Estes 10019 Rocket Engines B4-4 (3) Bagged 1/18 2016 saw the addition to

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Estes 10019 Rocket Engines B4-4 (3) Bagged 1/18 2016 saw the addition toThe 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