:-))))

more on

https://picasaweb.google.com/110641560968355677082/StretnutiePriaznivcovUputanehoLetu2012OficialnaCast

If I remember well, then 2 models had gyro, but now we use newer system with accelerometer (in 3 models) ... you can see it is in action on that older video from the same gym:

Yes, those parts supporting landig gears and also top of wing are designed as part of flying area, so it is triplane to some extent. I did not inted to play with flaps because of several reasons:

1/ they are not necessary, you can have so much area as you want, flaps are necessary outside to limit wind and turbullence influence, but indoor we have always calm ... but the result is jumping model if someone open doors  however we can manage them closed 

2/ low RE number dictates flat airfoil which is resistent to low Re numbers, but flat airfoil does not like flaps, for LE separation is enought deflected flap also at 0 AoA, so it does not make sense

3/ flaps need enoug line tension, but those models at so low speed has so low line tension, that they cannot handle flaps

those brakers help in descending legs of square figures, flat wing does not have enough drag and such a model without them falls like a rock, those brakers are visible advantage

side force gerataors (also landing gears are part of them) and also well desighed side area of fuselage is also very important, becaus unlike outdoor models on long lines, it is the only tool which can keep positive line tension overhead - if you do the math, you will see that centrifugal force at 5s/lap on 15ft lines is far less than gravity

I recommend to do such model on so short lines it is eye opening thing - you will immediatelly see all issues of tethered flight like pforce, precession yeawed flight etc 

I use small boards connected to one small PIC, the harware is not big problem, the heart is in software, little bit black magic :-)))) ... but you can see it already works after 4 years development :- ))))))))))) ... still not perfect, but works

xexe ... kidding, but you can see 13 airplanes there, so now it was little bit different than 3 years ago, when all wanted to fly my model 

and next weekend is another contest in gym near Hradec Kralove (2 gyms = 4 circles) ... I told you ... come and you can borrow model, no problem ... so far they have registered 30 flyers :- )))))

Igor
I was give an R/C 3D foam plane at the AMA convention to build and convert to Control Line electric.  The plane is just about finished, just need to add a power system at controls.  They claim 10 ounces when complete for R/C, but they don't make any recommendations for motor or ESC.  I would think something in the 70-100 watts would be enough, but any help you could offer would be greatly appreciated.
Andy

Great Igor, thanks for the help.
Andy

Hi Igor,
Congrats on your win.....again! That looks like such good fun, so well done to all of you guys on organizing this. It can only be good for C/L. Thanks for the link to all of the photos as well. Looks like everybody is enjoying themselves.

Were you all flying on 5 metre lines? Some look longer but that it most likely just the perspective from the camera. Was anybody using thread lines or were they all thin steel?

Keith R

: ))))))))))))))))))))))))))))))))))))))))))))))))))) Yes yes, that me ;P : ) i sucssefully crashed the model about 4 times / somehow my brain can not send to my hand right signal - made loop and wingover normally / but i had support team : )))) and they fix it quickly / especially that one Pavel Dzyba with two couple glasses / :PP : )
And Keith, honestly : ))) I was on last place in the contest of beginers, but thankfully to Pavel Macek, i got some pricess : ))) Which i accept like huge present for me ; ) and made me happy : )))))
Thanks also to Igor, about patience to resist on all my crashes : ))))))) the final rezult : )))) 1 wingover - perfect, loop - good, low fly - also good, horizontal fly - perfect, 45 degreese - verry well, take off - perfect, and landing - at least crashes ; ))))) PERFECT :PPP : )))))))))))))))))))))))))

Attila did a video from my last contest flight 

greate video and nice fly Igor : )) hehehe : )))))
 

Tania, I hope next year you fly F2b class :- ))))

:- ))))) ... you had better show the last flight in day, not the first, so we could see some wingovers and loops :- )))))

... but I forgive you that you tried to terrorize me by that low flight  ... next time I will jump instead of lay on floor

hihihi  ; ) i can hear him from evrywhere : ) simple just ignore the other voices and sounds : ) mmmm in real was not like that, that noise comes also from the camera and bad quality : )))))))and yes : ))) you're definatly not the only one who feel fun and joy )))))))))))))))))))))))))))))))))))))))))))))