ALIGN 亞拓科技

When you put APS on T-REX 250, you have to set it inside the helicopter, and the tail servo mount and the gyro mount have to be dismantled.

 Please check whether your throttle calibration is not complete on 3gx.  And make sure your pitch and throttle curves are 0-25-50-75-100 when doing throttle calibration.  After completion you may change to your preference.

This is due to the heli not passing the vibration test. Please perform the vibration test again, and press the SET key after passing for APS to register the test result.

This mean your headspeed in the APS Flight mode differs than the headspeed during vibration test. Please revert to the original headspeed, or perform the vibration test steps again with the new headspeed.

Yes. Wait for GPS LED to turn steady green, lower throttle to lowest point and switch to APS mode, raise throttle stick slowly until heli lifts off.

Yes, but must land in Normal mode. If landing with idle-up mode, you must switch back to normal mode to cut power immediately after landing, or switch back to 3GX Flight mode.

APS system is very sensitive to vibrations on the heli. Therefore, please check your helicopter carefully for wear or damages that might cause excessive vibration to the APS. In addition, please slowly lift the heli to 50~100cm, and maintain leveled hover.

If vibration test has not been passed, or SET button wasn’t pressed to record the passing event, the LINK LED on APS will light red when the power of gyro is on, and APS funcation disabled. Should you try to switch 3GX flight mode into APS flight mode, the helicopter will wag its tail left/ right once, and remain in 3GX mode without going into APS flight mode.

Possible incorrect offset value of the magnetometer causing APS to receive incorrect information. Please perform the magnetometer calibration again, and reattempt the position hold. This could also be due to insufficient attitude gain, which can be alleviated by increasing the attitude gain. See page 35.

Due to the declination between true north and magnetic north, and APS sensor uses magnetic north, calibration is needed to achieve true heading of the magnetometer. If helicopter drifts to the right, reinstall the APS module so it rotates a certain degree counter-clockwise. Actual degree will depend on the level of drift during test flight. Normally 5 degrees deviation is the standard. If helicopter drifts to the left, rotate the GPS module clockwise.

No. Incorrect installation position will result in incorrect data, please install in the proper direction shown in the page 10-13. (Manuals Download)

If the RC controller has failsafe, and APS is setup properly per instruction, helicopter will automatically return home once signal is lost. For more information about Failsafe Protection, See page.28 & page. 48 (Manuals Download)

Check for any abnormal vibration source within the helicopter frame, or try mounting the APS control module with the included metal plate per the instruction for mounting on glow helicopter. See page 11. Lower the headspeed within APS Flight mode to improve vertical altitude vibration. It also can be due to insufficient Vertical Position altitude gain, which can be alleviated by increasing the attitude gain. See page 35. (Manuals Download)

The APS Lite can’t update to 1.3, it is only for APS version.

The APS Lite is for flybarless only.

1. APS height limit is 700m; APS lite is 400m.
2. In GPS mode, APS has return home and point to point automatic flight function; APS lite has only return home function.
Basically, they are under the same setup and install process!