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Old Jan 17, 2013, 04:45 AM
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Originally Posted by seagull10 View Post
Thanks Doctor,

Now there is noticeable difference and I hope the active articulated bat will show its superiority
over the non articulated one. Also I hope, it to be enough stable and controllable .
On the pictures is shown the progress of the articulation angles and IMO the GosHawk 25iV still to be the champion in that field and your best (and closer to the Nature) flying bird and my favorite one

Success on the next test .
i agree totally i love the flying style of this bird regards Brian
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Old Jan 17, 2013, 04:51 AM
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18-4 looks great and flies well also that snow looks so nice nice and cool is 40c here and is only expected to go down to 30c over night regards Brian
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Old Jan 19, 2013, 11:21 PM
K Kakuta
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GosHawk 26iV with Articulated 2mmEPP wings

GosHawk 26iV with Articulated 2mmEPP wings

GosHawk 26iV with Articulated 2mmEPP wings: First Flight test (3 min 33 sec)



With New GLDAB for Gliding.
First Flight Test. Good slow flight and low falpping rate.

Width 94cm Length 44cm Weight 76g (160mA 2cell Lipo)
Receiver: OrangeRx R415 Spektrum DSM2 Compatible 4Ch Micro 2.4Ghz Receiver
Servo: HK-5320 Ultra-Micro Digital Servo 1.7g*2
Motor:C05XL Micro Brushless outrunner 10800kv
ESC: Cosmotec 7A 4.4g Max Power CT-7A V2.2
Gear: Main Gear: GWS Spur Gear IPS A 82TM0.3, Second Gear DIDEL M0.3 Outer 60T Inner12T SPurGear G260(inner 12Tgear was exhaged by GWS 12T M0.3 copper pinion gear) ,Third Gear: DIDEL Outer48T Inner12T M0.3SpurGear G348, M0.3 9T PinionGear
Battery:Lipo2cell160mAh G3
Wing: 2mm EPP
Control: 3CH (a motor, inverted Vtail: 2 servo)
Gliding system:New GLDAB

It follows TB30--- http://trhk.exblog.jp/i16/
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Old Jan 19, 2013, 11:55 PM
K Kakuta
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Bat 18-3 Swing legs: Third Flight test with Body and Red eye

Bat 18-3 Swing legs: Third Flight test with Body and Red eye

Bat 18-3 Swing legs: Third Flight test with Body and Red eye (5 min 21 sec)


I mount with the body and LED Eyes.
This ornithopter is made for the metal band which is active in Europe.
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Last edited by Kazu-kaku; Jan 20, 2013 at 04:31 AM.
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Old Jan 20, 2013, 01:48 AM
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Quote:
Originally Posted by Kazu-kaku View Post
Bat 18-3 Swing legs: Third Flight test with Body and Red eye

http://www.youtube.com/watch?v=P6P67-sml7A

I mount with the body and LED Eyes.
cool that looks great
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Old Jan 20, 2013, 02:05 AM
K Kakuta
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Seagull 24iV-4 with Articulated wings: Test Flight and Gliding 3 on Snow ground

Seagull 24iV-4 with Articulated wings: Test Flight and Gliding 3 on Snow ground

Seagull 24iV-4 with Articulated wings: Test Flight and Gliding 3 on Snow ground (5 min 51 sec)


Good Flight.
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Old Jan 20, 2013, 03:16 AM
K Kakuta
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Dsungarypterus 5-8 with Articulated Wings: Test Flight of Articulated Wings

Dsungarypterus 5-8 with Articulated Wings: Test Flight of Articulated Wings

Dsungarypterus 5-8 with Articulated Wings: Test Flight of Articulated Wings (3 min 0 sec)
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Old Jan 20, 2013, 03:21 AM
K Kakuta
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GosHawk25iV with articulated wing. Good Flight and Gliding and Roll.

GosHawk25iV with articulated wing. Good Flight and Gliding and Roll.

