13
13
13
13
the
the
the
the model
model
model
model”
”
”
” in
in
in
in the
the
the
the Safety
Safety
Safety
Safety Notes
Notes
Notes
Notes before
before
before
before attempting
attempting
attempting
attempting to
to
to
to fly
fly
fly
fly the
the
the
the Jas
Jas
Jas
Jas 39
39
39
39 Jet
Jet
Jet
Jet for
for
for
for
the
the
the
the first
first
first
first time.
time.
time.
time.
-
For the first flight you should wait for a relatively calm day with no more
than a gentle breeze.
-
A good flying site is a large, flat, open field; well away from trees, fences,
high-tension overhead cables and other potentially dangerous obstacles.
-
Carry out a complete check of the working systems.
-
We recommend that you ask an experienced modeler to help you initially;
to give the model a fairly powerful hand-launch.
-
The model must be launched directly into any existing wind.
-
Switch the motor on, and launch the airplane strongly into the wind, with the
fuselage and wings level.
-
Allow the Jas 39 Jet to fly straight and level initially, do not try to turn it
when it is close to the ground.
-
Adjust the trims if necessary so that the model settles into a steady climb.
-
Check the model’s response to control commands from the transmitter. You
may need to increase or reduce the control surface travels once the model
is back on the ground.
-
Take the airplane up to a safe height and check its stalling speed.
-
Keep the speed well up on the landing approach to avoid stalling.
-
If you had to move the trims during the flight, correct the mechanical
linkages before flying again. This allows you to re-centre the trims, so that
full trim travel is available for subsequent flights.
-
We reserve the right to introduce technical modifications and suggest that
you check our website for updates.