i just bought the greatplanes spacewalker and on the front of the box it says it is IMAA legal. what does this mean?

IMAA is a national organization for folks with an interest in large RC aircraft Both scale types and non-scale. They have non competitive fly-in events scattered around the country just for large aiicraft. What that means on your kit box is this airplane is large enough to participate. I think the minimum size for a monoplane is 80" and a biplane 60" span.

IIRC, it can also be 1/4 true scale from an actual plane, which will allow a couple monoplanes under the 80" span.

thanks guys...[8D]