B4-4 Engines JustRight consistency

consistency

Students can construct these rockets without any cutting or adhesives

The kit comes with parachutes

The standard 18 mm diameter makes the A8-5 compatible with many Estes kits used in education

Outfitted with dual nylon parachutes—an 18-inch chute for the upper stage and a 15-inch chute for the booster—the Vogel is designed for smooth recovery and multiple flight opportunities

B4-4 Engines JustRight consistencyThe Estes B4 4 Engine is an excellent educational tool for classrooms, science clubs, and STEM enrichment programs. This 18 mm, single stage engine is ideal for student built model rockets weighing less than 3. 5 ounces, offering a reliable and predictable flight experience that supports hands on learning in physics, engineering, and aerospace topics. Its moderate thrust and 4 second delay give students time to observe key phases of flight, from