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Aug 20, 2011, 01:19 AM
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ForeverFlying's Avatar
Discussion

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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Aug 21, 2011, 01:28 PM
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NighthawkF-117's Avatar
How do they control it? I.E. move it in a direction.
Aug 21, 2011, 01:48 PM
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NighthawkF-117's Avatar
Cool i might have to try somthing like that.
Aug 21, 2011, 05:46 PM
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RCvertt's Avatar
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?
Aug 21, 2011, 05:56 PM
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NighthawkF-117's Avatar
That is very cool.
Aug 21, 2011, 08:26 PM
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ForeverFlying's Avatar
Yes; a video camera takes one frame per revolution!

Does this copter use a counter balance for the missing blade?
Aug 21, 2011, 08:38 PM
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RCvertt's Avatar
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 09:39 PM.
Aug 22, 2011, 03:04 AM
Registered User
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
Sep 21, 2011, 05:24 PM
Registered User
UMD did one also

http://www.avl.umd.edu/projects/proj...ic-samara.html
Sep 29, 2011, 08:09 AM
When pigs fly rc
rcrich's Avatar
I dont get how you steer left and right?
Sep 29, 2011, 02:52 PM
Registered User
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.
Sep 29, 2011, 04:19 PM
When pigs fly rc
rcrich's Avatar
I dont get it. Wouldnt it just change the elevation of the craft and not a directional change.
Sep 29, 2011, 06:05 PM
Registered User
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.
Sep 30, 2011, 11:16 AM
Registered User

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 01:02 PM.


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