About

Gender

Male


Location

Cape Town, Western Cape


About Me:

I am an economist with a special interest in food security and agricultural productivity enhancement. I've also worked as a Business Analyst and Systems Analyst and I designed a niche governmental performance system. In my spare time I enjoy hang gliding and, when I'd rather not fly myself, I fly one of my RC planes or multicopters.


Please tell us a bit about your UAV interest

UAVs are a very exciting area to me, not least because they are cutting-edge, combine aviation, development and analysis. In Africa, starvation is all too real and I see UAVs as a cost-effective way of enhancing agricultural productivity. Besides their role in helping to obtain high resolution multi-spectral imagery, UAVs can also assist with land mapping, which can contribute to optimum land use policy. In September 2014 we launched our agricultural drone: http://www.agridrone.co


Hometown:

Cape Town


Activity Feed

John Stuart commented on Colin Snow's blog post Setting Realistic Growth Prospects for the Drone Market
"Thanks for the feedback!"
Nov 10, 2017
John Stuart replied to andresiko's discussion trigger a camera shorting 2 wires via pixhawk
"Have you checked this guy's products out? He has two that are soldered to the shutter button, one with focus and shutter, the other with just shutter. Also an IR option but that has too much latency I guess:
http://www.rc-flysoft.com/pages/switchidx…"
May 24, 2017
John Stuart commented on Olivier's blog post No Parachute? No problem! (There’s an app for that)
"This is brilliant! Well done on a new clever failsafe"
Apr 14, 2017
John Stuart commented on Chris Anderson's blog post Pixhawk-powered ornithopter
"Fantastic idea and execution - would love to buy one!"
Jan 18, 2017
John Stuart commented on Colin Snow's blog post CropLife Survey: 87% of Ag dealers using UAVs are not generating a profit or don't know
"Maybe multi-spectral ag products from drones are under threat from satellites, but not basic hi-res crop scouting, live video surveillance of livestock, inspection (eg drainage) and security applications. Those products have a bright future."
Jun 15, 2015
John Stuart commented on Jeff Taylor's blog post Event 38 Mission Planning & Mapping Workflow Updates
"Great innovations, thank you for sharing!"
May 21, 2015
John Stuart commented on Christiaan van Vollenstee's blog post South Africa signs new drone rules into law
"Just picked up from Hennie Kieser's interview on Jacaranda FM: cost for licenses are expected to run to R150 000 (about $12000) as CAA expects to charge R600 per hour while vetting our documentation. Are we all still thrilled about these new regulat…"
May 20, 2015
John Stuart commented on Christiaan van Vollenstee's blog post South Africa signs new drone rules into law
"Compare these regulations with those of Canada, the UK or Australia - they are significantly more draconian. Do you know you'll need annual audits, license renewals (biennial in the case of the RPL), four different certifications/licenses including…"
May 20, 2015
John Stuart commented on Randy's blog post ArduCopter 3.2 Released
"Nope, ESC calibration is under setup, not motor sync. It has disappeared."
May 6, 2015
John Stuart commented on Randy's blog post ArduCopter 3.2 Released
"Has the motorsync test been removed? I can't find it in the CLI"
May 5, 2015
John Stuart commented on Bertrand Duchiron's blog post Unmanned : Textbook for UAS studies, a short review
Apr 29, 2015
John Stuart commented on Dave Giles's blog post Drone delivering asparagus to Dutch restaurant crashes and bursts into flames
"Agree with Daniel, that is a low C battery, overload it and you're looking for trouble"
Apr 15, 2015
John Stuart commented on Mark Williams's blog post Using UAVs and NIR photography in conservation land cover classification
"Great work Mark, I've been looking for a good example of drone-imagery plant classification and I think this is one."
Apr 8, 2015
John Stuart commented on moglos's blog post Be careful with LiPos
"I use a converted metal post box. I've noticed metal boxes have become really expensive if you buy them new, so converting something you already have is a cheaper option."
Mar 30, 2015
John Stuart replied to John Stuart's discussion Drone NDVI for Plant Nutrition Testing in Agricultural UAVs
"Hi Alexander, thanks for the feedback. I generally don't make 4 band composites but I have attached the NRGs for the relevant areas of the images. Hope they can be of use.
BTW this is a 50% resize using nearest neighbour, whereas the NDVIs above wer…"
Mar 25, 2015
John Stuart replied to John Stuart's discussion Drone NDVI for Plant Nutrition Testing in Agricultural UAVs
"Sure Dave, so long as you credit us in some way, I would be fine with it."
Mar 23, 2015
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