EST1602: B4-4 Engines/3pk

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.

Features:

• Model Rocket Engines
• Maximum no fire current: 500mA
• Minimum: 2A 

Specification:

• Length: 2.8 in. (7 cm)
• Diameter: 18 mm
• Estimated Weight: .68 oz. (19.3 g)
• Total Impulse: 5.00 N-sec
• Time Delay: 4 Seconds
• Estimated Max Lift Weight: 3.5 oz (99 g)
• Max Thrust: 13.20 Newtons (3.0 lbs)
• Thrust Duration: 1.10 Seconds
• Initial Weight: 0.68 oz (19.2 g)
• Propellant Weight: 0.27 oz (7.6 g)
• Quantity Per Pack: 3

Includes:

• (3) B4-4 Engines
• (4) Starters
• (4) Starter Plugs