"@Ian, The airfoils are on the plans. They are something we cooked up in XFoil, but they are just a cross between an MH60 and S5010(?). Tip airfoil has the LE radius increased to help with tip stall.
@Gary, It's 5 mil lamination film…"
Coby's Discussions
Gumstix Robovero
Started this discussion. Last reply by Coby Jul 15, 2011. 3 Replies 0 Likes
I ran across this board from Gumstix and wondering if anyone has been playing with it: …Continue
Coby's Page
Latest Activity
DeveloperJohn Arne Birkeland commented on Coby's blog post Nurf Kit Released
"What's the deal with forward swept wings just looking ridiculously cool..
Just like the sexiest jet ever built, the NASA X-29."
Jack Crossfire commented on Coby's blog post Nurf Kit Released"Yes, using an existing brand name to sell more of your product is bad."
ModeratorGary Mortimer commented on Coby's blog post Nurf Kit Released
"Nice covering job, what did you use?"
Ian Drennan commented on Coby's blog post Nurf Kit Released"Looks similar in plan form to the Saracin which I built and flew as a slope soarer some 30 years back. From the photo it looks like the wing has a slight forward sweep on the leading edge. It would be interesting to know what wing section it uses."
Coby commented on Coby's blog post Nurf Kit Released"Ahh, I forgot all about getting nurfed while surfing. Board to the nose if I remember correctly. Not a surfer though."
ModeratorSgt Ric commented on Coby's blog post Nurf Kit Released
"You mean the Nerf football.
I thought you were a surfer dude and using slang for hitting someone. (Not the dirty version)"
Coby commented on Coby's blog post Nurf Kit Released"Ha. Officially it's short for Nurflugel. Unofficially it is a bit like a football my brothers and I used to hit each other with."
ModeratorSgt Ric commented on Coby's blog post Nurf Kit Released
"Ya, but if you run into anyone with this plane, the lawyers will have a field day with a name like that.
It's like having a sign up that says "beware of dog", and then someone gets bit, the lawyers can prove you knew it was a…"
Coby posted a blog postNurf Kit Released
Just wanted to let y'all know the Nurf Kit has been released. Build videos, assembly instructions, and plans are also available here:https://www.flyingfoam.com/content/nurfIt's even made in the USA.See More
Coby replied to Richard's discussion Using Flying wings for aerial mapping"I did not see an answer to your earlier question about CG being measured from LE or TE - It's measure from LE @ center line (nose). That calculator is a handy piece of gear.
You could be seeing more issues in winds with your scaled up…"
Coby replied to Richard's discussion Using Flying wings for aerial mapping"Well, I am out to lunch as you are already on it. Thought that was a picture of a hatch cover, but it is indeed a foam fuse of sorts. I like it. Will probably reduce your aspect ratio just a bit and increase your wing loading as…"
Coby replied to Richard's discussion Using Flying wings for aerial mapping"@Richard,
First, thanks for taking the time to share your experiences. Having done a bit of flying/crashing myself I know how instructive it can be.
You may find it would help to cut yourself a small fuse to hook under the mid section of your…"
Coby commented on Coby's blog post Nurf Flying Wing Design"A few more changes:
- Thrust line adjustment to account for moving motor up
- Switching to a .188" CF rod for vertical fin retainer (untested as of yet), as the spring canopy pins are a bit pricey and can be hard to find.
- Switched to balsa…"
Coby commented on Coby's blog post Nurf Flying Wing Design"Nurf V3 has been built and flown. We cut back the nose with a band saw and added a GoPro for this model. Might fall into the "so ugly it's cute" category. James wants to call it Fruit Bat. Whatever you call it,…"
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Coby's Blog
Nurf Kit Released
Posted on April 23, 2013 at 3:00pm 9 Comments 2 Likes
Just wanted to let y'all know the Nurf Kit has been released.
Build videos, assembly instructions, and plans are also available here:
https://www.flyingfoam.com/content/nurf
It's even made in the…
Continue Nurf Flying Wing Design
Posted on January 11, 2013 at 8:00am 17 Comments 3 Likes
All,
I just wanted to share a design we have been working on for the FPV/DIY UAV crowd.
Our goal was to design something relatively rugged, easy to build/use and affordable. And since we CNC hot wire cut foam cores for a living it needed to be manufacturable with our current…
Continue MCopter After PID Tuning
Posted on February 19, 2011 at 10:24am 5 Comments 0 Likes
Here's a short flight after I did a bit of PID tuning. Flying latest ArduPirates code and still need to tune the hover and position…
Continue MCopter Maiden Video
Posted on February 17, 2011 at 8:45am 2 Comments 0 Likes
Here's a short video of the maiden flight. I spent some time after this flight tuning the PIDS and am now waiting on the battery charger and the…
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