Estes U.S. Army Patriot M-104 Flying Model Rocket Kit, Intermediate Skill Level (002056)Scale Model of the US Armys M 104 surface air missile SKILL LEVEL: The U. S. Army Patriot M 104 is an Intermediate level rocket which will help a budding rocketeer develop some basic model building and finishing skills. RECOMMENDED ENGINES: B4 4, B6 4, B6 6, C6 5 PROJECTED ALTITUDE: 600 ft. (183 m) on a C6 5 What a classic! Thats what youll get with the Estes U. S. Army Patriot M 104 rocket. This 1: 10 scale model rocket of the desert hero and mother