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Carbon Cub Mystery

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Engine Doctor21/04/2019 13:15:54
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2252 forum posts
24 photos

Hi all I'm Hoping that someone out there will have come across this problem and know the answer. One of our member brought his Hobbyzone Carbon Cub S safe to the field today . We followed all the instructions for the GPS initiation and all appeared OK. On powering up the motor pulses , an indication of low battery according to the instructions . Batteries checked , correct battery capacity etc and all Cells are fine and in good health .We switched off the GPS system and power is fine and model flies well but as soon as the GPS is activated the motor pulses again . We would like to get it sorted as the owner is disabled and with this working he would be able with a little help from his dad fly without relying on a club instructor being there His Dad , also a member has studied the trouble shooting in the instruction book as have we but cant find anything relating to this problem . Any ideas .

Denis Watkins21/04/2019 14:04:48
3736 forum posts
178 photos

You may have seen this in troubleshooting

Coiled leads can induce magnet fields

Having the compass too close to a magnetic source

Rectify notes below

Deactivate GPS system while in flight and land the aircraft. Remove any

possible magnetic sources such as cameras, camera mounts, speakers

etc. Unplug and reconnect flight battery to reactivate GPS system for next

flight. Perform compass calibration before flying again

Denis Watkins21/04/2019 14:57:39
3736 forum posts
178 photos

I meant to add that if the GPS was a problem

Then Autoland may too be accessing the throttle out of sequence or haphazardly

As the Autoland max throttle is set by the user

The plot thickens

Start from scratch

Reset the Compass

Be sure the throttle is down and not moved, and all controls are centred

Edited By Denis Watkins on 21/04/2019 15:03:18

Engine Doctor21/04/2019 18:01:57
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2252 forum posts
24 photos

Thanks Dennis will check autoland settings . Its the pulsing throttle that a bit odd as it definitely says this is low battery warning ?

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