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Old Nov 24, 2006, 09:02 AM
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Flying Coke Can

I built this awhile back and have been hiding it.

I call it the Flying Coke Can but it could be wrapped with any logo.

It uses a CC10 speed control and two servos for control.

The interesting thing is that the entire thing spins while in flight with no real visible means of how it's being controlled. Yet it is very easy to fly.

I will take off and land vertically, although the landings can be tough because it spins faster as you bring it to a hover, which does makes it more stable.

With a third servo the spin rate can be controlled.

Currently it has a multiple of LED's on it that make for some interesting UFO sightings when flying at night

Here is a quick video of it flying at night > Flying Coke Can At Night <




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Last edited by UAVPilot; Nov 24, 2006 at 09:35 AM. Reason: typo
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Old Nov 24, 2006, 05:48 PM
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Thats cool , ever thought about putting another motor in the other end with a counter directional running prop to the mains(props set inside the can so can land either way),you could get some interesting flying results with that and correct the spinning at the same time
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Old Nov 24, 2006, 07:20 PM
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Quote:
Originally Posted by whatyagointado
Thats cool , ever thought about putting another motor in the other end with a counter directional running prop to the mains(props set inside the can so can land either way),you could get some interesting flying results with that and correct the spinning at the same time
But the spinning is the cool part that makes it a mystery on how it's being controlled
Plus the spinning can be controlled with a third servo, and the faster it spins, the more stable it becomes, Thats what makes it easy to fly.
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Old Nov 24, 2006, 07:24 PM
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DUH!(me) sounds like you have the spinning working for you, nice.It does certainly look like a ufo at night, i,m wondering if that explains half of the ones i have seen.
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Old Nov 24, 2006, 08:26 PM
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And who is this alien?
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Old Nov 24, 2006, 09:36 PM
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Quote:
Originally Posted by jamin
And who is this alien?
He He; That would be Michael Connally himself at the controls of the Coke can, with me standing beside, faking the smile with the fear of my creation getting destroyed, But he landed it OK and said "it is easy to fly"
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Old Nov 24, 2006, 11:42 PM
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OK, I have to build one of these

This is waaaaaay cool!

Details on the innards?????

Larry
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Old Nov 25, 2006, 05:57 PM
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how is this thing controlled?
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Old Nov 25, 2006, 08:16 PM
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Good question!

With 2 servos they must be controlling some sort of vanes or something like elevons perhaps.

Pitch controll is probably a function of throttle I would guess. If it's "tail heavy" that would work fine.

Im still at a loss trying to imagine how directional/yaw controll is maintained with that thing spinning like that.

I can see the vanes/elevons changing the roll rate and introducing a wobble in the roll, but dont see how that would translate to any kind of "controll"

OK, Ernest. This proves you are a genious once again!

Share?????

Please?????

I really want to wow the guys at our next indoor meet

Larry
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Old Nov 29, 2006, 11:46 PM
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Larry I think any sort of "vanes" would only work with a really good gyro or two... but even still the gyro would be attached to the body and spinning as well...???

This one has been bugging me for days now....when I was a kid I had a Cox FF helicopter that had the 020 mounted on the main rotor hub - flew okay but not controllable cause the whole body spun. I'm just getting into Heli's and understand swashplates etc but this thing looks really simple....???

I always wanted to try a prop inside a shroud with the motor torque spinning the outer body - like an AvroCar - but spinning in the opposite direction, perhaps for gyrocopic stability. FF might be fine but controllable

Maybe its dead simple like a pendulum on a gimbal...of course he only gives us a simple side pic and a night video Bugger


This is like a reverse engineering "Who Dunnit" only more diabolical...
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Old Nov 30, 2006, 12:08 AM
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I know! Its driveing me nuts too. I'm sure its something simple. Has to be or it would be too heavy and need more servos.

Its not fair either - we've already acknowledged that he is the ultimate master, genius, guru, go to guy and THE MAN as far as nifty neeto new designs.

Come on UAVPilot - fess up!!!

Larry
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Old Nov 30, 2006, 12:42 AM
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We're not worthy.....does that help???
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Old Nov 30, 2006, 09:03 AM
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OK, one hint................



2 receivers




Does that help?
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Old Nov 30, 2006, 10:37 AM
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I know, I know but I won't tell!!

ed
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Old Nov 30, 2006, 11:01 AM
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I remember having seen that picture quite some time back... Does the control portion sit stationary inside and the ring and motor spin around it?

I just finished building a r/c flying ring myself, but it doesn't spin and doesn't have a motor.
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