files can be downloaded by clicking on the image. Plan Rillettes Fighters

Finally, we created a Whatsapp group "Inter-Ex Friends & Info", where everyone can share his creative ideas and future projects for Inter-Ex. As organisation, we also share the latest information in this group. We highly recommend joining this group, please use the following link:

Groupe Inter-Ex WhatsApp
To register, simply click on the link below to access the form It is not yet active.
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Inter-Ex is the world of those devoted to experimental modelling. Starting in the eighties in Germany, Belgium and Holland a steady group of "experimental modellers" got together because of their mutual interest.

To realise "off the beaten track" ideas by creating own structures and bring it to fly.

The idea must not necessarily come from us, there are more modellers in the world than truly original ideas.

The structure is the builders choice, often based on proven methods. Than we build the experiment by ourselves.

And the the great moment comes: Does it fly or not. sometimes it does, sometimes not - but this is the experimental idea we love so. In the mean time Inter-Ex is well known in great parts of Europe.


Contacter l'organisation : Peter Lambooy

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