Estes D12-7

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ENGINES FOR MODEL ROCKETS 2 - D12-7 Engines 2 - Starters 4 - Starter Plugs DESCRIPTION The Estes D12-7 engine is a single stage engine designed for model rocket flight. This engine is a 24mm diameter engine designed for rockets with a maximum lift weight of less than 8 ounces. Each package includes 2 engines, 2 starters and 4 starter plugs. ADDITIONAL INFORMATION Length 2.75 in. (7 cm) Diameter .95 in. (24.1 mm) Estimated Weight 1.62 oz. (45.9 g) Total Impulse 20.00 N-sec Time Delay 7 Seconds Estimated Max Lift Weight 8.0 oz (226 g) Max Thrust 32.90 Newtons (7.4 lbs) Thrust Duration 1.60 Seconds Initial Weight 1.62 oz (46.0 g) Propellant Weight 0.85 oz (24.2 g) Quantity Per Pack 2 Show more