Failsafe; Initial Setup - Horizon Hobby Spektrum AR637T Manual

Failsafe

In the unlikely event the radio link is lost during use, the receiver will enable
the selected failsafe mode. Smart Safe + Hold Last is the default failsafe mode
on the AR637T. Preset Failsafe and SAFE Failsafe modes are only available
through Forward Programming.
SmartSafe + Hold Last
If loss of signal occurs, SmartSafe™ technology moves the throttle channel to
the failsafe position (low throttle) set during binding. All other channels will hold
their last position. When the receiver detects the signal from the transmitter,
normal aircraft operation resumes.
Preset Failsafe
With preset failsafe, you can set the specifi c control surface positions you
want to use if the signal is lost. When the receiver detects the signal from the
transmitter, normal aircraft operation resumes.
Preset failsafe mode is only available through Forward Programming.
SAFE Failsafe
SAFE Failsafe mode will work to automatically level your aircraft if the signal is
lost. In the forward programming menu you can select the bank and pitch an-
gles the aircraft will attempt to maintain during failsafe. We recommend setting
bank and pitch angles so the aircraft fl ies a gentle gliding turn, preventing a fl y-
away. You must complete First Time SAFE Setup before this option is available.
SAFE Failsafe mode is only available through Forward Programming.
Testing Failsafe
Secure the aircraft on the ground and remove the propeller. Test Failsafe
settings by turning the transmitter RF output off and noting how the receiver
drives the control surfaces.
Receiver Power Only
• The servo ports will not have a control signal if the receiver is turned on
when no transmitter signal is present.
• All channels have no output until the receiver has linked to the transmitter.

Initial Setup

1.
Verify your transmitter is updated to the latest Spektrum AirWare™ software
to take advantage of Forward Programming. See your transmitter manual
for updating instructions.
2.
Install the receiver in your airplane.
3.
Bind the receiver to your transmitter.
4.
Complete the airplane setup on your transmitter including wing type, tail type, channel
assignments, mixing, sub trim and travel the same as you would for any other aircraft
without AS3X. Verify the center of gravity is correct and test fl y your aircraft.
IMPORTANT: Do not use open mixes for fl ight control surfaces when setting
up a model with the AR637T for AS3X and SAFE. Only use wing and tail type
options to confi gure fl ight controls, refer to your transmitter manual for more
information about wing and tail type features.
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