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Rob_Lefebvre's Discussions

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

Rob_Lefebvre commented on's blog post Sky Drone FPV 2 - Long Range 1080p FPV Video + Command & Control - now available for USD 299.-
"Darn, I was interested, until LTE.  Would be unuseable over about 97% of Canada's land mass.  If you ever get a full direct digital link, I'm interested."
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - PX4
"I can predict what will happen, if they run Ardupilot with a very simple un-optimized mission.  It will cut the corners very badly.  They need to put a 1 second pause at each waypoint."
Apr 15
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - PX4
"By itself, not really relevant.  There are many many factors which go into this."
Apr 14
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - PX4
"This is actually a pretty good result for PX4, I have to say, I'm surprised.We should discuss the settings to be used on Ardupilot for best results.Set it to have a 1 second stop at every waypoint, and it should have virtually no…"
Apr 14
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - DJI A2
"Never did get my prize Solo RevB GPS.  Had to buy an mRo. Probably for the better anyway.  ;)"
Apr 12
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - DJI A2
"To be clear... you have loaded PX4-Stack onto an Iris?  Iris by default comes with Ardupilot firmware.If you did load PX4 onto it, you must be intentionally keeping us on the edge of our seats waiting for the Ardupilot test.Here are typical…"
Apr 12
Rob_Lefebvre commented on Hein du Plessis's blog post VTOL by Arkbird
"Hein, on what basis do you claim it's "efficient"?  Do you have any performance numbers?"
Mar 31
Rob_Lefebvre commented on HELIPSE's blog post New UAV helidrone from Helipse the HE 220 E
"Yeah, it would be nice to see the code to see what you've been working on and maybe contribute it back. H4 has been talked about for a while, but never made it into the code yet.  I never had anything to test it with, so never put…"
Mar 28
Rob_Lefebvre commented on HELIPSE's blog post New UAV helidrone from Helipse the HE 220 E
"Interesting looking helicopter.  What are the details on the "customised Ardupilot firmware"?  I'm curious what changes you made?"
Mar 27
Rob_Lefebvre commented on Jose Luis Cortes's blog post Quaternium HYBRiX at XPONENTIAL 2017
"Hi Jose, I'm hoping I can make it there too. What sort of flying speed are you doing in the video there?"
Mar 26
Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - DJI Naza-M V2
"Wow, that's really pretty bad. I know how Ardupilot will fly, if it's set up properly."
Mar 26
Rob_Lefebvre commented on Jerry Giant's blog post After 3 years of not making money on drones, I quit
"I disagree that sUAV technology is on a plateau. I believe we are well on Slope of Enlightenment.At least, some of us are.You are right to some extent, some of the market is stuck down in the Trough of Disillusionment. Small electric quadcopters are…"
Mar 14
Rob_Lefebvre commented on Kristaps Brass's blog post Universal Adapter for DJI Gimbals
"Alexey, DJI might want to sue to stop you producing that.  Reason is, DJI is killing it the UAV industry, in large part, because of their excellent camera systems.Ardupilot is easily a match for DJI's flight controls.  Far superior in…"
Mar 8
Rob_Lefebvre commented on Chris Anderson's blog post Analyzing Parrot's latest financial report
"Have to disagree Gary.  I love my Ultimaker 2.  Incredibly, I now have over 2500 hours of fairly trouble-free printing on it.  Just wear items.  And I'm producing parts that I could not to any other way.  The entire…"
Mar 3
Rob_Lefebvre commented on elad orbach's blog post A real flying submarine drone
"Interesting concept.  Can you show some rough calculations of the predicted mass of the thing and power requirements for flight?"
Feb 14
Rob_Lefebvre commented on Andreas Antener's blog post Full PX4 Support for E-flite Convergence
"That's true John.  Going from toys to larger aircraft is where the importance of a fully developed control system instead of simple PID loops become important."
Feb 14

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

Procyon 800E Enters Limited Production

Posted on December 16, 2016 at 12:00pm 19 Comments

NOVAerial Robotics is pleased to announce that the Procyon 800E drone helicopter has finished it’s prototype and testing phases and is beginning limited production and delivery to commercial companies worldwide.

The first customer to place…


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…


Procyon 800E Phase 2 Beta Testing Begins

Posted on July 21, 2016 at 5:59pm 42 Comments

( Blog Reposted From Here )

NOVAerial Robotics is pleased to announce that Phase-2 beta testing of the revolutionary…


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 4:26am on July 26, 2012, OG said…

Thanks for you assistance with my ecommerce sight yesterday . I appreciate it so much I give you my cost your first porches.

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!

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