Sarel P. Wagner's Friends

  • Justin Martin
  • Antonie Kruger
  • Jacob Thomas
  • Johan Franken
  • Electronics
  • Petrus Botha
  • Johann Van Niekerk
  • Russkel
  • sky
  • Anthony Leroux
  • Sam
  • mook
  • Anton Carstens
  • Tiaan Roux
  • Scott Plunkett

Sarel P. Wagner's Groups

Sarel P. Wagner's Discussions

Autopilot first flight

Started this discussion. Last reply by Mark Colwell Sep 27, 2009. 7 Replies

Roadmap Ardupilot Mega

Started this discussion. Last reply by isobot Sep 27, 2009. 12 Replies

 

Sarel P. Wagner's Page

Latest Activity

Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi Leo Delighted to get help with sanity testing and refinements, and also to learn more about your airframe. We are edging closer to flight tests with the new tail assembly in the UK. Just out of curiosity, where are you based? Shane"
Nov 7, 2012
Leo Hogg replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Well I wish you all the best with that project but that list of figures looks a tad optimistic."
Nov 7, 2012
Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Bear in mind that the GNU GPL was written for software. It is probably best to use a license designed for the specific purpose in mind. If you want to license documentation, then things like CC-By-Sa make sense, though when it comes to Open Hardware…"
Nov 7, 2012
Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi Rob Over at the OpenRelief project we have been considering this, and gas engines probably will work best in wet weather. Regarding the airframe, material like foam and balsa might have some problems in wetness and wind, so we are currently…"
Nov 7, 2012
Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi Brian Over at the OpenRelief project we have been considering the issue of powerplant as well, and have come to the conclusion that gas engines probably work best for all-weather endurance. Our current airframe…"
Nov 7, 2012
Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi Leo I thought you might be interested in the Open Source airframe that we are developing over at the OpenRelief project. The design was donated by Edward Strickland, a gentleman with a degree in aeronautical engineering, experience with Open…"
Nov 7, 2012
Leo Hogg replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi all. Just found this thread. I have been working on a UAV airframe for a couple of months now and just had the first flights. Originally it was intended to be hand launched but 4kg was a bit of a struggle (with the TX in the other hand), so I…"
Nov 5, 2012
Brian A. replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Hi all, Iv'e watched this thread grow, by now there should be loads of actual drawings to put up for a vote. Someone suggested a competition earlier, I guess that would do well.  Also how about a rotary engine as prime mover? Perhaps even…"
Nov 2, 2012
Rob replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"As I think about search and rescue or any other type of 'urgent' small UAV application, I am concerned about rain and high winds.  Where I live it's been raining and high winds for all but one day out of the last 3…"
Oct 18, 2012
TheArrow replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"So I've realised that you can only copyleft the documentation, and not the hardware itself.  So you effectively end up with a BSD-style license.  This is not the end of the world of course, the documentation always remains free,…"
Aug 20, 2012
TheArrow replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"I'm working on the documentation and prototype for a UAV platform and had the idea to start an Open Hardware project with it.  And then I stumbled on this thread.  I realised a few things by reading this post and the comments,…"
Aug 19, 2012
Wrongway replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"Very Cool Sarel !"
Jul 27, 2012
Shane Martin Coughlan commented on Sarel P. Wagner's blog post Open Source Airframe
"It looks like this project has stalled (also in another thread: http://diydrones.com/forum/topics/open-source-uav-airframe?xg_source=activity&id=705844%3ATopic%3A107318). However, perhaps everyone will be interested to note that an Open Source…"
Jul 6, 2012
Shane Martin Coughlan replied to Sarel P. Wagner's discussion Open Source UAV Airframe
"It looks like this project has stalled. However, perhaps everyone will be interested to note that an Open Source Airframe has just been released by the OpenRelief project. Here is an overview of the specs: * Length 1.4 meters * Wing span 1.8…"
Jul 6, 2012
Sarel P. Wagner commented on Graham Dyer's group South African DIY Drones User Group
"Gr8 going, I'm from Centurion, way to busy currently, not much time anymore :( Rgrds"
May 21, 2012
Sarel P. Wagner commented on Petrus Botha's blog post Who is interested in helping, I need everyone in this community
"I,m in :D Rgrds"
Dec 7, 2011

Profile Information

About Me:
JR DSX9
Easystar with Brushless
Hometown:
Centurion, South Africa

Sarel P. Wagner's Photos

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Sarel P. Wagner's Blog

Events or Calendar

Posted on April 16, 2010 at 2:54am 1 Comment

Chris, how about a section for events or even a calendar so we can keep track of events, meetings and other relevant UAV issues?

