Rob_Lefebvre
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Rob_Lefebvre's Discussions

For Sale: Like new Canon SX260

Started Apr 19 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. 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. 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. 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 Joseph Aletky's blog post Local Motors/Airbus VTOL UAV takes to the skies!
"The one I have been helping with is 4m wingspan, but with a big gas motor, in a suitable location.  No problem with forward flight."
Monday
Rob_Lefebvre commented on Joseph Aletky's blog post Local Motors/Airbus VTOL UAV takes to the skies!
"Gary, I don't even think it was solid enough to be a paper design.  Purely virtual rendering. ;)"
Sunday
Rob_Lefebvre commented on Joseph Aletky's blog post Local Motors/Airbus VTOL UAV takes to the skies!
"Congrats Joe. The aircraft looks much better for sure. Glad to see Ardupilot working as I knew it would, as I've also done some consulting on a very large quad plane like this. It takes sophisticated control algorithm to fly an aircraft like…"
Sunday
Rob_Lefebvre commented on Chris Anderson's blog post New 3DR autopilot: Pixhawk Mini
"Yes, it's definitely possible.  "
Nov 30
Rob_Lefebvre commented on Chris Anderson's blog post New 3DR autopilot: Pixhawk Mini
"Yes Hein, this really isn't a surprise at all.  Certainly we've seen this problem before with people placing the beeper too close to the flight controller.  I have no idea why somebody would put the beeper directly on the board.…"
Nov 30
Rob_Lefebvre commented on Chris Anderson's blog post New 3DR autopilot: Pixhawk Mini
"WOW. Well, thanks for looking out for our users Tridge.There's actually a good opportunity for a cost save here.  Just remove the buzzer since it can't be used."
Nov 29
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"I believe it was Ferdinand Porsche who stated "A piston engine is a convenient hot gas generator for a turbine engine"It's this sort of thinking that leads to the insane performance produced from modern racing engines.  They are…"
Nov 25
Rob_Lefebvre commented on Dmitriy Ershov's blog post Fleetlights - open source guardian drones service
"Another successful application of Ardupilot.  Not possible to do this with other autopilot software.  Much of the flight they do is very dynamic which is where other systems fall apart when not hovering in a lab.Just too bad, no credit…"
Nov 23
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"It's certainly possible to use a 4 stroke engine at this scale.  Honda make a nice little engine, 35cc GX35.  Proper crankcase oil system, doesn't need to burn oil.  The problem is, it only makes 1 hp, compared to 2-2.5hp…"
Nov 23
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Hugues, please point to a single scientific study about the danger of *any* drone system.  Just one.  Even a theoretical energy study.  Thanks."
Nov 22
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Yes.  But, the engineering to do this is nothing compared to the work required get people to open their minds and accept that batteries will not provide extended flight duration anytime soon.  And hydrogen fuel cells are expensive,…"
Nov 22
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Hugues, until somebody does some real testing, such as crashing a large multirotor into a pig carcass and comparing the damage to a helicopter, we cannot talk about intrinsic danger.  Your position is clear also, it is based on fear and…"
Nov 22
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Hugues, as I said, reckless flying.  Roman hit himself in the head flying hurricanes at himself.  Watch this video, and tell me why these incidents should be used to judge safe UAV usage?  (it is NOT the Roman incident). This is like…"
Nov 21
Rob_Lefebvre commented on Chris Anderson's blog post Simulation of a drone/airplane collision
"Gary: Hint.  You can fly the Phantom remotely at the engine. ;)I believe this "news" is about 6-12 months old.  I know I saw it some time ago.I suspect the reason why we are not seeing results from these tests, is because nothing…"
Nov 21
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Yeah, here we go again. Hugues, can you point to a case of a UAV helicopter which has killed somebody?  You cannot include sport helicopters flown recklessly.  These pilots intentionally risk their own lives for the thrill of it. There…"
Nov 21
Rob_Lefebvre commented on Jose Luis Cortes's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Yeah, I don't mean to take away from this development.  What these guys are doing is certainly very interesting, and they're doing a good job.  I agree that, if you must use a multirotor, and want long flight times, a gas-hybrid…"
Nov 21

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
Hometown:
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…

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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…

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Procyon Helicopter Demonstrates 1 Hour Flight with 1KG Payload

Posted on April 19, 2016 at 8:00pm 17 Comments

Autonomous Systems Cooperative is pleased to present a new helicopter design which has been engineered from the ground up for UAV usage. Today, on just its 3rd test flight, the Procyon 800 Electric helicopter design demonstrated capability of…

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Comment Wall (17 comments)

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

Chris is the Admin. He can help you.

Jason

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,
Moderator
Dwgsparky
said…

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.

Thanks.

Nice Greets from Austria

Manuel

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, 
Jon

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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