I've heard the same thing. I have seen models made of Corflute but they tend to be heavy and as a result, need to be flown fast. If you're a beginner, you'll be disapointed. See if you can find plans for something with a very large wing area, relative to the fuselage. The "Lazy Bee" or the "Mud Duck" are two designs that are real "floaters" that could be built of Corflute and would fly well (and slowly) at higher weights. A Corflute wing would be stiff enough (with strut-bracing) to be built as a 'single-surface' and that will really fly slowly. Another resource for plans is Flite Test | RC Planes, Quadcopters, Videos, Articles & More They also have great advice for beginners. Their planes are made from "Dollar Tree foam" which is like foamboard here, except that the paper can be easily removed. Unfortunately, DTF isn't avaliable in Australia but their plans could be built in Corflute, subject to the caveats I mentioned. They do sell kits which aren't prohibitively expensive.