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For Sale: Like new Canon SX260

Started Apr 19, 2016 0 Replies

Bought an SX260 a while ago for mapping, but never ended up using it beyond a couple quick test flights.  Like new condition. Complete with box, etc.  These are sought after because of CHDK and NDVI…Continue

AC3.4 Discussion

Started this discussion. Last reply by David Boulanger Apr 28, 2016. 6 Replies

Hello,I just wanted to start a post discussing AC3.4.  People should be aware that I'm not reviewing the code in Master or doing test flights at this time.  Recently, a large set of changes went into…Continue

Notification: My Community Support Ending

Started this discussion. Last reply by Mark Lewus Feb 14, 2016. 89 Replies

Hello everyone, I feel the time has come to make an announcement, which I've been avoiding for a few weeks now, but which I can't put off anymore.As some people are aware (and some maybe not) for a…Continue

AC3.3 Vibration Logging Discussion Thread

Started this discussion. Last reply by Forrest Frantz May 20, 2016. 58 Replies

Start this thread to have a place for focused discussion of the new vibration logging function of AC3.3.  I'll start by copy-pasting my initial discussion from the AC3.3 beta testing thread.Continue


Rob_Lefebvre's Page

Latest Activity

Waki Yok replied to Rob_Lefebvre's discussion All Aluminum Welded MultiRotor Frame. Use Frame As Ground?
"I was learning GMA Aluminium Welding, certainly as many others around here, without having "Pulsed Mode(s)" available. Mentioned by the way and not to forget - it was a BOC Murex. Due to the heavy wall thickness parts we were required…"
Jan 12
Waki Yok replied to Rob_Lefebvre's discussion All Aluminum Welded MultiRotor Frame. Use Frame As Ground?
"I was learning GMA Aluminium Welding, certainly as many others around here, without having "Pulsed Mode(s)" available. Mentioned by the way and not to forget - it was a BOC Murex. Due to the heavy wall thickness parts we were required…"
Jan 11

Profile Information

About Me:
Mechanical Engineer
Arducopter TradHeli Lead Developer
Please tell us a bit about your UAV interest
Aerial Photography
Light Industrial Applications
Traditional Helicopters
Brighton Ontario Canada

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Rob_Lefebvre's Blog

NASA Chooses Helicopter For MARS Drone

Posted on September 2, 2016 at 10:53am 9 Comments

(Originally posted on NOVAerial Robotics Blog)

NASA is now planning on using a UAV in addition to the Rover in order to explore Mars.  The reasons are very simple, and parallel the desire to use UAV’s on earth.  Having a camera in the air, instead of being stuck on the ground, allows for better…


Announcing Formation of Autonomous Systems Cooperative

Posted on April 7, 2016 at 2:00pm 20 Comments

Today I am pleased to announce the formation of a new commercial support company which I have founded in combination with Bill Bonney (creator of MAVPilot and maintainer of…


Long-Line Sensor Payload Demonstration

Posted on March 19, 2016 at 6:00pm 10 Comments

Today I did something a little bit unusual, and definitely more difficult than flying around with a camera. A possible commercial customer asked to see a demonstration of a helicopter flying with a 2.5kg sensor.  This sort of thing is commonly done for magnetometer surveys for mining exploration.  The sensitive sensor must be hung from a long line in order…


Canberra UAV Demonstrates Helicopter Flight with Downstream FBL Controller

Posted on March 10, 2016 at 2:30pm 47 Comments

I wanted to bring attention to the work that Tridge and the rest of the CUAV team have done to demonstrate the possibility of flying a Helicopter with a standard FBL controller handling the rate control duties.  They have been testing gas powered helicopter for next round of the Outback Challenge which will require a long-range VTOL aircraft.  Helicopters are a…


Comment Wall (17 comments)

At 5:59pm on November 30, 2011,
Jason Short

Chris is the Admin. He can help you.


At 8:22pm on May 16, 2012, Carl La France said…

Robert thanks for your input the 1/8 aluminum on  on the fuselage will be a milled out channel running  half way down the side of the plane    to attach the wing the horizontal stabilizer and the vertical fin to a Exoskeleton about 1 1/2 pounds the rest of the plane is foam and fiber glass there was no distortion welding we had it clamped down  pretty good Thanks again Carl

At 6:17pm on November 27, 2012,

Hi Robert, sorry I missed your request. still getting used. to this system.

Sorry, not waterslides,,,, Kiddie trains from Granby.

At 7:53pm on January 24, 2013, Joshua Johnson said…

My bad I was just trying to give new members someone they can ask questions to because the site is super confusing at first for a while when your new. Ill stop doing it!

At 11:47pm on April 23, 2013, Manuel Zangenfeind said…

Dear Mr. Lefebvre,

I saw some videos from your heli in Loiter Mode and thought wow this heli is standing rigid in the air.

I'm using a TREX 700E and want to fly this heli with apm 2.5 version 2.91 autonomously.

Currently I want to adjust the PID parameter. The stabilize and the Altitude Hold Mode is working perfect, but I have some problems with the Loiter values.

So would it be possible to send me your PID values of the loiter mode? I think they have to be very similar.


Nice Greets from Austria


At 2:56pm on July 8, 2013, Jonathan Weisburst said…

Hi Mr. Lefebvre, 

Thanks for getting back to me.  Do you have any suggestions in terms of renting or hiring aerial videography crews or drones?  

All the Best, 

At 11:06pm on June 3, 2014, Matt said…

Hi Rob,

Interested in making a Tandem out of 2x 800 sized helicopter. Just interested to discuss your thoughts.

At 7:34pm on July 12, 2014, Eric said…

Hi Rob, I saw your DroneCon talk on youtube (which was great, thanks!), and it looks like you got cut off towards the end there. By any chance is the full slide deck available somewhere? Or was there much more left? Thanks!

At 3:02am on August 1, 2014, Artem said…
Hi Rob, i know you had a lot to do with AC yaw control, could you confirm if motor values are used in the formula for the yaw servo control? In other words if running a motor in a wrong direction would affect the yaw control. If so is this something that appeared in the code since 3.1.3 or was it there before? Thank you!
At 4:54pm on January 9, 2015, Rowan Watkins said…

Hi Rob, thanks for connecting with me.

I am currently working on a Trex 700E project with PixHawk as the controller. I have it flying well in Stabilise with the conventional shaft drive tail, but am keen to incorporate a DDVP Tail Rotor as you have done, and wondering if you have any pictures or info you could share that will point me in the right direction in setting it up.

I apologise in advance if there is a post on DIY Drones about setting this up, but I am aware that there are only a small number of people using this method.


Rowan Watkins

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