Skill Level 2 A high - flying "Fun - Scale" model of this historic rocket! Designed to fly on D & E motors, it’s still light enough to fly on selected 18mm motors with an 18mm engine adapter (not included). The real Wac Corporal was the United States first sounding rocket. Seventeen Wac and Wac B rockets were flown from 1945 to 1947. The Wac was launched with the aid of the Tiny Tim solid propellant booster. After the booster burned out, it fell away and the liquid fuel propelled sustainer stage continued its' upward flight. Kit comes with high quality components and well written instructions. Made in the USA | 
