Horizon Hobby Hobby Zone Apprentice STOL S 700mm Manuel D'utilisation page 17

Low Voltage Cutoff (LVC)
Low Voltage Cutoff is a function built into the electronic speed control to
protect the battery from over-discharge. When the flight battery charge is low,
LVC limits power supplied to the motor so the flight controls receive sufficient
energy to safely land the aircraft.
When LVC engages, the aircraft will slow and the motor will begin to pulse.
When the motor power decreases, land the aircraft immediately and charge the
flight battery.
NOTICE: Repeated flying to the low voltage cutoff will damage the battery.
Trimming the Aircraft
Adjusting Trim in Flight
If your aircraft does not fly straight and level at half throttle with the sticks at
neutral, fly into the wind and adjust the trim sliders as indicated in the table
until the aircraft maintains a reasonably straight and level flight path.
• Trimming is best done in calm wind conditions.
• The SAFE flight mode switch should be set to Experienced mode (switch B,
position 2) before adjusting the trims.
After the aircraft is trimmed in flight, land the aircraft and proceed to the
Manually Adjusting Trim section to re-center the servos and set the trim
mechanically.
The included DXS transmitter features electronic trim buttons. The transmitter
emits a faint beep with each click of the trim buttons in either direction.
Holding the button in either direction quickly adjusts the trim several steps
until the button is released or until the trim reaches the end of its travel. If the
trim button does not beep when clicked, the trim is at the far end of its travel.
Center trim is indicated by a slightly louder beep.
TIP: Trim the aircraft at sufficient altitude of about 100' (30 meters). Having
an experienced flight instructor trim your aircraft during the first flight is
recommended.
Control Surface Centering
Before the first flights, or in the event of an accident, make sure the flight
control surfaces are centered. Adjust the linkages mechanically if the control
surfaces are not centered, avoid excessive use of transmitter sub-trims. Control
surface centering must be done with SAFE off, and AS3X not active. Keep the
throttle at zero after powering on to prevent AS3X from activating.
IMPORTANT: Enable throttle cut to help prevent accidental throttle activation.
1. Verify the trims and subtrims on your transmitter are neutral.
2. Connect a battery to the model with SAFE off and keep throttle at zero.
3. When needed, use a pair of pliers to carefully bend the metal linkage (see
illustration).
4. Make the U-shape narrower to make the linkage shorter. Make the U-shape
wider to make the linkage longer.
Aircraft Drift
Centering Controls After First Flights
For best performance with AS3X, it is important that excessive trim is
not used. If the aircraft requires excessive transmitter trim (4 or more clicks
of trim per channel), return the transmitter trim to zero and adjust the linkages
mechanically so that the control surfaces are in the flight trimmed position.
17
Required Trim
Elevator Trim
Elevator Trim
Aileron Trim
Aileron Trim
Rudder Trim
Rudder Trim
Apprentice STOL S 700mm
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