Estes Yankee Flying Model Rocket Kit, Intermediate Skill Level (1381)Skill level 1 Laser cut wood fins, self stick decals, streamer recovery Recommended engines: A6 2 (First Flight), A8 3, A8 5, B4 4, B6 4, C6 5 or C6 7 This Estes rocket is a Yankee doodle dandy! The patriotic Yankee is a super performance model with a one of a kind shaped nose cone. The aerodynamic nose cone and powerful Estes engines give this patriot the extra push it needs to fly 1,850 feet into the atmosphere returning safely with a neon orange