Single use model rocket motors sized 18 mm designed to provide reliable lift for lightweight rockets and hobby flying activities. Each pack contains three B4-2 motors along with igniters and plugs for ready to launch setups. These motors deliver a moderate total impulse with a built-in delay for predictable ejection timing and consistent flight performance, making them well suited for standard class rockets with a maximum lift weight around four ounces. They are National Association of Rocketry certified and ideal for educational use and backyard launches when safety guidelines are followed.
• includes three single stage rocket motors per pack with necessary igniters and plugs • B-class total impulse tailored for lightweight rockets up to about four ounces • 18 mm standard diameter fits most common model rocket kits • built-in delay supports controlled recovery deployment • delivers smooth and predictable thrust for consistent flight profiles • certified for use by the National Association of Rocketry • suitable for classroom, club, or recreational model rocket launches