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The EP Katana SR is a great looking machine specially designed for precision 3D manoeuvre. Its oversized control areas ensure that you will get all the control authority you could possibly want. The Katana SR comes pre-installed with motor, ESC, servos and pushrods for quick building. Featuring an eye-catching color scheme surely to draw attention and help greatly with orientation! Built-in •Motor Size:4250~710Kv Brushless Outrunner (installed) •Servos:5 Standard (installed) •Prop Size:13 x 4~7 (installed) •Speed Control :50A ESC (installed) Features: Neat and simple design to give weightlessness and ultra fast building! Oversized rudder makes sure that you will get all the control authority you could possibly want. Two standard servos for elevator to deliver accurate control. Enlarged ailerons for responsive control and aggressive 3D manoeuvre. An easily accessed and neat compartment for the battery to help ultra fast installation. Its simple and lightweight construction is good for electric flight and delivers maximum 3D performance. Specifications: Wingspan 1500mm Length 1390mm Weight 2~2.1 kg Wing Loading 40~42g dm/2 Airfoil Symmetric Wing Area 49.7 dm/2