John Cousins
  • Male
  • Perth, Western Australia
  • Australia
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John Cousins's Groups

John Cousins's Discussions

Mugin UAV 3m

Started this discussion. Last reply by Bruce Robb 11 hours ago. 39 Replies

              I have decided it's time to move up to a large UAV airframe.I still have the giant payload master in the build, but it is taking forever as if i'm not working offshore, i'm busy test…Continue

Current Australian UAV regulations.

Started this discussion. Last reply by John Cousins May 13, 2012. 2 Replies

Hey there all. I've been busying myself with test flying foamies and getting all my Ardubugs ironed out.I haven't checked in on the CASA regulations for ages...Finally I feel i'm ready to step up to…Continue

Telemetry Port

Started this discussion. Last reply by Søren Kuula Aug 31, 2013. 8 Replies

Hi all!This isn't a discussion about wireless telemetry but more to do with the telemetry port itself.Could somewone tell me what the signal voltage levels are on the tlemetry port on the Ardupilot…Continue

Telemetry port (Port3) ?

Started this discussion. Last reply by John Cousins Mar 23, 2011. 4 Replies

Hi there all. First of all, to give you a little run-down on my situation... I work on an oil rig and I have been playing around building and testing my APMega after hours. I haven't been able to…Continue

 

John Cousins's Page

Latest Activity

Bruce Robb replied to John Cousins's discussion Mugin UAV 3m
"No video I can release and we used a BEC to power the servos (via the pixhawk servo rail) and the ignition."
11 hours ago
Ryan replied to John Cousins's discussion Mugin UAV 3m
"I bought it at FPVmodel.com"
yesterday
iskess replied to John Cousins's discussion Mugin UAV 3m
"Interesting, split flaps. Mostly added drag, not sure if you will see a significant stall speed reduction. Here is a review of version III from 2013, and there are no flaps. Where did you buy yours?"
yesterday
Ryan replied to John Cousins's discussion Mugin UAV 3m
"I don't have a link but i think its the new version 3 but i took a pic for you to see."
yesterday
iskess replied to John Cousins's discussion Mugin UAV 3m
"Could you provide a link to a 3m with flaps?"
yesterday
Ryan replied to John Cousins's discussion Mugin UAV 3m
"Well I'm running the same engine but my Mugin has flaps. Also what kind of flight time you anticipate. do you have any build photos to share? Its nice to talk to a fellow owner of this aircraft i think it is a very good platform. Do you have…"
yesterday
Bruce Robb replied to John Cousins's discussion Mugin UAV 3m
"Ok, The 3m does not have flap, approach speed is around 20m/s (metric), cruise is 25m/s, landing speed is around 17-18m/s and stall is 16m/s. We run a DLE60 with a 22*10 prop which we find to work better than the 23*9 supplied. KBO!"
yesterday
Ryan replied to John Cousins's discussion Mugin UAV 3m
"May i ask if your Mugin has flaps i'm almost finished setting up mine and would like to know what the approach and cruise airspeed values your getting. Also what engine are you using?"
yesterday
Bruce Robb replied to John Cousins's discussion Mugin UAV 3m
"Slowly, We have done the first autotune but are now victims of the weather. There is a thunderstorm outside even as I type. Plus, as they say, Winter is Coming. Overall though, it flies nice and very nice in stabilize. We are going to replace the…"
yesterday
Ryan replied to John Cousins's discussion Mugin UAV 3m
" Hi Bruce how is your mugin coming along? "
yesterday
Bruce Robb replied to John Cousins's discussion Mugin UAV 3m
"Does anyone have a good "working" config file for the 3m Mugin?"
Jun 10
nesrine left a comment for John Cousins
"hello does anyone have the plan of Pusher Prop UAVs "
Apr 25
John Cousins commented on Stephen Gloor's blog post PerthUAV at the 2014 UAV Outback Challenge
"Top work lads... We never thought we'd be relying on cloud recognition but it worked brilliantly, if a little slower than we'd have liked. In a real world situation the rescue teams would have been on their way to Joe within 15 minutes of…"
Sep 24, 2014
Joshua replied to John Cousins's discussion Mugin UAV 3m
"My reply got mangled for some reason, but here's a v2 of it:My understanding is:MTOW (25kg) is comprised of: Load weight (payload) = 8kg Fuel = 5kg Airframe = 10kg Engine = 2kg (All approximated of course)I base this on the fact that my…"
Jul 20, 2014
iskess replied to John Cousins's discussion Mugin UAV 3m
"Thanks for the quick response Joshua. I see different figures on different sites, it's pretty confusing. What do you figure the useful load to be? I've seen it written that that "Flying Weight" is 25kg, that must be the MTOW. I…"
Jul 20, 2014
Joshua replied to John Cousins's discussion Mugin UAV 3m
"Depends how you do it:Near the CG, there is space for about 6L if you were using 1 or 2 tanks. However, I think if you were using a custom tank, or multiple smaller tanks, you could probably get at least 8 litres in there.You could also put more…"
Jul 20, 2014

Profile Information

About Me:
Currently an ROV Pilot / Submersible engineer, previously an Aircraft Maintenance Engineer (Pilatus PC-9)
Interests are UAVs(of course), telemetry, High performance automotive technology, turbo and super-charging. Engine Management Sytems.
Please tell us a bit about your UAV interest
I get paid to fly ROVs.... so why not fly UAVs s well?
Hometown:
Perth, Western Australia

Comment Wall (2 comments)

At 6:13pm on July 12, 2012, Wanabigaplane said…

Hi John,

I see you are into flying a Mugin.

I am in a group preparing for the Outback Challenge. See  CanberraUAV.com  We were donated a Mugin by Cyber Technology in Perth. I think they obtained the plane before it was marketed as it is now, because they put a single cylinder DA50 on it.

It is a great aircraft for this purpose. It goes like the clappers and handles the weather really well.

The engine was purchased by Cyber Technology with the timing altered so that it runs in reverse. This means the full range of commercially available propellers can be used.

Vibration is a problem. A main wheel fell of on the first flight. The ailerons and elevons are held on by a 3mm aluminium shaft through a groove in the balsa of the flying surfaces, and either the hard balsa ribs or fibreglass sheet projections from the wing. With the vibration, after 4 a few hours airtime, the holes have doubled in size and the fibrglass has worn through. We are grounded at the moment while I do alot of surgery in order to rebuild the bearings and install brass sleeving on the shaft at every joint.

To balance the aircraft we had to put 4Kg of lead acid battery in the nose. This makes the aircraft heavy, so it flies fast and lands fast. Our nosewheel arrangement is just not up to it. After rebuilding the forward bulkhead we now attach the nosewheel shaft with nylon bolts.With the long nosewheel leg we break the bolts just about everytime it overruns the runway into the grass. Many of the aluminium parts on the nosewheel have been rebuilt at some stage.

We have just recently ordered through the supplier a number of replacement parts, especially the aluminium wingspar and booms because the material is, not to our knowledge, commercially available in Australia.

I'd love to hear how you get on.

Jack.

At 5:44am on April 25, 2015, nesrine said…

hello

does anyone have the plan of Pusher Prop UAVs 

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