B4-4 Engines (EST1602)
Standard 18mm Engines for Model Rockets
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001602 - B4-4 Engines Description
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
- 3 starters
- 4 plugs
Technical Specs
- Length: 2.8 in. (7 cm)
- Diameter: .7 in. (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