Gustav Kuhn
  • Male
  • Cape Town
  • South Africa
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Gustav Kuhn's Groups

Gustav Kuhn's Discussions

IRIS/Pixhawk rollover

Started Jun 16 0 Replies

Hi, a friend of mine has the above combination, and now has had two crashes in a row.Here are the log files, I can't find anything obvious....Continue

IRIS change stick mode from 2 to mode 1

Started May 16 0 Replies

Other than the mechanics of such a change, how do I get into the software of the TX to do that ?Continue

APC Multirotor props

Started Jan 18 0 Replies

As the topic says.......I picked up a set 10X4.5 from my LHS.Looks good, substantially stronger hub, less flex.Weirdly enough, although the current is the same in hover, the motors run cooler.…Continue

AVR vs. PIC32

Started Sep 2, 2013 0 Replies

Since my first foray into the world of micro controllers was the PIC 16F84, always had a soft spot for MicroChip.....…Continue


Gustav Kuhn's Page

Latest Activity

Gustav Kuhn commented on David Anders's group X-UAV Talon
"Elios, Foam presents NO obstruction to radio waves, so you can safely have the antenna inside the body.... Tim, info noted, there is a miniTalon lying on the bench :-)"
11 hours ago
Gustav Kuhn commented on David Anders's group X-UAV Talon
"Are you talking about Talon, or miniTalon ? I might have too big a motor in it, but that is what I had, and since I hand launch, I wanted the power ! I work from the "100W per pound" rule of thumb might be overkill on my planes, but it…"
12 hours ago
Gustav Kuhn commented on David Anders's group X-UAV Talon
"Ok, I weighed it, 2.88 Kg"
13 hours ago
Gustav Kuhn commented on David Anders's group X-UAV Talon
"Elios, I haven't weighed the plane yet. I'm using 3 HobbyKing 4000 mAh 3 S packs in parallel, with a 900KV 3548 motor, 12X6 prop. I can safely do 70 minutes at 60 Km/h. My Talon draws between 7 and 9 Amps at that speed, 7 in smooth air, up…"
13 hours ago
Gustav Kuhn commented on David Anders's group X-UAV Talon
"@Elios, Welcome! All depends how high above sea level you live. At 600' ASL my Big Talon, with 12000mAh 3S and GoPro, no wing extensions, flies best @ 60 Km/h. Previous posts on this forum will give you the param file. And as Tim said, if you…"
14 hours ago
Gustav Kuhn replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi, I'm in South Africa. Previously, I had up to 12 GPS sats during power up. Lately, I only get a max of 8 sats, confirmed with my phone, and tablet. Anyone else in Africa noticed/confirm this ? Oh, my 3DR quad flies so well with APM 2.6, I…"
Sep 11
Gustav Kuhn commented on David Anders's group X-UAV Talon
"Hi Antonie, Yes, I hand launch in normal mode, with full up trim on the elevators. Standing still. I can only extrapolate flight time, I have 12000 mAh, and Talon draws 7 - 8 Amp @ 60 Km/h airspeed. Weight would be standard airframe, 3548 motor, 3 X…"
Sep 8
Gustav Kuhn commented on David Anders's group X-UAV Talon
"Just to say, had another perfect test mission with my big Talon today, 60km/h airspeed, 7.5 to 8Amp draw, 12000 mA/h of "fuel" in the nose. :-)"
Sep 7
Gustav Kuhn commented on Hugues's blog post How-to "catapult launch" and Arduplane (XUAV Talon)
"Wow, Louis, very smooth launch, do you have some form of guide rails on the wings ? Oh, thanks for sharing !"
Sep 5
Gustav Kuhn commented on Hugues's blog post How-to "catapult launch" and Arduplane (XUAV Talon)
"Well, None of the launches in the video looked safe/controlled. Firstly, the hook has to go much further forward, secondly, launch with the motor at full power. We fly RC next to a full size glider club, and they attach a winch launch cable well…"
Sep 4
Gustav Kuhn replied to Ben Snyder's discussion SPLASH DOWN in the group ArduCopter User Group
"Fresh water, or saltwater pool ? Anyway, first rinse everything in distilled water, then alcohol, then dry with hair dryer on gentle heat. Fresh water you might stand a chance, salt, well luck of the draw. Smoke never is good :-("
Sep 1
Gustav Kuhn replied to Jason Nowell's discussion APM Based Full Sized Boat to Navigate Pre-Programmed GPS Course
"Aircraft auto pilots use servos where the output shaft normally is bolted to the cables controlling the elevator and ailerons. This output shaft is electro-magnetically connected to the gear train of the servo. Sh!t happens, the magnetic clutch…"
Aug 27
Gustav Kuhn replied to Francesco Bertelli's discussion [Wishlist] Auto-soft-landing on accidental throttle down
"Why ? I mean, the "Throttle" stick on your typical RC TX is a pretty obvious "thing"....... Or should be. "
Aug 22
Gustav Kuhn commented on David Anders's group X-UAV Talon
"@ Antonie, Haven't really tested for stall speed as such, but here at the coast it seems to be in the 20 - 30 Km/h range. If you are straight and level, stall is a non event anyway. I haven't tried stalling it in a bank, yet !!! And…"
Aug 17
Gustav Kuhn commented on Timothy Clemans's blog post Drone seized by police at Los Angeles park
"Mmm, almost always Phantoms, we need more guys like this...."
Aug 15
Gustav Kuhn replied to Sonay Dalal's discussion Looking for a solar powered drone that can fly away 100s of miles at 50miles/hour+ speed
"Yeah, me too ..........."
Aug 15

