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moglos's Groups

moglos's Discussions

Send analog data over telemetry

Started Apr 9 0 Replies

I've got a question about sending analog data back to the GCS through the APM telemetry feed.What I want to do is have a microphone to pick up the shutter beep on my point and shoot camera just to…Continue

Anatomy of a 200km ...crash

Started this discussion. Last reply by moglos Mar 26. 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

moglos replied to Serge B's discussion Your advice for mapping plane
"Does the Talon (EPO) have room for a straight downward facing camera mounted in landscape orientation, not portrait. Something like a Canon S100 (about 10cm wide)"
8 hours ago
Hans Miller commented on moglos's blog post Anatomy of a 126 km Flight
"Nothing strange about that. All aircraft have a CG range in which the will fly. In some, such as flying wings, it is rather narrow, in others it can be quite broad. "
Aug 15
Elios commented on moglos's blog post Anatomy of a 126 km Flight
"Hi Moglos, I am wondering how a plane can have multiple CG and still fly on all of them without a problem?By the way, what is the motor size you were using with the prop 14 x 9?  Elios"
Aug 14

moglos commented on moglos's blog post Anatomy of a 126 km Flight
"Just a quick reply, I haven't watched your video or checked your details, but I flew with 7cm. I had trouble to start with too, it went into a flat spin a couple of times (which was actually not too bad, it was very gentle and slow with such…"
Aug 14
Elios commented on moglos's blog post Anatomy of a 126 km Flight
"HI Moglos,  What was the CG that you were able to fly with? We are having a serious problem with our Maja plane. The manufacturer told us that the CG is 7.5 cm, but it was all time heavy tail, and we were only able to balance it at CG 5cm. We…"
Aug 14
nickthecook commented on moglos's blog post Anatomy of a 126 km Flight
"Wow... that's impressive. Did you maintain any link to the craft while it was in the air, such as telemetry or RC? What was the maximum distance from launch that your craft went while in flight? @Rob, Gary: I think 10km is a good starting goal…"
Aug 6
Elios commented on moglos's blog post Anatomy of a 126 km Flight
"HI Moglos, Which Motor and prop have you used in your flight? "
Aug 6
DG replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"In Flight Planner, change WP radius to a lower number, just don't make it too small. You can also have it stop and delay at each WP (in box to the right of WP). I like to have the nose oriented toward each new WP as well. There are many…"
Jul 27

moglos replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"SOLVED! My roll and pitch P settings were just too docile. I flew new circuit at a new location and it was just as bad, then I increased the P settings from 0.08 in several steps up to 0.11 and got a big improvement. (Ignore the wander around WP6, I…"
Jul 27
Spencer Willis replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"It might be possible that your magnetometer is pointing the wrong way? I'm not sure what might happen on an auto flight if that is the case."
Jul 25

moglos replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"The HDOP was about 1.8m on average. I had 11 sats for 98% of the time (a few seconds down to 10 or 9). All very good so I was wondering if there are any navigation settings I need to tune. It was Saturday the 12th of July (from memory) and I'm…"
Jul 24
F. C. Bearsch "Tearig" replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"when was this and where you? I had a issue the other night on a quad I felt had solved the loiter hold problem a few weeks ago, then it seemed back, however noticed that my gps on my phone was also not very sensitive either at that point.  it…"
Jul 24
nickthecook replied to moglos's discussion Bad GPS navigation in the group Arducopter Y6 Owners
"That is pretty bad! I'm having GPS issues too. I seem to have HDOP of 2.2 or 2.4 even with 9 or 10 sats locked. You mentioned your satellite count, but what was your HDOP during the flight?"
Jul 24

moglos added a discussion to the group Arducopter Y6 Owners

Bad GPS navigation

I did a small test mission last weekend and found the GPS navigation accuracy was quite poor. I've attached a screenshot showing the actual path taken compared to the WP path it should have followed from WPs 2 to 9. The speed was set to 5 or 6 m/s.I flew the same mission 3 or 4 times and it was just as bad for each flight.The WP circles shown are 3m radius to give you a sense of the scale. I had 9 or 10 satellites the whole time. I was in a very shallow valley, I didn't expect any GPS…See More
Jul 23

moglos replied to nickthecook's discussion ESC-motor wires outside the frame? in the group Arducopter Y6 Owners
"Good questions, I had been thinking about questions 1 and 2 myself from the point of view of freeing up a bit of space in the body, and perhaps some minimal weight reductions. My feeling is that the answer to 3 and 4 is no."
Jul 18
Al Creigh commented on moglos's blog post Anatomy of a 301 km Flight
"moglos can you provide the motocalc air frame numbers or saved file for me so I can begin testing?"
Jul 17

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Heli and fixed wing

Moglos's Blog

Anatomy of a 301 km Flight

Posted on May 1, 2014 at 6:30am 58 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…


Anatomy of a 100km attempt

Posted on December 12, 2013 at 3:30am 73 Comments

I'd like to fly my plane 100km. Partly to earn the cool badge, but mostly to see if I can.

The airframe is a Bormatec Maja airframe which is made from EPP, has a wingspan of 2.2m and an empty weight of 2kg.

I've been tuning it over the last several months to get the best efficiency I can. I've…


Comment Wall (6 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 12:44pm on May 1, 2014, John Smith said…

My doesn't that Badge look nice.....Better than any other cheap 200Km badges around.....oh yeah there AREN'T any of those out there either !!  Great Job again. Wayne Garris is blowing a gasket over this one....

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

Hey moglos my email is 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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