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Old Aug 20, 2011, 02:19 AM
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Lockheed Martin's Samurai monocopter


Flies like a maple leaf. Check it out!

Samarai flies at AUVSI (3 min 36 sec)
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Old Aug 21, 2011, 02:28 PM
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How do they control it? I.E. move it in a direction.
Old Aug 21, 2011, 02:48 PM
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Cool i might have to try somthing like that.
Old Aug 21, 2011, 06:46 PM
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Reminds me of this single blade helicopter...
Single Rotor Blade Helicopter. (Experiment) (8 min 32 sec)


Can you put a video camera on it without the image spinning around?
Old Aug 21, 2011, 06:56 PM
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That is very cool.
Old Aug 21, 2011, 09:26 PM
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Yes; a video camera takes one frame per revolution!

Does this copter use a counter balance for the missing blade?
Old Aug 21, 2011, 09:38 PM
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Quote:
Originally Posted by ForeverFlying View Post
Yes; a video camera takes one frame per revolution!
That sounds interesting. I wonder if it can spin around 30 times per second so the video doesn't drop any frames.

Quote:
Originally Posted by ForeverFlying View Post
Does this copter use a counter balance for the missing blade?
It does.
Last edited by RCvertt; Aug 21, 2011 at 10:39 PM.
Old Aug 22, 2011, 04:04 AM
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Better still, take multiple frames for revolution so that you always have a panoramic view you can pan around. The stitching can be handled by software, , the deformation reticle would be fixed anyhow. And it needs a single servo tab to handle all controls, probably coupled with an electronic compass or a sunspot detector to handle orientment. For a drone is a very good setup, though not ideal to take high definition aerial pictures, and not very good for a manned design or one carryng any sort of useful load
Old Sep 21, 2011, 06:24 PM
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UMD did one also

http://www.avl.umd.edu/projects/proj...ic-samara.html
Old Sep 29, 2011, 09:09 AM
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I dont get how you steer left and right?
Old Sep 29, 2011, 03:52 PM
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the rotor blade has a control surface. this changes the angle of attack of the blade relative to the airflow. If you change it cyclically as it spins, it works for all purposes like an helicopter rotor blade.
Old Sep 29, 2011, 05:19 PM
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I dont get it. Wouldnt it just change the elevation of the craft and not a directional change.
Old Sep 29, 2011, 07:05 PM
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Ok, this is a slightly simplified version that ignores on purpose some effects, like gyroscopic precession. If you lower the flap when the blade is away from you, and rise it when it's toward you, it will lift up when away and lift down when near, tilting the plane of rotation towards you. So it will start to move towards you. A full scale helicopter manoeuvres in the same way.
Old Sep 30, 2011, 12:16 PM
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Maple Seed Helicopter


Here's some good videos of a Maple Seed craft.

http://forums.openpilot.org/topic/62...le-blade-vtol/



Design Race: Maple Seed Helicopter

http://www.makerbot.com/blog/2011/08...ed-helicopter/



More of the Lockheed craft: Detailed photo up close of the device.

http://www.geek.com/articles/geek-pi...pack-20110819/

Kelly
Last edited by corocopter; Sep 30, 2011 at 02:02 PM.


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