About Me:

Biologist, GIS Specialist, Rancher.

Please tell us a bit about your UAV interest

Mapping and agricultural uses mostly, but FPV for remote patrolling and SAR uses are intriguing.


NW Oregon

Activity Feed

Mossbackfarm replied to Tyler Troutt's discussion Finally airborne but still issues
"Not sure what props you have, but it looks like a 6s battery.  Maybe too many volts for the pitch / motors?  Did you check the config on ecalc?"
May 2, 2017
Mossbackfarm replied to Jason's discussion Help diagnosing battery failsafe when flying
"What voltage is your FS set at?  Looks like it drops to 11.5 pretty fast, and then you hit failsafe, then slowly drops from there. You could set it at a lower value, or check a new battery"
Apr 13, 2017
Mossbackfarm replied to dar's discussion Quad Flyaway (v3.4.4)
"A year ago, almost to the day....does this give you any insights?
Mar 6, 2017
Mossbackfarm replied to Grazziani Resende's discussion Roll problem with FBWA mode. in ArduPlane User Group
"Sure thing...has happened to me more than I'd like :) Grazziani Resende said:
Hello, it makes all sense what you wrote. I just got to see it now. Before he turned, he was very slow.

Thank you very much! Mossbackfarm said:
Without a dataflash log,…"
Mar 1, 2017
Mossbackfarm replied to Grazziani Resende's discussion Roll problem with FBWA mode. in ArduPlane User Group
"Without a dataflash log, I can't tell for sure, but when you hit RTL, you had some compass and EKF/POS variance issues.  Nav_roll was maxed at 40, which is proper, but when you rolled over, your speed was pretty low compared to the rest of the…"
Mar 1, 2017
Mossbackfarm replied to Sriram's discussion 450Quad crashed in stabilize mode!!!
"At 3:28:30, yaw starts picking up right after your vibrations start to spike after being good for the previous portions.  Check motor / esc?"
Feb 25, 2017
Mossbackfarm replied to Guilty Spark's discussion Reduce power to motors
"Reducing max speed is via MOT_SPIN_MAX.  You can get some expo in the throttle by tweaking MOT_THST_EXPO.  Not sure what the best values you're looking for, but I'd start there. 
As you mentioned, 3S would help, or perhaps smaller / less aggressive…"
Feb 14, 2017
Mossbackfarm replied to Bernardo's discussion burning wires in COMPASS_MOT calibration !
"Many power modules don't support 6S...is it an attopilot, or (maybe) the HK module?"
Jul 22, 2016
Mossbackfarm replied to Roi Neustadt's discussion Thanks
"Oh, didn't see this.  Might need one of the CW motors to have the ESC power leads reversed to give 2CW and 2 CCW"
Apr 22, 2016
Mossbackfarm replied to Roi Neustadt's discussion Thanks
"Make sure radio is calibrated, and try the motor test in MP to make sure the correct motors are spinning up"
Apr 22, 2016
Mossbackfarm replied to Mossbackfarm's discussion Alt Hold working, Stabilize, not so much
"Update...multiple ESC calibrations, rolled back to AC3.2.1, got less shy about punching the throttle in STAB for liftoff, and....flight!  Lots to do yet, but progress feels good..."
Jan 17, 2016
Mossbackfarm posted a discussion
Hi thereAfter a few years of flying mapping missions with a fixed wing, using APM and Pixhawk, I got the opportunity to get airborne a 700 sized quad that was given to me (but not flyable as is).  I've flown my son's Hubsan X4 a fair bit, but I know…
Jan 7, 2016
Mossbackfarm replied to RG's discussion Anyone used MicaSense RedEdge? in Agricultural UAVs
"I talked to them and held the product at a conference this spring.  It's impressively stout and rugged.  Love to put one through it's paces, but that'll be a while"
Aug 19, 2015
Mossbackfarm replied to Jim's discussion Bix 3 - Virgin Autopilot in ArduPlane User Group
"I guess the start would be tlogs.  I've been APM'ing for 6 months, and autolanding isn't something I'm comfortable with yet."
Nov 11, 2014
Mossbackfarm replied to Flying Buddha's discussion ArduPlane did not follow mission waypoints in ArduPlane User Group
"Yeah, my guess is this, or a bad compass lock that set the home / RTL to the north.  Either way, good HUD flying on the recovery!

*EDIT Looking at the TLOGs, the ber_error is jumping about a bit...not conversant enough in MP to know what that…"
Nov 10, 2014
Mossbackfarm commented on Patrick Egan's blog post Looking For A More Commercial Focus To Your UAS Advocacy Effort?
"Sent.  Good luck!"
Nov 3, 2014