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Trouble with HK telemetry radio and Pixhawk

Started Sep 29, 2014 0 Replies

I've spend two frustrated evenings trying to get a telemetry link working with two HK telemetry radios on Pixhawk. I've used a different set with great success with an APM2.5Telemetry radios are…Continue

Anatomy of a 200km ...crash

Started this discussion. Last reply by moglos Mar 26, 2014. 41 Replies

I've got a Cyclops EPO that I'm setting up with a view to attempting a 200km flight (lovely plane, I'm sure it's capable of it), but I've crashed it twice out of three outings, and I've got no idea…Continue

Tags: A, FBW, crash, km, 200

Flip, Crash on Maiden

Started this discussion. Last reply by moglos Nov 16, 2013. 10 Replies

Hi, I've just maidened my 3DR Y6 into the ground, and I'm not sure why. (This is my first multirotor, I've flown a trad heli and fixed wing up until now.)I got it light on the skids for a moment then…Continue

Airspeed varies by up to 50km/hr

Started this discussion. Last reply by moglos Sep 5, 2013. 1 Reply

Hi, I've just had a flight where my airspeed was way out, it was as much as 15m/s or 50km/hr less than the groundspeed on a very calm day.Can anyone help me work out if it is a leak, a sensor error,…Continue


moglos's Page

Latest Activity

Justin M commented on moglos's blog post Anatomy of a 301 km Flight
"Panasonic NCR18650 batteries from this supplier provides then wrapped in a variety of configurations from this eBay store (Free Shipping too) hunk_lee (Excellent eBay ratings) "
Aug 22
John Smith commented on moglos's blog post Anatomy of a 301 km Flight
"What does a liion 4S7P pack of 23800mah even look like? I've seen many configurations of them but with that many cells, I'm curious to know what it will look like."
Jul 30

Hugues commented on moglos's blog post Anatomy of a 301 km Flight
"I might test the Talon as I built a liion 4S7P pack for my 1h15min quad flight (23800mah). I'll post some results."
Jul 30

moglos commented on moglos's blog post Anatomy of a 301 km Flight
"I'd love to know. I've heard that the Talon is quite versatile. I've looked at it myself, but I don't think it wing is high aspect enough for real high efficiency flight. The cyclops by comparison has 2.6m wing."
Jul 30

Hugues commented on moglos's blog post Anatomy of a 301 km Flight
"Very impressive. How do you think a XUAV Talon frame, with wing extensions (2m wingspan) , same type of 700Kv motor, 12" prop, same battery (LiIon 4S7P) would perform versus this cyclops frame you flew?"
Jul 29

Hein du Plessis commented on moglos's blog post Anatomy of a 100km attempt
"I've read your 301km post yesterday, impressive stuff. Who'd think an electric foamy can stay up that long! Have you thought of solar? There might be gains on your already efficient Cyclops. Math didn't work out for my skywalkers.…"
Jul 29

moglos commented on moglos's blog post Anatomy of a 100km attempt
"Congrats Hein. Yes I thought doing a post explaining the details was part of the requirement too. It is definitely encouraged. I'm working on another endurance attempt of course, with a new bigger plane. But I just can't find the time to…"
Jul 29

Hein du Plessis commented on moglos's blog post Anatomy of a 100km attempt
"Thanks moglos. lol Trung, yea I should. I'm planning on making another blog post, highlighting lessons learned with autolanding, but I don't get much time posting vids and blogs these days. Will make an effort."
Jul 29

Trung Nguyen commented on moglos's blog post Anatomy of a 100km attempt
"Hein, you do so by posting a detailed blog about your plane and flight.  (advice designed to satisfy my own curiosity - wink wink) Sorry Moglos.  So are you working on a transcontinental flight now?"
Jul 29

moglos commented on moglos's blog post Anatomy of a 100km attempt
"Contact Gary Mortimer the admin. http://diydrones.com/profile/Morters "
Jul 29

Hein du Plessis commented on moglos's blog post Anatomy of a 100km attempt
"Sorry for hijacking this post... but where does one claim one's 100km badge :D ?"
Jul 29

moglos commented on moglos's blog post Anatomy of a 301 km Flight
"They were LiIon batteries not LiPo, and they are fine, I'm still using them."
Jul 25
Aeropixel commented on moglos's blog post Anatomy of a 301 km Flight
"Congratulations.In the end, did the LiPos survived or got busted?"
Jul 25

moglos replied to Damo's discussion Finwing penguin takeoff issues in the group ArduPlane User Group
"I use FBWA too it's great. I have a flaps switch in my DX8 radio that you can adjust to add some (about 30%) up elevator (I don't have flaps so I just adjust the elevator part). You can use in-radio-mixing to use any switch for the same…"
Jun 16

moglos commented on moglos's blog post Be careful with LiPos
"The fire is still under investigation, but the investigator believes it was a LiFe battery that started the fire.  http://www.stuff.co.nz/nelson-mail/news/67589147/Batteries-blamed-for-fire-that-destroyed-Stoke-home Another local newspaper…"
Apr 1

moglos replied to Neil Baker's discussion Point and shoot camera with video out?
"I don't know if the S100 is actually better, I'm a lot more comfortable sending the S100 out on longer missions I guess. It's lighter which is an advantage for longer missions, and it's half the price. It does have GPS which can…"
Apr 1

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Moglos's Blog

Be careful with LiPos

Posted on March 30, 2015 at 3:24am 16 Comments

This fire in my home town is suspected to have been started by a LiPo. (Though that hasn't yet been confirmed by the fire investigation authorities.)

