Ducted jet and muli-engine planes are way different than anything with one screw up front, jets need airspeed to keep aloft and multiple engine aircraft need rudder and alerion cooridination to fly nicely, and if an engine goes out on either, you have to be very quick to rectify the situation. Just a heads up, but the US .40/.60 from GP is excellent and the GP mustang is very nice taildagger warbird too, (the wing is based on the US 40 wing) Just to let ya know.