The reference site for F3Q activities in Belgium.

The F3Q (formerly F3I) is a model aeromodelling sport discipline governed by the code published by the Fédération Aéronautique Internationale (FAI – section 4).

This site is dedicated to enthusiasts of this discipline, whether they are glider pilots, tug pilots, or supporters.

The glider

With a minimum wingspan of 3.50 m, the models resemble scale models. Equipped with a transparent canopy, the fuselage must meet specific criteria: at least 4% of the wingspan for height and 3.2% for width. The weight cannot exceed 5 kg, and the maximum wing loading is 75 g/dm². The wheel provides 1 cm of ground clearance, and the towing hook is less than 10 cm from the nose. Telemetry, gyroscopes, or other gadgets providing information to the pilot or their assistant are prohibited. Only adjusting incidence angles and the center of gravity is allowed on the ground. The surfaces and incidences can be modified in flight.

The competitions

An F3Q contest includes at least two rounds, each consisting of two events:

1. Duration event:
   Starts with a towing phase. The tow plane is equipped with an altimeter that reduces engine power when a height of 200 m is reached. The flight and landing within a target area (20 m x 30 m) must last exact 8 minutes. Three or four pilots fly together, and 1000 points are awarded to the best in the group. The scores of other pilots are calculated in proportion to the best.
2. Speed event:
   Also begins with a towing phase up to 200 m altitude. The release occurs near a vertical plane, base A, located 250 m from another vertical plane, base B. The glider must make two round trips between these planes. The fastest pilot earns 1000 points. The scores of other competitors are calculated proportionally to the best performance.

The tugs

This group of pilots, essential for all towed glider disciplines, significantly contributes to the success of a contest. Their models, often specially built for towing, have powerful engines (25 to 50 cc). The pilot can release a glider at the exact spot chosen by the glider pilot at takeoff.

Rules and officials

The F3Q rules are available from the French Aeromodelling Federation. Organizers’ and technical commissioners’ guides are also available for those interested in hosting events.

Orientation and future

This year, rule amendments aim to enhance safety and fairness. A comprehensive F3Q guide will be published, including a tug pilot guide to assist in organizing contests.

F3Q and Europe

In addition to selection contests and championships, international competitions take place in France and abroad.

“Our ambition is to become an international category.”

Internet Links:
Forum F3Q: https://f3news.1fr1.net/c6-the-forum-f3q
Facebook: https://www.facebook.com/PlaneursF3Q/

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