Rgrds

IASSA, Light Unmanned Aircraft Flight Demonstration

Posted on November 22, 2009 at 8:30am 19 Comments

This event happened on Sunday 22 November 2009.



More images and videos to follow soon.



UAV Flying Day v2.pdf The brochure.

All these shots on a Sony HD Webbie (my UAV camera) as a…

Continue

Laser rangefinder with RS232 output

Posted on October 16, 2009 at 3:58am 6 Comments

See: http://www.opti-logic.com/industrial_rangefinders.htm Pricing from $495 for the 100 yard unit to $595 for the 400yard one.



7-9VDC conditioned required and Current draw @ full power (~ 1.8W)



Range (Minimum 4 Yards)

Resolution 0.2m

Dimensions: 32x78x84mm

Weight: < 8oz…



Continue

Open Source Airframe

Posted on September 30, 2009 at 5:33am 8 Comments

Can anybody shed some light on the accuracy of the airflow around the fuselage on the attached image? The wing is based on the GM15 foil. Rest of the details is in the picture. The modeling was done with XFLR5.



Does the results of lift, drag etc look credible?…



Continue

New Laser Rangefinder

Posted on August 17, 2009 at 8:26am 5 Comments

Aerius Photonics of Ventura, Calif., is showing its new 25-gram miniature laser rangefinder, the MLR 100, designed for use as a proximity sensor, height above ground sensor, laser altimeter and scanning transceiver for miniature laser detection and ranging (LADAR) systems.





Also a link:… Continue

Comment Wall (11 comments)

At 3:16pm on June 1, 2009, dionh said…
Sarel,

Have you ordered components from sparkfun before I would like to know how much the import duty and delivery costs are to SA and also how long it takes to arrive.
Dion
At 1:01pm on October 1, 2009, Mogly (Umesh Tharanath) said…
are you avaliable in chat ?
At 1:43am on February 13, 2010, Gagarien said…
Sarel Grand Central Airport - Helicopters
At 2:04pm on February 13, 2010, Gagarien said…
Waar by Megawatt park? Lekker, any way ek karring net rond met Ardupilot soos wat ek kans kry maar is al lank deel van DIY drones nog voor Ardupilot dae. Het net nie altyd die tyd nie maar mal oor die Arduino platform.

Het vir my n Maxi Swift gekry en lyk na n goeie platform vir Ardupilot my tweede wing, ek sien Gary is ook n wing ou. Nou besig met met toets vlugte en dan gaan ek Ardu installeer, moet ook nog n shield kry ek voel AOA is beter as lug spoed any way die shield het n paar ander voordele.

Dit is nou Ardu pilot # 3 vir my en het al n paar suksesvolle vlugte. 1 = Gentle Lady glider met ailerons(Gesteel), 2 = My eie pusher 2m(Besig met repairs), 3 = Maxi(In progress).

Watse aerie gebruik jy Easy star?

Jurie
At 10:07pm on February 13, 2010, Sarel P. Wagner said…
Hi Jurie,

Eks is by Escom Convention Center in Dale road in Midrand. Ahh so jys al lank met Diy Drones ne. Ek vlieg Easy Star, maar vir my gaan dit meer oor die elektronika en my patent. Het al hele paar vlugte gemaak, en suksevol in waypoint mode gevlieg.

Tans besig met die nuwe Ground station vir die nuwe Mega Ardupilot. Ek is die team lead vir die span en doen die ontwerp van die groundstation saam met n ander plaaslike pel van my, Johan.

Ek is ook besig, soos ek tyd kry, om n hele nuwe airframe te ontwikkel, nie n wing nie, maar n slow flyer wat spesifiek ontwikkel word vir fotografie en video soos ons dit gebruik. Die ding is moduler en hopelik maklik om te bou. n Opensource airframe as jy wil.

