Thomas J Coyle III
  • Male
  • Ft. Lauderdale FL
  • United States
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Thomas J Coyle III's Groups

Thomas J Coyle III's Discussions

Fresh install issue with MP 1.2.99

Started this discussion. Last reply by Thomas J Coyle III Mar 29. 4 Replies

SRV-II Submarine Kit

Started this discussion. Last reply by Thomas J Coyle III Feb 20. 7 Replies



Thomas J Coyle III's Page

Latest Activity

Thomas J Coyle III replied to Jamie Glover's discussion Ardu Rover drive motor not working. Brownout results from commands. in the group ArduRover User Group
"@Jamie, I suspect that the modified motor is pulling the battery voltage down below the level that the PM will operate at causing the APM to brown out. I have seen a similar issue with the Pixhawk on my Slash Rover even when using a 5000mahr 7 cell…"
3 hours ago

Thomas J Coyle III replied to F. C. Bearsch "Tearig"'s discussion AVC or active vehical control on rover in the group ArduRover User Group
"@Tearig, I suggest that you build a prototype and compare its performance against one of my autonomous Traxxas 4WD Slash rovers that incorporates active braking and lateral acceleration control as pointed out by MikeRover. The Steering Mode is…"
14 hours ago

Thomas J Coyle III commented on Thomas J Coyle III's group ArduBoat User Group
"Hi All, I have updated my Pontoon RSV Discussion Project. I have successfully captured, recorded, and transmitted GPS and Depth Finder NMEA 0183 sentences while the wife manually moved the RSV around in my Association's swimming…"

Thomas J Coyle III replied to Thomas J Coyle III's discussion Pontoon Remote Survey Vehicle (RSV) in the group ArduBoat User Group
"Hi All, I had planned to test the GPS/Depth Finder data logging capabilities of the GPS/Data Logger Shield on Monday, but did not make it to the Association swimming pool until today. Though I did spend Monday adjusting the Depth Finder Transducer…"
David Boulanger replied to Thomas J Coyle III's discussion Pontoon Remote Survey Vehicle (RSV) in the group ArduBoat User Group
"Tom, That should work.  Water resistant ventilation and I can't imagine any problems having it designed like that. Regards, David R. Boulanger"

Thomas J Coyle III commented on X-Winder's blog post Eight industries that want to fly drones
"@Scott, Only the eight business listed above are mentioned in the article. Regards, TCIII Admin"

Thomas J Coyle III commented on wayne garris's group Techpod Users
"Hi All, As far as the HS 65 servos go, is it better to use the metal gear (MG) model in place of the Karbonite gear (HB) model? Regards, TCIII AVD"

Thomas J Coyle III commented on wayne garris's group Techpod Users
"Hi All, I am new to the Techpod User Group, but not to DIY Drones. After having flown a couple of custom modified EX*s and TwinStar IIs, I have been thinking about building a Techpod. Therefore I am interested if anyone has integrated a Pixhawk into…"

Profile Information

About Me:
Retired Systems Engineer who has robotics as one of his hobbies.
Presently have 4 and 6 wheel rovers and other assorted robots.
Please tell us a bit about your UAV interest
I presently have four EZ*s, two Twinstar IIs, a Maja, and three quadrarotors of various sizes. I have two of the EZ*s equipped with ArduPilots and one of the Twinstar IIs equipped with an APM/IMU Mega. I have an APM/IMU Mega on one of my quadrarotors. The Maja is equipped with a APM/IMU. Needless to say, I am definitely into UAVs.
Los Angeles CA

Thomas J Coyle III's Blog

DIY Drones at 59,000 members!

Posted on October 22, 2014 at 4:00pm 4 Comments

3D-printed UAV now sports ducted fan motors

Posted on October 15, 2014 at 3:41pm 4 Comments

It may look like a flying manta ray, but this is actually the University of Sheffield's latest UAV


October 14, 2014

Back in…


Serbia and Albania game abandoned after drone invasion sparks brawl

Posted on October 14, 2014 at 5:54pm 12 Comments

(CNN) -- Ethnic tensions in the Balkans and an incident involving a drone led to the abandonment of a major European international football game Tuesday.