GosHawk25iV with articulated wing : Good flight Roll (3 min 5 sec)
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Old Jan 20, 2013, 04:53 AM
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a fleet of articulated birds excellent. I think you might have inspired me to try build a articulated wing for my large span bird if you dont mind me using your design Doctor Kazu best regards Brian
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Old Jan 20, 2013, 05:14 AM
K Kakuta
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Quote:
Originally Posted by therealthing691 View Post
a fleet of articulated birds excellent. I think you might have inspired me to try build a articulated wing for my large span bird if you dont mind me using your design Doctor Kazu best regards Brian
Perhaps this Articulated Wing system is effective in all ornithopters.
It can be made with simple work.
There is one uneasy point.
At the tail assembly of an ornithopter of Sean, an ornithopter may not do a turn, because going straight becomes strong by this system.
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Old Jan 20, 2013, 06:06 AM
DIY Mania from Taiwan
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Very much enjoyed your articulated flapping wing vids
thanks for sharing
best regads
Sam
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Old Jan 20, 2013, 06:38 AM
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Quote:
Originally Posted by Kazu-kaku View Post
Perhaps this Articulated Wing system is effective in all ornithopters.
It can be made with simple work.
There is one uneasy point.
At the tail assembly of an ornithopter of Sean, an ornithopter may not do a turn, because going straight becomes strong by this system.
ok thankyou Doctor Kazu i will keep that in mind will have to replan my tail similiar to yours.
I still have some carbon sheet just have to put some thought into design my be later in the year thankyou and regards Brian
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Old Jan 20, 2013, 08:55 PM
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Quote:
Originally Posted by Kazu-kaku View Post

Perhaps this Articulated Wing system is effective in all ornithopters.
It can be made with simple work.
There is one uneasy point.
At the tail assembly of an ornithopter of Sean, an ornithopter may not do a turn, because going straight becomes strong by this system.
I am sure Doctor because this system is very simple , very effective and produces very natural wings' movements, it will be widely reproduced in the future.
The turning problem can be overcome in many different ways but I think that the most effective way is by manipulating the outer parts of the articulated wings.
Here is a proposition for one possible solution to the turning problem:

As you can see on the picture everything is the same as in the original
system, the only difference is that the piano wires are attached to the movable (left/right regarding the ornithopter's frame) supporting plate.
The plate is controlled by separate servo which doesn't need to be very strong because the forces applied to the supporting plate in result of the wing's movements actually cancel each other . Moving the plate left or right will create slight differential imbalance in the angles of articulation on both wings, which have to initiate turn . I think that this will work either flapping or gliding, The points named "A" and "B" on the sketch are the pins on which supporting plate slide left or right . The pins are mounted firmly to the frame of the ornithopter and they pass thru the supporting plate oval holes .
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Old Jan 20, 2013, 10:31 PM
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Quote:
Originally Posted by seagull10 View Post
I am sure Doctor because this system is very simple , very effective and produces very natural wings' movements, it will be widely reproduced in the future.
The turning problem can be overcome in many different ways but I think that the most effective way is by manipulating the outer parts of the articulated wings.
Here is a proposition for one possible solution to the turning problem:

As you can see on the picture everything is the same as in the original
system, the only difference is that the piano wires are attached to the movable (left/right regarding the ornithopter's frame) supporting plate.
The plate is controlled by separate servo which doesn't need to be very strong because the forces applied to the supporting plate in result of the wing's movements actually cancel each other . Moving the plate left or right will create slight differential imbalance in the angles of articulation on both wings, which have to initiate turn . I think that this will work either flapping or gliding, The points named "A" and "B" on the sketch are the pins on which supporting plate slide left or right . The pins are mounted firmly to the frame of the ornithopter and they pass thru the supporting plate oval holes .
Hi Otto,
like the idea is very similiar to the trailing edge propotional steering i thought of trying in the past but this is by off setting the articulation great idea i think.
As it only takes minimal difference to make a orni turn a great idea i think
Otto regards Brian
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Old Jan 21, 2013, 04:17 AM
K Kakuta
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Joined Aug 2006
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Quote:
Originally Posted by seagull10 View Post
I am sure Doctor because this system is very simple , very effective and produces very natural wings' movements, it will be widely reproduced in the future.
The turning problem can be overcome in many different ways but I think that the most effective way is by manipulating the outer parts of the articulated wings.
Here is a proposition for one possible solution to the turning problem:

As you can see on the picture everything is the same as in the original
system, the only difference is that the piano wires are attached to the movable (left/right regarding the ornithopter's frame) supporting plate.
The plate is controlled by separate servo which doesn't need to be very strong because the forces applied to the supporting plate in result of the wing's movements actually cancel each other . Moving the plate left or right will create slight differential imbalance in the angles of articulation on both wings, which have to initiate turn . I think that this will work either flapping or gliding, The points named "A" and "B" on the sketch are the pins on which supporting plate slide left or right . The pins are mounted firmly to the frame of the ornithopter and they pass thru the supporting plate oval holes .
This is a good idea. I may make it and test it.
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