The P-40 red box was the second plane i built. Y ou have to do alot of figuring out. The insructions are way breif. Before my buddy crashed it i used the bell crank system. It worked but had slop in the controls. When i built a new wing i put four servos in the wing. Much better control. I put an OS 61 FX in it. Great power. If you do build one trace the wing ribs for future use. I had to buy another kit to get a new wing. Good luck. If you have any questions on building it E-Mail me. Mike