Serbia's European Championship qualifying match with Albania…


Snakebot and quadcopter combo makes for a go-anywhere rescue drone

Posted on September 28, 2014 at 3:34pm 2 Comments

 By Mariella Moon

Everyone has different ideas on what the perfect…


Comment Wall (35 comments)

At 10:15am on December 24, 2009, CDRJulie said…
Mr. Coyle,
My comment was not to diss the Army. I spent the most interesting year of my Naval career as an intelligence lead with them. Didn't mean to offend you or any other Army folks. I would have done another tour there had there been the chance.

Happy holidays to you.
At 12:54pm on December 24, 2009, CDRJulie said…
Mr. Coyle,
It looks like you and I have a lot in common. I too am a systems engineer, 25+ years working in companies that supported I work at a small company that supports NASA.
I stumbled upon DIY Drones without spending a great deal of time investigating the 'Dos and Don'ts' of what the site is all about. Is this a hobbyist forum for folks who are or were RC builder/flyers or is this site focusing on trying to develop the UAV industry in areas that the General Atomics, Boeing's and DRS's of the world don't compete in?

I have been a UAV fanatic for almost 2 decades now. I worked "trying" to integrate the early Predator [back when it was still an ACTD] into the Navy with no luck and was very fortunate while in Iraq to be able to have 'control' of most of the Preds in country. I came back hoping to start a UAV company that provided full up ops to a customer - vehicle(s), control stations, operators, etc. to find that it was impossible to get bankers to understand what I wanted to do in order to get funding. I gave up and bought a kit car company instead. Now, I find DIY-D and have my interests rekindled.

I find your comments in re: ESD to be on the mark. Way back when, when Bombardier was working on what everyone called 'the Peanut', they had all sorts of issues with control. Turns out that they had ESD gremlins. Once figured out, their system worked quite well. I hope folks heed your warning.
At 8:42pm on December 28, 2009,
3D Robotics
Jordi Muñoz
Not yet, is full of dust, i will use it for ardupilot mega, so it will remain in the shadows until then... ;-)
At 8:42pm on December 28, 2009, Andy Geppert said…
Howdy Thomas. I have have done a bit more troubleshooting and narrowed it down to the transmitter board. There are clearly three black vertcal bands through the video. The easiest way to see them is to connect the camera ground wire, but not the signal wire. I have found that I need a good video display on the receiver that can lock on to the signal to see the bands. If I don't get a good lock, then it looks a bit like static (but it's not - it's a noticeable pattern). I need to take the transmitter apart and review the construction very carefully. One of the fellows at DPCAV has been helpful in guiding my troubleshooting. So, I still need to make progress on that front. Right now I've diverted to a CNC mill retrofit project since I've got a chunk of time off to try and get that running. I will certainly get back to the video transmitter though, I'm just shuffling priorities since winter has set in. And I'll be curious to hear how yours works.

At 3:45am on January 30, 2010, Bart said…
Well Tom, at first i was a bit dissapointed to read that you don't own the avatar-plane, but finding out more about the MAJA, my dissapointment changed to a very happy state. This kind of plane is exactly the sort of plane i was looking for. I want to start a payed hobby in aerial photography. Vertical photo's for GIS. I will first buy a easystar to get familiar with real flying (instead of game-based) and then upgrade to a more full-load plane, like the MAJA. Do you know if it flies similar to the easystar?
Grtz Bart
At 8:38am on January 30, 2010,
Thomas J Coyle III

The Maja is definitely not for beginners so it is wise that you start with the EZ* like I did. The Maja is capable of heavy lifting with the right motor and battery selection and can stay in the air close to an hour at ~25% throttle. You might also want to consider the Multiplex Twin Star II which is a twin engine model capable of heavy lifting too.
Check these websites and build logs out:

At 4:27pm on February 16, 2010, Roy Brewer said…
Yes, I post on Aeroquad forum and RCGroups as RoyLB

- Roy
At 8:12pm on August 31, 2010,
Thanks, did you read my question regarding the Borjet Maja? I'm interested in the airframe and I believe you commented on it somewhere along with using the landing gear that they sell. Any pictures or info you could share?


Adam A.
At 3:04pm on April 9, 2012, Richard said…
Hi Thomas, noticed on another thread that you requested the PID values for the ursus that you were building, did you eve get them? Ankther uk based member is sending me his ursus pid settings and wondered if I could compare them with yours?

How did you get on with tho aircraft,
About half way through my build,

Waiting for my APM 2 to arrive!
At 4:04pm on July 30, 2012, Stuart Hungerford said…

Thanks Thomas!


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