"A neighbour, who didn’t want to be named, says Les is a member of the Nelson Model Aero Club."

Thankfully the occupants are both…


Anatomy of a 301 km Flight

Posted on May 1, 2014 at 6:30am 66 Comments

Today I flew my Cyclops EPO for an incredible 7 hours and 8 minutes, covering 301 km (301 km !!!) in one flight.

After flying my…


Anatomy of a 126 km Flight

Posted on January 28, 2014 at 3:30am 50 Comments

Last month I detailed my plans and preparation for an attempt at a 100km flight in a blog here.

Well yesterday the weather was ideal and my preparations (nearly) complete so I went for it and achieved a flight distance of 126km in a time of 2 hr 46 min 40 sec.

I can't attach my log file here because it's too big. It's 15MB and there's a 7MB limit. Any ideas how I…


Whale Rescue

Posted on January 20, 2014 at 4:24am 4 Comments

On the weekend I flew in support of a whale rescue at Farewell Spit in Golden Bay, New Zealand at the invitation of Project Jonah, a whale rescue NGO


About 60 pilot whales had stranded over night high up the beach. About 10 died…


Comment Wall (5 comments)

At 7:39pm on April 23, 2013, Franco Marinelli said…

hi moglos, sorry but I dont have it! 

At 10:45am on July 1, 2013, John Rankin said…

Hi Franco,

I have not been on the site for a while as all of our work is commercial but I do follow what everybody is doing on a regular basis.  Great job everyone you are doing amazing things with the tools that you have.  Although I am the owner of the company I am not the only one in control and the talk in the office is to stop discussing the work we are doing.  There is a lot of competition in this field which we believe is going to expand rapidly in the next few years and we don't want to sell the farm.  To others that have inquired about the software we are using, it is a beta software that is not yet released.  It is not owned by my company; we are simply the beta testers and to my knowledge the only users in North America.  As for the Maja I think I can give you some advice on the airframe.  It is a plane with excellent performance as a UAV platform in most conditions.  It is very stable and flies beautiful straight, flat lines collecting very usable photography. The Maja does have a terrible tendency to stall when banking with a tail wind above 20 kph .  The minimum throttle must be set high to avoid this problem; we keep ours at 50%.  Another problem with the plane is its fragility.  Landing in tall grass or brush can damage the soft foam by cutting into it.  We wish it were made of EPO (Bormatec please listen to us!).  The elevator, rudder, and ailerons are particularly sensitive to the grass shredding them. We have adjusted to this by adding carbon fiber to those surfaces and have since reduced the problem although those surfaces still tend to tear from the frame at the hinge.  Add some Beacon's Foam Tac glue (the best glue we have found on foam planes, bar none) at the hinge and it reduces the issue.  Any hard landing with either the tail or nose first will invariably result in damage.  In our testing we have literally broken three Maja completely in half and one into three pieces.  We have modified the plane by cutting the bottom of the plane in half (with a hot wire) and inserting two carbon fiber rods the full length of the plane on the left and right and then gluing (with Beacon's Foam Tac) the two pieces back together.  Hard landings are no longer an issue and we have not had a problem since, even if we smash into the ground.  The motor mount on the back is also an issue.  We have had the entire motor mount rudder assembly rip off twice while in flight probably due to our high AUW of 3.5 kg.  To fix the mount we cut the mount in half and insert two carbon fiber rods on the left and right, glue it back together and then mount the motor plate with two large nylon bolts directly into the carbon fiber rods.  For extra security we then use 1/2" Velcro straps to hold the entire rudder assembly to the body.  Those white plastic pins often break and are not sturdy enough for our uses.  As for the settings we started with the Conservation Drone's


settings and then did a few modifications as needed.  If you are going to fly with a high AUW ensure that you have a powerful enough motor, esc, prop combo and complete all the re-enforcements of the body or you will be in trouble.  The plane ALWAYS dips precariously close to the ground on launch so you will need a very high launch area.  We hand launch from a pad on top of our field truck and skim the ground on every take off.  I hope this information helps anyone out there and if you have any other questions please feel free to ask. 


At 12:46pm on January 5, 2014, Vince Lang said…

Dear Moglos, 

I've just read Your 100km attempt. I was impressed by the research You did on motor prop confogs. My Maja is on the way from Germany, but I have not yet ordered any electric parts. Im not willing to attempt anything like You, just want to set up a system for FPV maybe later add a PS camera on the plane. Could You give me a good starting point for motor/prop setup: I would appreciate any help.



At 12:15am on January 6, 2014, Vince Lang said…

Hi Moglos,

thanks for the fast reply, I was thinking about that motor too, good to know I wasn't that off with my concept. Im sending some good weather from Europe for your attempt, keep us posted :) Good luck! 

At 3:51pm on July 16, 2014, Al Creigh said…

Hey moglos my email is al.creigh@yahoo.com could you send me your config file for your cyclops?

Also I was wondering if you knew anything about the cyclops C?

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