"Thanks for posting, worth reading the full article.
Especially the part in payload and cost comparison between Cessna and Scaneagle... It really comes down to the one sentence: They are where it makes economic sense for them to be.
There is…"
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MarcS commented on Chris Anderson's blog post Slate: What the history of helicopters tells us about the future of dronesMarcS commented on Simon Howroyd's blog post Hydrogen Fuel Cell UAV"Austin, I´m referring to the airframe in the link I posted about the flight in 2007...
Nothing about the one of the starter of this post.
Blended winds can be effecient, but are not automatically...
"
MarcS commented on Simon Howroyd's blog post Hydrogen Fuel Cell UAV"Hi,
the feasibility of a (purely) fuel cell powered plane was demonstrated in 2007: http://www.smartfish.ch/index.cfm/fuseaction/show/path/1-129.htm
I just question their concept of using an inefficient drive (1kW ducted fan...) and inefficient…"
MarcS commented on Chris Anderson's blog post First solar powered copter?"It looks like a typical "we´ve done it first" project. Which is fine from an academic/student/publicity point of view. The video is too much focused on the "great possibilities" stuff for me. More technical data would be…"
MarcS commented on Gary Mortimer's blog post Quadcopter Swarm over London for Star Trek - Into Darkness"Jason, watching both videos I think its unlikely they used this system for the London flight.
Looked like normally flying Asctec quadrotor precision.. (which is quite good)
Some arguments...
- Precision was (sadly) not so good (see the moving…"
MarcS commented on Chris Anderson's blog post DIY Rockets site"Joshua, Adam, I think here is the one big point that makes the difference.
The difference between hobby rocketry and spaceflight is just soooo much bigger than the difference between a hobby UAV and a Predator (really...).
I think the goal of…"
MarcS commented on Chris Anderson's blog post DIY Rockets site"Not sure if this is going to work... Some reasons:
- DIY-Drones was founded out of interest, led to a community and then to commercial success. They try to start from the end (probably encouraged by the success story here?) Not sure if a community…"
MarcS commented on PeteD's blog post Space Glider - FPV glider dropped from a weather balloon"David, thanks for the link. Good information.
To everyone thinking about doing the same. Some things to consider:
-Think about the law (flight permissions and radio frequencies). Sadly no info on that...
-Take care with hydrogen (he used for cost…"
MarcS commented on wayne garris's blog post Proposal to merge XFLR5 and PX4"Hi Wayne,
probably the term you are missing is "gain sheduling", and here I think your idea with using XFLR5 data could be a good one! So you pre calculate tables with resulting moments from control surface movements. These are dependent…"
MarcS commented on Eagle's blog post I have a dream.... to fly APM with a beast like this one...."There has been a project some years ago which could be helpful on the way.
http://www.uav.ethz.ch/research/projects/Aerobatic
Especially GPS loss in inverted flight will be a challenge."
MarcS commented on Jiro Hattori's blog post Japanes security firm introduces Quad UAV"Main sensor seems to be the well known laser scanner... plus camera and LED-lights.
Actually 60$ seems quite cheap to me, regarding the cost of this setup and developement. Is there a (english) reference to that? For that price many researchers…"
MarcS commented on Chris Anderson's blog post Examples of Non-Military, Non-Police use of Drones (please add your own)"Gary, I agree we should stay focused on the topic :-) find good examples for UA use!
Atmospheric research:
http://bllast.sedoo.fr/campaigns/ http://www.svalbardscienceforum.no/pages/news333.htm http://www.cost-uas.net/
Gary, I only…"
MarcS commented on Chris Anderson's blog post Examples of Non-Military, Non-Police use of Drones (please add your own)"I think it is important to have up to date numbers on this because it helps to argument against the fears spread in the news when they are talking about "several tenthousand UAS spying on you..."
It shows there is careful consideration for…"
MarcS commented on Chris Anderson's blog post Examples of Non-Military, Non-Police use of Drones (please add your own)"Gary, thats a hard question t answer, very important, though.
When it comes to legal commercial UAS you should be able to tell by the numbers of COA´s ore equivilant in other countires. I suppose this number is quite limited. Some hundred…"
MarcS commented on Chris Anderson's blog post Examples of Non-Military, Non-Police use of Drones (please add your own)"Chris, I think this is a very important issue. I also get asked things like this quite often...
One thing to consider would be to arrange this list in a manner that people without further knowledge are first pointed at applications that clearly make…"
MarcS commented on Chris Anderson's blog post $1250 RTF UAV for autonomous GoPro filming"If you look at the Lehmann homepage you can see that this system is basically a downgraded version of their other platforms which are able to be programmed with waypoints, telemetry etc.
It´s most likely they try to get into the "mass…"
MarcS's Blog
Anti whaling activists using UAV to track whaling fleet
Posted on December 25, 2011 at 6:59am 26 Comments 5 Likes
Just found this in the news:
ContinueThe Sea Shepherd ship, Steve Irwin, deployed a drone to successfully locate and photograph the Japanese factory ship Nisshin Maru on December 24th.…
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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