The Estes B6-4 engine is a versatile and dependable choice for launching standard-size model rockets. Designed for rockets weighing less than 4.0 ounces, it provides a solid boost with a 4-second delay for smooth parachute deployment.
Ideal for beginner to intermediate rocketeers, the B6-4 delivers a balanced combination of altitude and recovery timing—perfect for educational launches, club events, or weekend flights.
Includes:
- 3 B6-4 Engines
- 4 Starters
- 4 Starter Plugs
PLEASE NOTE:You must have a physical address for delivery.
Technical Specifications
Total Impulse 5.00 N-sec
Time Delay 4 Seconds
Max Lift Weight 4.0 oz (113 g)
Max Thrust 12.10 Newtons (2.7 lbs)
Thrust Duration 0.80 Seconds
Length 2.8 in. (7 cm)
Diameter 18 mm
Weight .63 oz. (17.9 g)
Propellant Weight 0.23 oz (6.5 g)
Please Note: Photos may not be of the same packaging, but nothing will be sold older than what is received from our distributor.
This item will ship by US Postal Service only from ModelRocketGuy.com at this time.
