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Old Aug 28, 2011, 06:50 AM
K Kakuta
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Deadly Nadder 16-1 Dragon Ornithopter

It is RC ornithopter of Deadly Nadder that is dragon in the movie "How to train your Dragon".
Now I am making it.
First test flight.
Manoeuverability and a thrust are OK.



Deadly Nadder 16-1 Dragon Ornithopter : First Test Flight (4 min 51 sec)
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Old Aug 28, 2011, 07:33 AM
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nice!
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Old Aug 28, 2011, 08:26 PM
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watched the video a pleasure as normal dr kazu you truly amaze me regards brian
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Old Aug 28, 2011, 09:03 PM
There's magic in those wings !
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I like he carving and craftsmanship ... Also this bird flies fast .. it has a lot of thrust.. I suppose...

Khaled
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Old Aug 29, 2011, 01:29 AM
Kjell Dahlberg
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I like your wing design. It is produsing very good thrust for fast flying.
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Old Aug 29, 2011, 04:52 AM
K Kakuta
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Quote:
Originally Posted by KJELL View Post
I like your wing design. It is produsing very good thrust for fast flying.
Yes, it has very high thrust, so, it fly under half throttle.
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Old Aug 29, 2011, 05:47 AM
There's magic in those wings !
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Dr Kakuta

I've noticed that the main spar consists of two spars attached together ..
Is the outer spar smaller than the inner spar in diameter ... (like tapered spar) ??

Thanks

Khaled
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Last edited by khaled_abobakr; Aug 29, 2011 at 09:56 AM.
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Old Aug 29, 2011, 06:22 AM
K Kakuta
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Quote:
Originally Posted by khaled_abobakr View Post
Dr Ksakuta

I've noticed that the main spar consists of two spars attached together ..
Is the outer spar smaller than the inner spar in diameter ... (like tapered spar) ??

Thanks

Khaled
Yes. inner Spar is 4mm carbon rod.
Outter spar is 3mm carbon pipe.
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Old Aug 29, 2011, 10:05 AM
There's magic in those wings !
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Originally Posted by Kazu-kaku View Post
Yes. inner Spar is 4mm carbon rod.
Outter spar is 3mm carbon pipe.
Thanks a lot ... I always learn new things from you

I hope you're having a normal life now and everything is good again

Khaled
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Old Aug 29, 2011, 10:13 AM
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It flies with on problem at all. You always do well.
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Old Sep 01, 2011, 11:05 AM
DIY Mania from Taiwan
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Dr.Kazu
another master piece.....super job.
BTW,can you share the size of the lipo...
regards
Sam
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Old Sep 01, 2011, 05:28 PM
K Kakuta
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Originally Posted by samwei1950 View Post
Dr.Kazu
another master piece.....super job.
BTW,can you share the size of the lipo...
regards
Sam
Thank you.
Lipo is 900mAh 3cell G3 (hyperion) 11.1V 45C.
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Old Sep 01, 2011, 09:09 PM
K Kakuta
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In making

In making
Total weight without battery: about 240-250g at now
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Old Sep 04, 2011, 01:17 AM
K Kakuta
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Second test flight with no painted body in the strong wind 6-8meter/second.

Second test flight with no painted body in the strong wind 6-8meter/second.

Wind is strong by a typhoon.

Deadly Nadder 16-1 Second Test Fight with body in the strong wind (2 min 29 sec)
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Old Sep 09, 2011, 10:28 PM
K Kakuta
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In Makig

In making.
Body was painted.
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