Estes B4-4 Model Rocket Motor Engines (3 in a Pack) - ES1602
Estes B4-4 Model Rocket Motor Engines (3 in a Pack)
The Estes B4-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 3.5 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.
Total Impulse - 5.00 N-sec
Time Delay – 4 Seconds
Estimated Max Lift Weight - 3.5oz (99g)
Max Thrust - 13.20 Newtons (3.0lbs)
Thrust Duration – 1.10 Seconds
Initial Weight - 0.68oz (19.2g)
Propellant Weight - 0.27oz (7.6g)
In the Pack
3 B4-4 Engines
4 Starter Igniters
4 Igniter Plugs
Note: Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12.