Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old May 30, 2006, 05:44 PM
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cranium accessories
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SSDC: Sloop (circle abuse)


Well, here we go again, but this time its a 24" flying ring. What can I say, I like 'em ROUND.

A few points that have crossed my mind:

a. Balance, both fore/aft and top/bottom... Bias towards bottom how much?
b. Winglets. Like having 4 fuselages
c. Airfoil. NACA00XX for all surfaces?
d. Rotational inertia may cause sluggish roll response, but thanks to the magic of modern computer radios, all four surfaces will deflect for roll.
e. Very obvious color scheme...


The quarter winglets will hold the servos, one each, the bottom winglet will hold the battery and reciever OR just the battery, depending on how much bottom weight bias we all think is necessary. If the reciever has to go in the top winglet then so be it... Theres going to be a wires running all over the place anyway.

Ok friends, let it fly!

(your thoughts and comments that is)

-dustn
Last edited by dustn; Aug 07, 2006 at 05:46 PM.
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Old May 30, 2006, 05:52 PM
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"You're an odd boy!"




T
Old May 30, 2006, 05:52 PM
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blah...
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What the???

Uhhhhhhhhhhhhhh.......


If you can make that fly......

I don't know what to say..

-Don
Old May 30, 2006, 05:53 PM
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blah...
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finding the CG is going to be interesting to say the least!!!!
Old May 30, 2006, 05:56 PM
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this space for rent
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You may actually have something there. There was something in the 60's called the "ring-airfoil-grenade" that supposedly had range way beyond the normal M-79 launched grenades, and it worked by having the CG at such a point that the RAG didnt drop its nose, but "flew" with the nose slightly up. Exactly HOW this thing will work, I have no idea, but google the grenade concept and see if you can snag an idea or two.

Hey, when you think about it theres no need to bank into corners, just turn.
Old May 30, 2006, 06:18 PM
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Kinda similar to the Voltaire Cube of a few years ago. If you get that thing to fly on the slope it would be so cool. If you get it to fly fast and controllable...it would be epic. If it's durable, look out.

I have to give you props on just coming up with such an innovative, pleasing design.

Graham,
Screw Wings...I wanna Combat Tube
Old May 30, 2006, 06:39 PM
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Where's the wind?
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Your thinking outside the box but still in a sphere.
Old May 30, 2006, 07:11 PM
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Throw Caution to the Wind
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Quote:
Originally Posted by NewbieX
Screw Wings...I wanna Combat Tube
I'm at work and no customers. Good thing, because I just ruptured my spleen laughing.

Odd plane! I wanna see it fly!
Old May 30, 2006, 07:22 PM
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Every flying ring I've built and flown (out of paper, plastic, pop cans, rubber..
etc), or seen fly, needed to spin to maintain stability, but if spinning they fly
quite well.

I recall a discussion of a more conventionally controlled ring wing
aircraft in Popular Mechanics a few years back which looked like this

but I've never seen anything come of it.

ian
Old May 30, 2006, 07:30 PM
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Have made paper airplanes in that shape only longer fuse section. Took a piece of paper and folded it upon itslef along one edge to give the front some weight, and then rolled it into t cylinder and it flew well as I recall. Cant remember how many folds it was but you might be able to exp with paper to get a rough CG anyway and then go full scale. Good Luck free thinker...
Old May 30, 2006, 07:38 PM
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Quote:
Originally Posted by Daemon
Every flying ring I've built and flown (out of paper, plastic, pop cans, rubber..
etc), or seen fly, needed to spin to maintain stability, but if spinning they fly
quite well.

I recall a discussion of a more conventionally controlled ring wing
aircraft in Popular Mechanics a few years back which looked like this

but I've never seen anything come of it.

ian

I made a paper airplane years ago, that was two hoops at each end of a boom, the forward one smaller, the aft bigger (1:2?), and that thing flew great. Boom bonded with the circular bands aligned.

T
Old May 30, 2006, 07:40 PM
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Fun ain't cheap!
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Yeah baby,
I had a Wham-o Turbo Tube in 1967. Those things would go 100 yards. If you threw them hard enuff at close range, you could break fingers and/or skin with them. Great for playing chicken with your younger brother. (Sorry Bro' about your hand, I still feel bad about telling Mom you stuck your finger in a bike wheel.....)

Droydx
Old May 30, 2006, 07:44 PM
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http://flyingproducts.com/xzyloultra/index.htm

These things are AMAZING! I threw one once and it just kept going and going and going and going, all the way up on a roof top, my friend was pissed!
Old May 30, 2006, 08:05 PM
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Goodpasture's FTW
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I made a ringed paper airplane once. It flew great until the teacher saw it fly across the room

Keith
Old May 30, 2006, 08:22 PM
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Quote:
Originally Posted by target
I made a paper airplane years ago, that was two hoops at each end of a boom, the forward one smaller, the aft bigger (1:2?), and that thing flew great. Boom bonded with the circular bands aligned.
T
Yes, I made one of those too, but it required both hoops to fly
stable without rotating. All of the other rings people are talking about,
spin.

BTW the cheapest, easiest flying ring, is just a soda can cut in
half, and then the top cut out inside the pinch seam at the top.
File away, or just squish the edges so they're smooth around
the seam, and throw it side-arm with some spin.

ian


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