Moderator
Graham Dyer
  • Male
  • UAV/UAS Pilot - Johannesburg. ex-Trails Safari Guide, Mala Mala Game Reserve,
  • South Africa
Share Twitter

Graham Dyer's Friends

  • ChavAnd
  • Steve Stark
  • pma_
  • Mike
  • Edson Moura
  • Spyros
  • Quadzimodo
  • Tyrell John
  • Riaan Vermeulen
  • Ashur Gelyana
  • MA
  • paul riseborough
  • Byron
  • Shaun Mileson
  • DP Joubert

Graham Dyer's Groups

Graham Dyer's Discussions

 

Graham Dyer's Page

Latest Activity


Moderator
Graham Dyer commented on Andrew Tridgell's blog post APM:Plane 3.2.0 released
"Jake, check COMPASS_EXTERNAL is 1, Pixhawk detects it automatically whereas APM needs that to be set."
11 hours ago

Moderator
Graham Dyer commented on Randy's blog post ArduCopter 3.2 Released
11 hours ago

Moderator
Graham Dyer commented on Andrew Tridgell's blog post APM:Plane 3.2.0 released
"Hi Tridge, did the gimbal return-to-center command make it into this release?"
yesterday
iskess replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"I have blurry zoomed in images too. I think it might be a Google issue. When I go to google maps, I can't zoom in as much as I used to. So MP is trying to zoom in when google won't provide the next tile."
Sunday

Moderator
Graham Dyer replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"You're funny, thanks."
Sunday

Moderator
Graham Dyer posted a discussion

Log analysis: command details?

How does one tell from a dataflash log when and what details were in a command that was sent to an aircraft via telemetry?We sent a change altitude command to an aircraft which did not react to that command correctly so we want to determine what was sent?The last MSG was "Executing nav command ID #17".See More
Sunday
Steven G replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"You da man!!!"
Sunday

Moderator
Graham Dyer replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"No, not all the features :) but I fly 40-120km EVERY single day/night, seven days a week, weather dependent up to 25km distant and have been for the last 5 months clocking up over 5000km (3100+miles), while using live video feed on a pan & tilt…"
Sunday
Steven G replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"You may not use all the features. Don't do a pre-flight calibration unless you want surprises. Check you meters vs feet too."
Sunday

Moderator
Graham Dyer replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"Actually MP works very well with planes, I don't know of much that is geared specifically towards copters. .10 was the last version that I had no problems with, the RSSI values disappeared with .11 but are back with .13/.14."
Sunday
iskess replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"Thanks for the correction, I should verify before I post but I was too lazy."
Saturday
Steven G replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"Not correct. That problem starts and remains in .11 and above. I thoroughly tested .10 for fixed wing issues that would affect the things I do/need and so far no issues. It would seem that MP is optimized for copter guys."
Saturday
iskess replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"I believe .10 has the Preflight Calibration issue where it resets the accelerometer to a new level."
Saturday
Steven G replied to Graham Dyer's discussion Google Maps blurry at zoom with update of MP (v1.3.14)
"I have had difficulties since with anything after v1.3.10. The advice of the developers is always a clean install. I find the .msi works best. But that solution has not helped on any of my issues. 1.3.10 seems to work fine for me. I'll stick…"
Saturday

Moderator
Graham Dyer posted a discussion

Google Maps blurry at zoom with update of MP (v1.3.14)

I've heard of this before but I don't remember the solution, when I try zoom greater than level 17 or 18 using Google satellite or hybrid the photos are blurry, whereas with Bing maps they are sharp at high zoom levels. Google satellite used to be sharp before the update.Anyone know the solution?See More
Saturday

Moderator
Graham Dyer posted a photo
Nov 20

Profile Information

About Me:
I worked as a Safari Trails Guide (Lead Rifle) and Ranger and guide in the South African Wildlife Tourism Industry for about 20 years.

Now I'm a professional UAS/UAV/RPAS Pilot. I fly drones 40-120km, both at day and at night, 7 days a week on a special project. 120 hrs and 4673km as of end Nov '14.
Please tell us a bit about your UAV interest
DIY Carbon H-frame QuadCopter with 200+ flights (25+ flying hours), APM2, 3DR Telemetry, 20-22L motors, 12x3.8 carbon props, 5000mAh 3S Turnigy Batts, 15 minute flight time, Sony 520TVL camera, 1.2GHz 700mW Video Transmittor + inverted Vee antenna, Video googles & 9" Dvd monitor.

New carbon Tricopter

Twin boom FPV 1.75m plane for long distance Nav & FPV. ArduPilotMega1 v2.65, 4+ flying hours.

