Aircraft size
That depends on you pretty much . If you are just starting out a 60 size Extra or Cap Etc will do just fine . It will get you accustomed to the sequences and Imac in general. The bigger the plane the better things get . It will be easer to fly and judge but along with the size comes the price. Bigger costs more. I have seen 60 size all the way to 1/3 scale aircraft being used by basic pilots. I personally started with a 33% Edge540T in Sportsman and I am still flying it in Imac . I am moving up to a 40% RadioCraft Extra 330LX . It just depends on you basically