Thanks for the info. What does Expo mean?I'm sorry, I'm an old timer trying to be a newbie. Many like that Super Cub and I do to but I thought if I had a smaller wingspan I could fly in a smaller yard space. I fly a CX2 Blade heli and working with a CP Pro Blade heli.I fly Air Hogs in my yard and whant to step up.I bought the Slick and the 55 yak 3D from Great Planes but was told I should do a trainer first. With 3D I could finally fly in my yard or for that mater my bath room! Thanks Ron