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APM 2.5 2.9.1.b throttles down and lands by itself?

Started by Angus Allen. Last reply by jose 9 hours ago. 11 Replies

APM 2.5 Quad on firmware 2.9.1.b throttles down and lands by itself even while applying more throttle in stab mod? It throttles back and lands as if the apm is telling it to like in rtl mode but from…Continue

Tags: fail, problem, issue, 2.5, apm

Building Copters with Round Tubes - Stronger, Lighter, Easier to Mount Motors than Square Tubes

Started by Forrest Frantz. Last reply by Hugues on Wednesday. 488 Replies

Round tubes offer the following pros:handle twist better than square tubes.  Thus for the strength, are far lighter.are more readily available (pipes, tubes, arrows, kite frames, golf clubs and…Continue

Compass interferences

Started by Cala. Last reply by mP1 on Wednesday. 38 Replies

I have an APM2.5 with internal compass, my compass motor interference is a little high 30-40% I calibrate compass, etc. but always the copter turns 20-30 degrees rigth when I take off and stays…Continue

Strange behavior

Started by Anton Khrapov. Last reply by Anton Khrapov on Tuesday. 5 Replies

Hi,I have just finished re-building my hexa and on the first flight noticed a very strange behavior (which caused a big crash already).First, yaw drifts. It happens all the time, and in different…Continue

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Comment by droner on December 18, 2012 at 9:55am

This is the same set up as I have and the 11x4.7 fit fine on mine. You may want to reach out to 3dr or udrones and ask them what is up. It would be nice if they provided some type of guide for the set up even when they are RTF but i guess thank goodness for the community. 

Comment by Andrew McKinstry on December 18, 2012 at 9:40am

p props in correct location now.. clearance still an issue

Comment by Andrew McKinstry on December 17, 2012 at 7:33pm
Hmm. 3DR sold me the unit with motors installed and also ordered the large prop from them@ same time..

JDrones
Comment by Jani Hirvinen on December 17, 2012 at 7:00pm

Andrew. Looks like you have a big problem. I am not sure if 3DR frames are designed for big motors and big propellers but way how they are in your hexa is bad and you cannot use it like that. all jDrones frames are fully tested with 12" propellers. I would suggest to use only 10" props on that your current hexa.

Comment by Andrew McKinstry on December 17, 2012 at 10:10am

Hello.. Shiny new hexa with all the toys about to leave bench (I hope).. however prop clearance issue! Or am I missing something.. 880 motors 11x4.7 props

thanks

Comment by avionics on December 9, 2012 at 9:45am

2012-12-09%2020-01-10.tlog

 

Hi Guys

I was in the middle of tuning for my Loiter and suddenly the quad started coming down out of control and crashed. Luckily no damage but it went out of control. this is the log i appreciate if any one can help and see what went wrong. thanks

 

2012-12-09%2020-01-10.tlog

 

Comment by avionics on December 7, 2012 at 8:16am

OK I got the Loiter going almost good. I had problem with my CH_6 knob on TX. fed the info directly from the ground station. all good for now. Thanks.

 

Comment by avionics on December 6, 2012 at 10:26pm

@Randy

Randy thank you for the response. Frankly I dont really know what to look for in the log. any idea what i should expect in the log? sorry I have never done this before.

Comment by Randy Brazeau on December 6, 2012 at 11:38am

@Avionics

Have you reviewed the logs? That would be a good starting point to see what is happening.

Randy

Comment by avionics on December 6, 2012 at 11:04am
I have a H.A.L quad by hobby king with 1200kv motors and freshly assembled. It flies beautiful in stablise and alt Hold and when i try to loiter it doesnt hold its position. The GPS both LEDs are locked and steady before i start. It drifts and loses altitute very slowly. Tried playing with PIDs but no luck. I ran out of ideas appreciate if anyone can throw some light. Does the WP loiter config PIDs have any effect whilst on loiter or it is only for when on Auto mode? Thanks for the help in advance.
 
 
 

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