Is it just speed that makes a glow plane harder to fly? And when do I know when I am ready to go from sim to the real thing. THis is where I am at. I started on the sim could not keep in the air very long, after sevral hours could fly plane around but not really make it go where I wanted it to. Now I can take off, fly where I want to fly, loops inverted flying and I can land pretty much everytime, can even fly the jets. So is it night and day from the sim to going out and flying, So if I stick with glow engin planes could I go out with the p-51 and fly I know what all the controls do, I can start and tune my plane, read trew the entire eclipse 7 maual and set everything from sub trims to end points to dual rates and I set a mix to apply a little rudder with the alirons. The P-51 is a .40 size plane sould I stick with the os L.A. 40 or I have a .58 wich is in it now, will the bigger engin help with flight.