This isn't your Grandpa's control-line profile airplane! The SIG Primary FORCE was specifically designed to compete in the new P40 stunt event..and win! The flight characteristics of this beautiful control-line stunt model are nothing less than amazing. The Primary FORCE can fly the entire AMA stunt pattern with a level of smoothness and cornering ability that has up to now only been associated with flap-equipped stunt ships.

The Primary FORCE is loaded with the latest "flapless" design technology, including a longer tail moment, reduced tail volume, special airfoil, revised CG location and a 4-inch reverse bellcrank. Pro-stunt features such as adjustable leadouts and a built-in tip weight box allow you to dial in perfect contest winning flight trim. All of this in a beautifully built ARF!

Hand-built using the finest laser-cut balsa and plywood, the entire light weight airframe is expertly covered in SIG AeroKote.. The fully illustrated, step-by-step Assembly Manual takes you quickly and efficiently through each assembly phase, getting you from bench to field in a minimum of time. Typically SIG, the Primary FORCE ARF includes all required hardware, right down to the light weight wheels and beautiful retro-styled wheel pants.