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Latest Activity

MarcS commented on Gary Mortimer's blog post HABLEG (High Altitude Balloon Launched Experimental Glider)
"Hi Dan, it´s a custom design to fly well at 20km (think Re-number..) and to house the equipment well insulated."
Jul 27
MarcS commented on Gary Mortimer's blog post HABLEG (High Altitude Balloon Launched Experimental Glider)
"Hi Nick, at 20km the plane just flies faster (50-60m/s, 13m/s at ground level), and actually the control surfaces are more effective under these conditions!! We underestimated this effect a little bit which led to a roll movement you can see in the…"
Jul 26
MarcS commented on Gary Mortimer's blog post HABLEG (High Altitude Balloon Launched Experimental Glider)
"Hi, nice to hear many people are interested in the topic.  Let me add some comments as one of the HABLEG crew members.  Flying from that altitude is a really great experience and a massive challenge. If you get the chance, go for it! Our…"
Jul 26
MarcS commented on ZHAOFENG's blog post High altitude flight test: ground3400m,flight altitude 7000m.
"Nice flights! Agreed that Talon is a nice platform, I´m also flying it for mapping and tests :-) I´d also like to know more about your setup and the missions you are flying. "
Jun 2
MarcS commented on CrashingDutchman's blog post Stepcraft 2: a milling, carving, cutting, engraving and 3d printing machine
"People should not think they save buying two dedicated machines in the end with this one... It is a nice hobby cnc mill (but there are many on the market). As a 3D printer it might not be nice to use. Speeds are too slow compared to dedicated (belt…"
Apr 10
MarcS commented on Rob_Lefebvre's blog post Canada to Regulate Recreational Flights Like Commercial
"Is it just me or does this part of the document contain a "wrong equation"... - RPA for recreation = model aircraft - model aircraft community != recreational RPA users != RPA industrie (commercial) Anyway, I can hardly see a point in…"
Feb 11
MarcS commented on Andy Nickerson's blog post Flexrotor operating without launch/retrieval apparatus
"It is a really interesting and well engineered design. My guess is, that because of complexity and price it will end in niche markets, like Scaneagle and Aerosonde..."
Dec 31, 2014
MarcS commented on Greg Nuspel's blog post Coaxial without swash plate
"Hi, interesting idea. Back in my head I did remember something similar. After some search it turnes out it actually was long ago. It is called Keyence Revolutor by a japanese company, which actually also sold mini quadcopter over 20 years…"
Dec 14, 2014
MarcS commented on Adrien HADJ-SALAH's blog post BreezeUAV : An open-source autopilot for UAV
"Hi Adrien, nice project, I know the feeling of developing something from scratch to work :-) Just an advice about the XBee868 from my experience: Take care about the duty cycle with these units. It´s limited to 10% and if you exceed it…"
Dec 10, 2014
MarcS commented on Rob_Lefebvre's blog post New Transport Canada UAV Regulations Arrive!
"Did anyone notice the DO NOT section saying: "Do not fly closer than 9km from built-up areas" Ok, this leaves a lot of space in Canada :-)  But for many applications it means to ask for an SFOC, doesn´t it?"
Nov 28, 2014
MarcS commented on Chris Anderson's blog post ETH drone shows real-time 3D scanning and coordination with a ground rover
"Hi Chris, it´s University of Zurich, which is not ETH, even if they are close :-) "
Sep 1, 2014
MarcS commented on Gary Mortimer's blog post T3 Wimbledon Drone Delivery Challenge
"This T3 seems to favor copters and helis :-( I´d like to go fixed wing but to be able to compete (when I take the Hobbyking Beerlift challenge as a reference would take a huge effort in…"
Jul 7, 2014
MarcS commented on Chris Anderson's blog post ESA does another copter-rover drop, this time with awesomely over-the-top music
"Hey guys, whats the negative attitude about here??? There is a group of researchers showing an experiment using a multicopter. You should use it as a positive example what the technology can be used for... (Even if it´s not Ardupilot :-) And…"
Jul 6, 2014
MarcS commented on Stefan Gofferje's blog post Updated: A closer look at DJI's no-fly zones
"Did anybody, including the thread starter, even watch the video linked in the post? The actual "no fly zone" is 1.5 miles with a cone going higher from there to the 5 mile ring. On smaller airports its 0.6 miles. Not that I would welcome…"
Apr 12, 2014
MarcS commented on Joseph Aletky's blog post 134km/83.5 Mile, 4 hour flight with our Skywalker
"Just to put it in perspective: Over ten years ago, the so called sunrise-sunset competitions (minimum number of flilghts for whole day of electrical flying) were stopped because they were no longer interesting:…"
Feb 12, 2014
MarcS commented on Chris Anderson's blog post High-precision RTK GPS coming to ArduPilot
"Jesus, you are confusing differential GPS and RTK. It has something in common, but to be general, RTK is a method to massively improve precision by measuring carrier phase signals rather then the code, which is normally done. Since the phase returns…"
Feb 8, 2014

MarcS's Blog

Anti whaling activists using UAV to track whaling fleet

Posted on December 25, 2011 at 6:59am 26 Comments

Just found this in the news:

The Sea Shepherd ship, Steve Irwin, deployed a drone to successfully locate and photograph the Japanese factory ship Nisshin Maru on December 24th.…


Deciphering bird flight, scientific way

Posted on April 26, 2011 at 8:13am 1 Comment

There was a lot or rumor about the Festo Smartbird in the last weeks. They actually built a nice bird, mainly by simulating and trial and error (see the movie posted lately Video).

Now scientist go to the roots, letting an owl fly through a bunch of cameras measuring the movement.…


Comment Wall (2 comments)

At 1:24pm on September 20, 2011, Veikko Vierola said…

Hi, is that Cularis in the picture?


At 1:47pm on September 20, 2011, MarcS said…

Hi Veikko,

close :-) it´s an Easy-Glider...

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