



F3B  Multi Task Thermal
Soaring Gliders


This is the oldest of all R/C
glider competition classes.
Initially it was a simple
"duration" event, but soon
expanded to a multi task event, in
which the pilot has to fly 3
different tasks, Duration,
Distance and Speed in each round.In the Duration task the goal is
to fly the glider for exactly 10
minutes and land as close as
possible to a designated spot. In
the Distance task the pilot has 4
minutes working time in which his
glider must cover as many times as
possible the official course of
150 meters in either direction.
Finally, in the Speed task the
gliders must cover 4 legs of the
aforementioned course as fast as
possible.For launching their gliders the
competitors use specially made
electric winches.What it is more challenging in
this class is the designing
approach of the model, as all
three tasks must be flown with the
same model, which must be trimmed
to achieve the minimum sinking
speed in the first, the minimum
gliding slope in the second, and
the minimum drag in the third. In
addition to these parameters, the
model must be light,
aerodynamically clean and
exceptionally strong to withstand
launching forces and speeds
exceeding 200 Km/h.World Championships in this class
are organized biannually, in
which more than 80 pilots are
competing, in more than 9 flying
rounds.
Peter Williams Launching
Richard Thompsons Pike with
Aneil Patel in the background
already on the course

