A long time ago, in a galaxy far, far away

[Brianathayes]

In a time when Artf€™ was the first name of a little Scots pickpocket, and 3D meant wearing red and green glasses, I used to fly control-line aerobatic.
Of late, I€™ve been feeling that I€™d like to try it again, but I€™ve been put off by the fear of getting dizzy, and writing off the model, because I had no way of stopping the engine.

So. How to fly, and stop when the head starts to spin? The answer €“ as it is so often €“ LECCY!! Use a Tx to control motor speed, and land whenever necessary!
The result is this . . . . .

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Mostly 6mm Depron with carbon rods, although the fuselage is based on a spruce crutch for rigidity.

Another posting when it has (hopefully!) flown.

Brian

[David]

Having done "Indoor Round the pole" with scaletrix controllers and remembering some great fun with combat, spot landings and even carrier landings, I often wondered why we never tried a giant outdoor version. Easy to tether and using the aircrafts own power and 2 channel RC for control?

I assume someone must have tried this! Or is this exactly what your doing Brian?

[Richard]

The rudder looks a bit out of line

Having throttle control is going to make it interesting, I take it that the elevator is controlled as normal by the wire?

Just make sure there no overhead lights when you go for those knife edge half loops

[Brianathayes]

Yes, the power train is all on board, the 2215 motor produces about 80 watts, has a 10 amp esc and an on-board 3-cell battery. Prop is APC slow-fly 9x4.7. All-up weight 11oz. It may look like a high watts/lb ratio, but you also have to move the weight of the control lines.
Only the ESC is connected to the RX, elevator and contra-moving flaps are controlled by me! It IS tethered, of course, David, but only to the handle. Lines are 30' long.


Various old c/l tricks used to maintain line tension:-
1. Right thrust
2. Offset rudder
3. Forward C/G
4. Weight on r/h wing
5. Running backwards quickly!

The whole thing is by way of an experiment - I hope to build a larger, properly designed F2B style model, with a lot more power. I've tried to get the general shape and feel into this foamie.

Richard, it's too fast and heavy for indoor, so the ceiling lights are safe.

Brian

[steve honour]

Wow thats fantastic brian, cant wait to see this in its environment

[Alan H]

It's a long long time since I flew C/L, I'm sure I would get dizzy. You can see some electric C/L (flown indoors) here http://www.youtube.com/watch?v=HK84Jr8oc5Y
Just watching the view from the plane makes me feel dizzy!

[Tony Smith]

Quote:Originally posted by Richard Archdeacon

The rudder looks a bit out of line

Having throttle control is going to make it interesting, I take it that the elevator is controlled as normal by the wire?

Just make sure there no overhead lights when you go for those knife edge half loops

Apparently.. the light is still swinging........
And is subject to many Students studying perpetual motion...

[steve honour]

Did you mean NCG 3314

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its only 117 million miles away lol