User Manual

11
Assembly instructions
5. Assembling the wings
As shown in
Fig. 8
, insert the fuselage between the wings until the
canopy is aligned with the provided recess. Now push the wing unit
sideways onto the fuselage and x it into position with the screws
⓭
and
⓮
.
6. Assembling the undercarriage
Insert the pre-assembled rear undercarriage
⓾
, as shown in
Fig. 9
, through the rudder hinge and tighten both screws
⓯
with a cross-tip screwdriver (size PH0).
The main undercarriage is inserted beneath the heads of the nylon screws
at the front and clipped into the closure at the rear. To do so, please refer
to
Fig. 10
. Now tighten the screws slightly. When disassembling, loosen
the screws slightly (they do not always have to be unscrewed fully) and
release the closure at the rear. The undercarriage can now be removed.
7. Establishing the aileron linkages
The elevator linkage is shown in
Fig. 12
. Unscrew the grub screw of
the pushrod connector (using the enclosed hex wrench
⓱
) as far as
necessary to guide the end of the pushrod through the hole. Arrange the
elevator in a line with the tailplane n. A ruler or set square are a great
help when doing this.
Fig. 13
shows connection of the rudder. The same applies here as with
the elevator.
Insert the aileron pushrods as shown in
Fig. 14
. Initially set the lower
aileron ush with the wing. Subsequently thread the aileron connector
⓲
through the pushrod connectors and tighten the grub screw on the
lower one. The upper aileron can now be adjusted. Subsequently carry
out the same procedure on the other side until all the rudders have been
linked. Now it is time to adjust the deection sizes. Please adjust them for
the initial ight according to our recommendations.
• Elevator +25 mm/-25 mm 30%Expo
• Rudder +30 mm/-30 mm 20%Expo
• Aileron +15 mm/-14 mm 30%Expo
(measured on the lower wing)
8. Installing the propeller and the spinner
Seeing as the motor screws are still freely accessible, make sure they
have been tightened correctly. Although this is actually part of the preight
check, it is no longer possible once the propeller and the spinner have
been installed. The propeller is installed on the motor shaft as shown
in
Fig. 15
. We recommend balancing the propeller with our propeller
balancer # 332355 prior to assembly. Tighten the propeller nut rmly. The
spinner is simply attached to the spinner driver from the front. Now check
the gap between the fuselage and the spinner by turning the propeller
manually. The spinner must not come into contact with the fuselage and
should run smoothly. Please disconnect the battery beforehand to ensure
your safety!
9. Adjusting the center of gravity
The center of gravity can be adjusted by moving the drive battery.
This procedure should be done carefully as it is crucial for the subsequent
ight characteristics of the model. The position of the center of gravity is
13 mm in front of the carbon ber spar of the upper wing. Support it with
your ngertips. Now move the battery until the nose of the model points
downward slightly as shown in
Fig. 16
. Once set up like this, you can
calmly proceed to the initial ight.
10. Preight check
However, before the initial ight, always carry out a preight check.
• Check all the screws, including the grub screws, and retighten them,
if necessary
• Check the rods, they should never come into contact with other parts
• Undercarriage properly engaged
• Use
Fig. 17
to check the symmetry of the model
• When checking the rudder, also check the directions of rotation and resets
• Caution: Do not connect the battery until the transmitter is switched on
and the operating element for the motor control is set to “Off”.
• Make sure the motor is running correctly (unbalance) and check the
motor rotation direction
• Perform a range test
11. Initial ight
If your model is in perfect working order, the weather conditions are
suitable and your transmitter and drive batteries are fully charged, you
can nally get started.
Position TOMMY jr. with its nose facing the wind and accelerate slowly.
After rolling a short distance, it will take off. Once it has climbed to a safe
altitude, you can test the rudder reactions and slow ight characteristics.
During the initial ight, always remember to land in good time to avoid
any unnecessary stress caused by the motor being cut off by the voltage
protection. Gradually adjust the rudder deections and the center of gravity
as desired during subsequent ights.
We hope you enjoy your TOMMY jr. and wish you lots of fun ying it.
Born to Fly!
The Model Team
EN