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, 4 starters and 4 plugs.
| ADDITIONAL INFORMATION | |
|---|---|
| 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 |
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