Pay in 4 interest-free payments of $3.50 Learn more
Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
Explore Single Stage and Two Stage Flight
The kit comes with parachutes
999 ft (0 to 3
Students can construct these rockets without any cutting or adhesives
B4-4 Engines JustRight Explore Single Stage and TwoThe Estes B4 4 Engine is an excellent educational tool for classrooms, science clubs, and STEM enrichment programs. This 18 mm, single stage engine is ideal for student built model rockets weighing less than 3. 5 ounces, offering a reliable and predictable flight experience that supports hands on learning in physics, engineering, and aerospace topics. Its moderate thrust and 4 second delay give students time to observe key phases of flight, from
US$ 27.67
US$ 44.26
US$ 22.84
US$ 81.58
US$ 80.94
US$ 38.73