hi I am geting a cox 8212 trainer plane and I was woundering if anyoe know how long the runway needs to be ?
[img]i/expressions/face-icon-small-confused.gif[/img][img]i/expressions/face-icon-small-blush.gif[/img]
the plane is a electric Cox electra J3 cub R/C airplane- Cox 8212
it is 26'' long wing spand of 32''
go here for more info.,

http://www.ehobbys.com/rc-cox-8212.html

Also here is a link to my site type it in the adress bar or cut and paste,

http://nuclear_fusion52.tripod.com
have fun and enjoy!

It can take off from as little as 20 ft of paved runway. 100 ft is adviseable though...

You need at least 300 ft clear off each end of the runway and 150 ft clear on the opposite side of where you are standing in order to not have to maneuver around trees and such all the time.

If this is your first plane, yo should at least get an experienced modeler to test-fly and trim the controls so it will be easier to learn.

ok does it need to be asfalt concreate or what

Longest and smoothes possible. that is either asphalt or concrete. Golf green quality grass is also ideal. The main thing is that the plane can easily roll ont he surface. Obvioulsy the farmer's feild, although harvested, will not be smooth / flat enough. A typical lawn might be / is for the larger planes..

As for yours, you want eh smoothes and flatest as possible, because of eh plane's size. Whell can get hung-up pretty fast in long-ish grass.

And just because we say asphalt or concrete, that dosen't directly mean that the street outside your house is suitable.. far from it! ditto with school yards and shopping centers!!

Head out to the local feild, and see what they are flying from..

I've never seen one of those Cox planes make a successful take-off from grass...

You can hand launch it though if you don't have a paved runway available. It flys slowly enough, even though its a bit underpowered for some people's taste. (gotta fly on the wing.. can't just guide the engine around)

The plane can be rough trimmed by holding it up in a breeze appropriate for a kite, and gently tossing, and catching it. (you can probably walk fast enough to keep up) Early todsses, catch it QUICK, and adjust the trim to counter whatever direction it wanted to go. When you can toss it and let it glide forward, landing itself... its trimmed.

ok thank you but if I use concreet is ther a certan thikness it needs to be? or how wide it needs to be?

Bomber, You need a runway wide enough to let you correct for prop torque, with no poles or trees along the sides, in case you cannot correct enough for torque. Keep it in the middle as long as you can, and go straight off the end if you can.
Thickness? I don't think you could find a concrete "runway" too thin for a <55 lb model airplane[img]i/expressions/face-icon-small-confused.gif[/img]