Stmpngrnd
  • Salt Lake City, UT
  • United States
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Stmpngrnd replied to Kaan Ozgen's discussion Quadcopter with 1 hour flight time
"just for everyone who missed this on their website https://turncircles.com/Technologies#motor-technology and some interesting info regarding Halbach Array motors http://www.launchpnt.com/portfolio/transportation/electric-vehicle-propulsion"
Oct 22, 2016
Stmpngrnd replied to Kaan Ozgen's discussion Quadcopter with 1 hour flight time
"From everyone's frame of experience with currently available motor and battery tech..claims of 1 hour durations will always come across as fairy tales.  Now the fact that this company is developing Halbach Array motors ...that is an…"
Oct 22, 2016
Stmpngrnd commented on Chris Anderson's blog post Airbus Cargo Drone using Dronecode/PX4 stack
"maybe they should reverse engineer this..seems to be pretty flight worthy!!!"
Oct 22, 2016
Stmpngrnd commented on Emlid's blog post 4th of July sale on Navio2 autopilot and Reach RTK kit
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd replied to Darrel Maddy's discussion Help with 3DR radios in MP
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Emlid's blog post Reach: affordable centimeter-level precise RTK GPS on Indiegogo
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Emlid's blog post Reach RTK Pixhawk integration released!
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd replied to Andrew K's discussion Swift Nav Piksi and EMLID Reach RTK and 3DR Solo
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Bertrand Duchiron's blog post Reach - High accuracy L1 RTK GNSS
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Chris Anderson's blog post RTK GPS with ArduCopter 3.4
"Selling an extra Emlid Reach RTK Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Chris Anderson's blog post Reach RTK GPS can now embed ground control points in imagery
"Selling an extra Emlid Reach Kit if anyone is interested.  Only used for bench testing and setup...never flown! http://www.rcgroups.com/forums/showthread.php?t=2750520"
Oct 2, 2016
Stmpngrnd commented on Rob_Lefebvre's blog post Procyon 800E Powertrain and Control Systems Revealed
"Great topic direction this thread has taken, nice to see servo reliablity testing. Bty, just realized in my earlier post I failed to mention I was talking about direct drive mains while the link was about tails....just to clarify."
Aug 31, 2016
Stmpngrnd commented on Rob_Lefebvre's blog post Procyon 800E Powertrain and Control Systems Revealed
"When limited by commercially available motors achieving a direct drive is a challenge. I investigated making a hallbach array motor a while back but cash flow got in the way :-( There is a company developing a direct drive tail rotor for full scale…"
Aug 29, 2016
Stmpngrnd commented on Zubax Robotics's blog post PX4 Sapog - advanced open source ESC from the PX4 team
"There really are not many professional duration or heavy lift platforms that run 4s 20a. For reference KDE is one of the few pro grade power system vendors and they only have  about 3 motors that run under 20a and they are for 1.5kg or smaller…"
Aug 20, 2016
Stmpngrnd commented on Enterprise Drone Solutions's blog post Enterprise Drone Solutions announces Théa: the world’s first UAS to meet the high standards for an ​FAA Airworthiness Certificate
"Just another hobby grade mash up.  Tmotors and props...probably their esc as well.  And should probably read up more on part 107 before making such bold operational claims. But everyone is jumping on the bandwagon because there's a…"
Jul 29, 2016
Stmpngrnd replied to Andy Gongora's discussion Quad vs Hexa vs Octo -copter. (Radial and coaxial) Advantages-Disadvantages?
"If you do more than hover around then Y's have a distinct disadvantage because of dis-symmetry of lift. "
Jul 29, 2016

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Please tell us a bit about your UAV interest
AP
Hometown:
Salt Lake City, UT

Stmpngrnd's Blog

Heavy lift power system

Posted on February 2, 2017 at 1:30pm 0 Comments

A couple are brand new out of box and a couple have only test hovered. They were destined to be used in a heavy lift Y6 project from couple of years back and these have just been sitting in a box waiting for a purpose.  Project failed due to balance and battery placement issues and nothing to do with the performance of the power system. Just included pictures of the original test bed but it is NOT included for sale as it is long gone itself.

All in immaculate…

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