Old: Own design & built twin-boom UAV Plane (now RIP)
ArduPilot v2.7.1, ArduIMU, MediaTek GPS. Had clocked 50+ hours flying time.

Slowstick - ArduPilot Legacy v2.6.2, Thermopiles, Used for FPV and as a stabilized trainer.
Hometown:
Randburg, Johannesburg, South Africa

Graham Dyer's Photos

Loading…
  • Add Photos
  • View All

Graham Dyer's Blog

Prop testing on a 'copter

Posted on April 18, 2014 at 9:43am 16 Comments

I wanted to do a few real world hover tests with different prop sizes to satisfy my curiosity.

I tested 3 sizes of some commonly used props, the RCTimer Carbon 10x4.7, 11x4.7 and 12x3.8, all carefully balanced. There are other very similar props branded differently.

The 'copter is a carbon…

Continue

ArduPilot formation flying revisited

Posted on April 14, 2014 at 11:29pm 10 Comments

Further to our first attempts at fully automated formation flying (see…

Continue

Another 100km+ flight

Posted on February 11, 2014 at 4:00am 33 Comments

Went for our long distance flight attempt today, flew a test flight with a 6S 2600mAh LiPo and then put in the 18650 batteries in, the log unfortunately shows both flights as I forgot to reconnect so I have calculated the time and total distance from the launch of the second flight to the…

Continue

Finwing Air Titan

Posted on February 6, 2014 at 11:30am 17 Comments

Looks like a good fpv/camera ship for long distance flights with…

Continue

ArduPilot formation flying attempt

Posted on January 7, 2014 at 1:00am 12 Comments

We tried some formation flying with 2 different APM equipped planes.

Both were loaded with AP v2.76 and the same exact mission except for the chase plane flying 20m higher than…

Continue

Comment Wall (16 comments)

At 5:52am on July 24, 2009, Robert Hannaford said…
Hi Graham,

Please give me aring when you get a chance, Rob Hannaford 011 781 4029, 0733000337
At 5:43am on August 20, 2009, viky said…
have u got success in reversing ur aileron ... i m using same setup with XY sensors
At 2:12am on August 21, 2009, viky said…
i think i can correct it but want a clear view ur ailerons r reversed in automode or manual mode. If its auto change is to be done in the code else it has to be reversed using RC remote... let me know whats exactly it is
At 2:40am on August 21, 2009, viky said…
so u must have tried #define ROLL_REVERSE 1 , then nothing happened ... am i right..
At 3:08am on August 21, 2009, viky said…
actually the same problem i had faced but my elevator movement was reversed
in autopilot so i tried to correct it by #define PITCH_REVERSE
but nothing happened later i found thaT this header is not at all used inside code so i just follow the logic in code and got the line to reverse the motion of either aileron or elevator in ... void pulse_servos(int roll, int pitch) //Normal mode
{
pulse_servo_1(90+roll);
pulse_servo_2(90-pitch); //invert sign if you want to reverse the servo...
}

This is what i had changed then to work it well.
so
I did few tests and got semi success in few , hopefully i can make it this time atleast 80% success with little changes in trim as u recommended in ur blog failure and success.
Its very nice blog i will try to write the one ... it really helps ourselves and others
At 2:49am on August 24, 2009, Garth said…
Graham please contact me
021-7827148 or 0827708200

GARTH
At 4:41am on March 11, 2010, Cronselaar said…
Hi, this must sound stupid, but how do you get the nice line logs in GE... My current position just constantly changes. I'm using a E406. I can't seem to get the right altitude data in the GS2 either.. Any help would be appreciated.

Gerrit
At 9:58am on August 17, 2010, Robert Hannaford said…
Hi Graham, won't you please send me you cell no I have lost it, Regards Rob Hannaford

0733000337
At 8:08am on October 17, 2011, bruno voisin said…

Hi Graham, this is Bruno from Cape Town. 

These are my first steps in the UAV world, and I am interested in building a ArduCopter to conduct game counts in a nature reserve.  Any advice / recommendation would be most appreciated.

Thanks in advance,
Regards
bruno

At 1:31am on November 7, 2011, Robert Dielenberg said…

Hi Graham,

we're developing a UAV here in Newcastle, Australia. We've been experimenting with the ardupilot 2_7_1 for a few months. Having huge problems with altitude hold and throttle. We're using a petrol engine. We realize the original ardu is for electric. It seems there is not much data on petrol engines for ardu. We had a crash last week and lost the plane. We're going to rebuild the code from scratch and simplify it. Will get back on to you on our progress. Cheers,

 

Rob Dielenberg, MotMen UAV (www.motmen.com)

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

© 2014   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service