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Old Jan 10, 2010, 07:34 AM
What goes up, must be repaired
Mid-Michigan
Joined May 2009
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This is great!

I KNEW this was the place to post a challenge!!! Nice work F&T! Would love to see some flight video.
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Old Jan 10, 2010, 02:45 PM
Registered User
USA
Joined Oct 2009
9 Posts
Reminds me of the Trek Aerospace 'Dragonfly'.



http://www.trekaero.com/OVIWUN_Video.htm
I haven't seen anything new from their website in a while, but they could probably make some extra money if they tried to market a cheaper version of their 'Oviwun' rc craft. You could just slap on your own design based off of movie props.
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Old Jan 10, 2010, 08:42 PM
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USA
Joined Oct 2009
9 Posts
One more thing please. Once you guys master this topic, it would be great if somebody will try to build a G.I. Joe 'SkyHawk' using micro-turbines or EDFs.

http://www.yojoe.com/vehicles/84/skyhawk/

I love the Vtol section of rc groups.
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Old Jan 10, 2010, 08:58 PM
Flying with the eagles
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Eagle's nest
Joined Nov 2008
2,121 Posts
Quote:
Originally Posted by foam and tape View Post
5 hours later, I came up with this. I just saw the movie yesterday (it was awesome) and you guys tempted me with the challenge to make one of these. Got a gyro on roll and pitch, testing is going fairly well, I can let go of it for a few seconds before the roll axis becomes tooo unstable.
Very nice and inspiring. video please!
Need to reinforce that duct, it looks fragile in a crash.
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Old Jan 10, 2010, 09:52 PM
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beavercreek,ohio
Joined Jan 2007
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forgot the memory card for my cam today, it's stable on the roll/yaw axis, pitch (elevator) is a real problem. I need to add stronger servos and possibly a tailroter if the servos cant stop the oscolation problem
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Old Jan 10, 2010, 09:57 PM
Flying with the eagles
etman's Avatar
Eagle's nest
Joined Nov 2008
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Quote:
Originally Posted by foam and tape View Post
forgot the memory card for my cam today, it's stable on the roll/yaw axis, pitch (elevator) is a real problem. I need to add stronger servos and possibly a tailroter if the servos cant stop the oscolation problem
Could you show how you arranged your servos?
Only on the pitch? How about the roll?
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Old Jan 12, 2010, 05:23 PM
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Joined Nov 2006
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I had an idea on this, which may help with the roll stability issue. Someone should try it if possible, I will, but it will be a few weeks before I have the components (my gear is in another state). Try adding some "dihedral" (I realize its not going to be directly dihedral, seeing as how we're using lift fans and not wings here). This should add some roll stability to the machine with less of a need for a gyro. When rolling to the left, for example, the left fan will be closer to horizontal with the ground, which will reduce the amount of roll input present and move the aircraft back towards horizontal.
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Old Jan 14, 2010, 12:29 PM
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484 Posts
Didn't have time to work on it but have the motor supports completed so far.

Need to intall the pitch servos and it will be good for some test flights. Primarily tests showed there should be enough thrust

Almost everything is made with Walkera s 5G6 parts and 4G3 BL motors and servos.

The fuselage will be built around the balsa support.
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Old Jan 15, 2010, 02:37 AM
noob flyer
singapore
Joined Jul 2008
51 Posts
i would be be interested to make one of this..
but how do i connect the esc and gyros up?
any mixing need to be done on the tx?
v tail mix.. etc?
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Old Jan 16, 2010, 04:59 PM
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vtol

you can see this !
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Old Jan 16, 2010, 05:08 PM
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Bourg-en-Bresse, FRANCE
Joined Mar 2005
407 Posts
Quote:
Originally Posted by foam and tape View Post
5 hours later, I came up with this. I just saw the movie yesterday (it was awesome) and you guys tempted me with the challenge to make one of these. Got a gyro on roll and pitch, testing is going fairly well, I can let go of it for a few seconds before the roll axis becomes tooo unstable.
Really nice & cool !!!
could you give us some details on your electronic installation ???
Thanks,
Bye
sebsoupe
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Old Jan 16, 2010, 09:50 PM
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Sarasota, FL
Joined May 2009
1,029 Posts
yes.. draw up some plans on paper so everyone can can build and improve your evil scientist brilliant plans! great job
tiled PDF would be even better...
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Last edited by bsfixit; Jan 17, 2010 at 12:05 PM.
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Old Jan 17, 2010, 12:58 AM
Retardedly intelligent
foam and tape's Avatar
beavercreek,ohio
Joined Jan 2007
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Unfortunately i didnt have plans. I just cut and glued this thing together really fast. I basicly just kept cutting till it looked about right. Its still uguly though
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Old Jan 17, 2010, 03:05 AM
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Sarasota, FL
Joined May 2009
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the hand drawn notes are the best plans, better than any PDF file.. did you fly it yet?
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Old Jan 17, 2010, 05:00 AM
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Joined Aug 2007
4,248 Posts
No Avatar Samson or Scorpion flying doohickey thread is complete without mentioning the Vector 450 at least once. Looks like a very reasonable price for such a cutting edge design.

If he is getting up to 18 minutes, we should get at least 8 minutes after all the Avatar looking stuff is thrown on.
The spare motors and ESC's look inexpensive as well.
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Last edited by RCvertt; Jan 17, 2010 at 05:14 AM.
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