Groetnis
At 7:10am on February 16, 2010, Gagarien said…
Dis reg jy het gese Dale road. Baie nice sterkte met patent en Ground station ongelukkig kan ek nie tehulp wees nie. Dalk loop ons mekaar raak of as jy n gap het maak n draai by die lughawe en kom beloer ons helikopters.

Groette
At 3:43am on January 12, 2011, Petrus Botha said…

Sarel,

 

Ek is nuut tot UAV's en wil graag n klompie vragies beantwoord he voordat ek n klomp geld gaan bestee op iets wat dalk of dalk nie gaan werk nie. Ek woon en werk vanuit my huis in Lyttelton Manor en wal graag weet of ek met jou kontak per afspraak of telefonies kan maak om meer lig op die UAV onderwerp te lig.

 

Dankie

Petrus Botha

 
At 8:28am on January 13, 2011, Sarel P. Wagner said…

Hi Petrus,

 

Vra gerus, ek is in Clubview.

 

Groetnis

At 2:35pm on January 16, 2011, Petrus Botha said…

Baie dankie Sarel,

 

Ek glo dit is makliker om met iemand te gesels wat alreeds deur die moeite gegaan het en die die autopilot uitrusting verstaan. Soos vroer gese, ek is nuut tot die idee om n vliegtuig op sy eie te laat vlieg sonder dat ek beheer daaroor uitoefen maar is alreeds bekwaam in radio beheer en het alreeds n paar vliegtuie ontwerp, gebou en gevlieg en het daardeur geleer hoe om dit reg te doen.

 

My idee is om n klein besigheid met die UAV's te begin maar soek die regte en goedkoopste manier en toerusting om te leer en klein te begin, daarom die volgende vrae.

 

  1. Ek het alreeds n JR 2110X TX Radio en verskeie RX ontvangers, kan ArduPilot Mega daarmee koppel of moet ek iet anders aankoop?
  2. Ek wil as n "testbed" n TeleMaster tipe vliegtuig deur my ontwerp gebruik, of sou jy iets anders voorstel?
  3. Wat is die reik afstand van die ArdupilotMega, ek weet die huidge voorstel vanuit die forum asook moontlikke reels soos uiteengesit deur SAMAA en Burgerlugvaart is dat die vliegtuig nie oor n seker afstand maak gaan nie (kan nie die presiese afstand en hoogte nou onthou nie). Buiten die reels, kan Ardupilot tot 10Km radius gaan?
  4. Opeenvolgend tot die vorige vraag, as ek tot 10Km radius kan gaan en die vliegtuig is op AutoPilot dan is dit mos alreeds buite die bereik van die radio beheer TX, is dit moontlik?, neem die Autopilot totale beheer oor sodat die RX nie deurmekaar raak soos waneer die radio nie aangeskakel is nie of verbinding verloor het?

Groete

Petrus

At 11:57pm on January 17, 2011, Sarel P. Wagner said…

Ek ken nie die radio nie, maar jy het genoeg kanaale nodig om hom te kan vlieg, meeste mense gebruik 7 kanaal radios. Jy het n skakelaar nodig om tussen die verskillende modes te kan oorskakel.

 

Die gewildste vliegtuig is n elektriese foamie, die Easystar, die Ardupilot werk uit die box met hom. Soek vir "

Roundup/Review of all the EasyStar clones"

op die forum, dit sal jou lekker idees gee.

 

Ons wetgewing se jy mag op vliegvelde 400 voet hoog vlieg, op ander plekke nie meer as 150 voet nie. Jy mag nie verder as LOS (line of sight) vlieg nie, en dis algemeen aanvaar as 1000 voet, ongeveer 400m. Jy mag nie naby paaie, binne 100m vlieg nie en jy mag hulle ook  nie oorsteek nie.

 

Al die res van die dinge soos beheerde lugruim ens is soos normaal verbode. Die UAV is tenvolle n skaal vliegtuig soos onder CAA en SAAMA omskryf.

 

JA as n UAV kan hy vlieg sonder n radio verbinding, endurance is waar die peobleem inkom. En die feit dat jy nie kan sien waar hy vlieg nie, en geen idee het wat met hom gebeur nie.

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