Profile Information

About Me:
Not much, basically a "copy&paste" experimenter :-)
Please tell us a bit about your UAV interest
Always wanted to have a working drone!
Cape Town

Gustav Kuhn's Blog

Another " Multi Button Mode Switch"

Posted on September 8, 2013 at 12:00am 3 Comments

At this point, more theoretical than practical.

Most TX's use 5V technology, Microchip has a nice 8PDIP, 10K, 256 step, device, the MCP41010, that will happily run on 5V.

If this were to replace a slider or pot on a TX, you would be able to hack any brand TX, even with limited tech skills.

So, this is an attempt…


Comment Wall (7 comments)

At 12:58am on November 23, 2011, Gisela & Joe Noci said…

Hello Gustav!!!!

Yep, thats me!  My goodness, that is a lifetime ago I still remember when we stayed in the hostel and you went to do your radio amateur exam in JHB, in town, that evening!
That is all a very longtime ago.

How are you? I have moved to Namibia , 5years ago, had enough of Gauteng and everything else - was with ATE for the last 18 years or so. Now live next to the sea, in a quiet and peacefull place, playing UAV's...

Very nice to hear from you. Maybe we can make a sked on HF, if you are still into that!

Keep well.
Kind Regards

At 12:17pm on November 23, 2011, Gisela & Joe Noci said…

Well, as least you are out of Gauteng, but you left early on anyway - good that you never came back!  I was with a commercial company for about 2 years after Atlas, then went to Andromeda, doing BIT Slice processor copies of VAX computers, then went to ATE, did Rooivalk mission and weapons systems, Pilatus trainer avionics, lots of UAV work, big stuff - 160kg plus, etc, etc, and left them 5 years ago. Now I am having fun! Also busy now with a big quadrotor, own design, using helicopter blades 750mm diameter X 4. Hope to carry a 2kg camera for 1 hour...

Well, I hope if you 'die' there it is in the far distant future!


Keep well Gustav.



At 3:06pm on May 6, 2012, Carl La France said…

Hey Gustav I am not carrying any extra weight other than I C?A ed the wings to the fuselage so they don't pull apart have a good day


At 2:23pm on July 25, 2012, Gisela & Joe Noci said…

Hi again Gustav,

Have seen you guys and Big Bertha, etc. I did something similar with a Lanyu 100 - check on DIYDrones blog for Nampilot and HORNBILL - also GUPPY and SurVoyeur, our latest commercial product - having far to much fun for two people out here in Swakop!.

How things going?>>


At 1:02am on July 26, 2012, Gustav Kuhn said…

Hi Joe,

So envious of your successes !

Big Bertha has been mothballed, the client realized that they required a certain proficiency with operating RC equipment, that they did not have.

I don't get much chance to RC here lately, other interests, work, the weather, all conspires against me !

I've looked at your website, very impressive.

At 11:50am on October 15, 2012, John said…
At 11:50pm on April 23, 2014, Walter Smit said…

Hi Gustav

I had to hand over the project to an old university colleague of mine - who has more experience in the things that the client now suddenly wants (multispectral imaging and vegetation mapping). I wish I could be more involved!



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