RE: Great Planes Reactor GP/EP 3D ARF .46-.70
LIflyer, the .82 will pull it well; I was most happy with a 15x4w. It's not gonna throw it around like a rag doll, but should be all right. I am at 5000'; pullout wasn't ballistic, but pretty good. The Saito .91 or 1.00 might do a touch better; as mentioned, you'll need to do some mods to get the battery in the tail section. I had a 1400mah Nimh near the rear of the fuse cavity, and it was right in middle of recommended CG, so to move it back for even better 3D, battery would need to go back some more. This plane flies and lands like a feather. The long tail moment probably keeps it from the more extreme 3D stuff (i.e. tight waterfalls), but it flies very nicely. I really liked the plane.