User Manual

RTF/BNF Basic

Carbon Cub S2

Compass Calibration

Compass calibration might be required after installing the GPS module,

before ight. The aircraft will automatically enter compass calibration on the

rst power up after the GPS module is installed, after binding.

IMPORTANT: The aircraft must be outside and needs to acquire a GPS lock

in order to begin compass calibration. The aircraft will not enter compass

calibration mode until the GPS lock is established.

Perform the compass calibration before the rst ight or to correct the

heading during auto landing if it varies signicantly from the heading set

during takeoff.

Before calibration GPS lock must be established for your location:

1. Remove the propeller if it is installed or activate throttle cut.

2. Powe ON the transmitter and receiver and set the model on the ground

on its wheels. The aircraft’s elevator will slowly move up and down until

GPS lock is established. When nished the elevator will move up and

down once quickly and center.

3. Power OFF the receiver and then the transmitter.

Once initial GPS lock is established Compass Calibration can be

performed.

1. With the transmitter trims centered, power ON the transmitter and the

aircraft while holding the transmitter sticks as shown. The aircraft will

indicate the GPS is searching for satellites by cycling the elevator up

and down. Continue to hold the transmitter sticks as shown.

2. After satellites are acquired, the aircraft will signal it has entered

compass calibration mode by the following:

-The ailerons will cycle left and right slowly.

-The LED will ash red and blue.

3. Once in calibration mode, the throttle is not active and the transmitter

sticks can be released. The transmitter must remain powered ON.

4. Flip the aircraft twice nose over tail as shown.

5. Turn the aircraft 90 degrees and roll the aircraft twice, as shown.

6. Turn off the transmitter.

7. Wait 3 seconds and turn OFF the aircraft.

CAUTION: Keep aircraft away from magnetic sources such as

cameras, camera mounts, speakers etc. These may interfere with

the GPS system and loss of control may result.

Compass Error (LED Flashing Red and Blue)

If at any time you experience no throttle response after power up and the

ailerons are deected full right and the LED is ashing red and blue, the

aircraft is indicating a compass error. This may be due to a lost GPS signal

or from powering on the aircraft at a new ying location. Disconnect the

ight battery and perform the compass calibration procedure.

2 Full Rotations