"Looking into it further (but still really just scratching the surface), perhaps the best way to communicate inter-process would be UDP. The flight gear comms are over UDP, which I guess would give me quite a good template. Unfortunately I'd…"
Leo Rampen's Page
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Leo Rampen commented on James Goppert's blog post ArkScicos Toolbox now released for Windows/ Mac as well as LinuxLeo Rampen commented on James Goppert's blog post ArkScicos Toolbox now released for Windows/ Mac as well as Linux"This looks useful! I'm going to give it a go next week with some airship control software I've written that needs some HIL testing before we try and fly the thing.
I'm not using MAVLink for comms, so I'd have to modify the input…"
Leo Rampen commented on Aaron Curtis's blog post ArduCopter on an Antarctic volcano"With regards to sonar and cold weather: I know that some sonar devices can be calibrated with a speed of sound value (the SRF02 certainly has that feature), or can be configured to return echo time in uS rather than distance. I guess the speed of…"
andy j commented on Leo Rampen's blog post Japanese UAV - single ducted fan"If japan has tried it, you better believe we've done it a few times too, already hehehe. The following is one of the better single-duct uav's ive seen.
private sector project : honeywell's UAV
http://www.thawkmav.com/
pretty neat,…"
John Ihlein commented on Leo Rampen's blog post Japanese UAV - single ducted fan"Carrying the weight high leads to a stable hover, but creates issues in high speed forward flight."
DeveloperJean-Louis Naudin commented on Leo Rampen's blog post Japanese UAV - single ducted fan
"Below another video about the flight capabilities of the ducted fan Coanda effect UAV in action...
Coanda effect UAV flight demo 2 from Jean-Louis Naudin on Vimeo.
Regards, Jean-Louis"
DeveloperJean-Louis Naudin commented on Leo Rampen's blog post Japanese UAV - single ducted fan
"Hello, have you seen this:
Coanda effect UAV demonstration from Jean-Louis Naudin on Vimeo.
Regards, Jean-Louis"
Hamish commented on Leo Rampen's blog post Japanese UAV - single ducted fan"the fan looks quite wide though, not your average high speed narrow screamer.
plus the duct shields the prop well, looks safer to operate near people than say a heli"
Michael Zaffuto commented on Leo Rampen's blog post Japanese UAV - single ducted fan"Kind of like: Hovereye® VTOL UAV
http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=ADA478763"
Martin Seven commented on Leo Rampen's blog post Japanese UAV - single ducted fan"Single ducted fan Single ducted fan and a bunch of servos and other moving parts.
Ducted fans in this sense (small highspeed prop in a can) have lower efficiency than large props (ducted or not) - every time you double your RPMs (to generate the…"
IKE commented on Leo Rampen's blog post Japanese UAV - single ducted fan"It looks similar in principle with RQ-16 T-Hawk from Honeywell, although by carrying the weight higher it should be more stable. The V-Bat VTOL UAV from MLB is similar in a way (it was featured in the DIY drones podcast also).
These single ducted…"
Leo Rampen posted a blog postJapanese UAV - single ducted fan
A UAV developed by the Japanese Ministry of Defence. The video's in Japanese unfortunately, but it does show some interesting concepts that I don't believe have been seen in many drones before.The principle new concept is the single ducted fan that it appears to use. Unfortunately it's covered up in the close ups, but it appears to use thrust vectoring for stability and control. At the end (last 20 seconds or so) there's a video of the vehicle in flight, which clearly shows the four vectoring…See More
Leo Rampen commented on iangl's blog post Hydrogen fuel for Long endurance UAVs"I know it's nitpicky, but it would probably be a good idea to avoid suggesting that hydrogen fuel cells or fuelled vehicles "run on water", as that gives some sort of credibility to the people peddling those devices which supposedly…"
Leo Rampen commented on Jean-Louis Naudin's blog post TrIMUpter: Full stabilisation and GPS position hold with an ArduIMU+ v2"In further to my previous post, a little bit of research seems to indicate that the yaw servo is there to cancel out the effects of asynchronous thrust, which varies at different engine speeds. That makes sense - sorry for the silly question. Very…"
Leo Rampen commented on Jean-Louis Naudin's blog post TrIMUpter: Full stabilisation and GPS position hold with an ArduIMU+ v2"Hi,
Please excuse my ignorance of this topic, but why is the yaw sensor needed? Does having three degrees of control not give you three degrees of freedom for rotation? Is it present to make control easier (rather than having to undertake…"
Leo Rampen commented on Paul Mather's blog post Closed-source developer forced open-source"I made a long post, but based on reading the RCGroups project, his code isn't based on yours. I wouldn't be surprised if it's influenced by your source, but it's not based on that codebase, and so a DMCA takedown notice probably…"
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- About Me:
- Studying Masters in Aerospace Engineering at the University of Leeds, England. I'm developing a surveillance UAV for my masters project!
- Tell us a bit about your UAV interest
- Remotely controlled aircraft are exciting! I like the idea of real time aerial imagery, and the challenge of building an aircraft that can fly itself.
- Hometown:
- Edinburgh, UK
Leo Rampen's Blog
Japanese UAV - single ducted fan
Posted on November 13, 2010 at 1:47pm 8 Comments 0 Likes
A UAV developed by the Japanese Ministry of Defence. The video's in Japanese unfortunately, but it does show some interesting concepts that I don't believe have been seen in many drones before.
The principle new concept is the single ducted fan that it appears to use. Unfortunately it's covered up in the close ups, but it appears to use thrust vectoring for stability and control. At the end (last 20 seconds or so) there's a video of the…
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