Hi ya Guys, It's Hangar 9's .40 size Twist 3D. Box stock except for the engine. No beefing up anywhere. Ignition and ignition battery in the fuel tank compartment. Fuel tank in the receiver compartment. Receiver and receiver battery under the casnopy. No lead anywhere and it balanced. The thick airfoil makes it handle the little added weight. Radar gun sez 81 mph flat out. With throttle management it can descend to land VERY slowly. Near vertical descent, with slight forward motion. I took off the stock design trim. Looked to toylike. Black sunburst on top with yellow checks on the bottom. Very rugged, has held up well for 3 seasons and ready to roll next season.