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Old Jul 29, 2015, 09:08 PM
creapyd is offline
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United States, MN, Minneapolis
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Help!
Falling out of the sky. It always rolls to the left?

H-King Color 250 quad frame with PDB board

AfroFlight Naze32 Acro AbuseMark FunFly Controller

Turnigy Multistar 6A V2 ESC With BLHeli and OPTO 2-3S

Turnigy Multistar 1704-1900Kv 12 Pole Multi-Rotor Outrunner V2

OrangeRx R110X DSMX/DSM2 Satellite Receiver.

5x3 gws style props (came with frame)

3s 2200mah batteries.


This is my first "real" quad. 60% of the time I can fly with zero problems and everthing is great.

40% of the time it falls out of the sky for absolutely no reason at all as far as I can tell.

It always rolls left when it falls out of the sky. I've swapped receivers from a real spektrum DSM2 receiver to the orangeRX one, and that didn't change anything. Nothing is blinking on ether the Naze or the receiver. battery power is just fine 80%. motors / escs are well under tolerances.

I've been flying RC for 8 years and i'm a developer so I mostly know what i'm doing, but these quads are new to me, and I have zero idea how to go about debugging this. It's infuriating because I can fly out 4 batteries in a row with zero problems one day, then the next it falls out of the sky every 3 minutes.

Help?
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Old Jul 30, 2015, 12:25 AM
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Any possibility of interference from a nearby, high-powered Wi-Fi source?
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Old Jul 30, 2015, 01:18 AM
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Dude, get BlackBox, find out FOR SURE what's going on.
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Old Jul 30, 2015, 07:54 AM
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No. I've been flying spektrum at this club for 8 years and have never had an interference problem.

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Originally Posted by rodman99999 View Post
Any possibility of interference from a nearby, high-powered Wi-Fi source?
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Old Jul 30, 2015, 08:31 AM
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The FC's Firmware does a Gyro cal during processor bootup. If you move the copter during the time it is doing the Gyro cal it will not fly properly.
Ensure it is NOT moving or do a manual Gyro Cal with the stick command.

Could be a bad solder joint/connector between ESC and motor.
Could be a bad ESC or a bad motor or the motor mounting screws sometimes touch the motor coils.
Re-check these on the left side.
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Old Jul 30, 2015, 09:09 AM
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6a esc + 2200mah battery?
Heavy thing with weak esc's?
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Old Jul 30, 2015, 09:12 AM
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The total amps at full throttle is only about 16amps so about 4amps per ESC. and when it's NOT falling out of the sky it flys very well.

nether the motors or the ESC's are anywhere close to hot.

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6a esc + 2200mah battery?
Heavy thing with weak esc's?
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Old Jul 30, 2015, 09:14 AM
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I should note that my flying buddy has the exact same quad, with the exact same setup and has had zero issues.
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Old Jul 30, 2015, 09:26 AM
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Then thats not your issue.
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