ESTES 1566 D12-3 Model Rocket Engine 2 Pack (Ships USPS Ground Only) Chesapeake & Ohio High Output version of 7440

High Output version of 7440 (2

AXI03000T2

and etching

efficiency and reliability

Compatible with steel alloy and nickel silver E-Z Track® (3 1/8" vertical clearance)

ESTES 1566 D12-3 Model Rocket Engine 2 Pack (Ships USPS Ground Only) Chesapeake & Ohio High Output version of 7440ESTES 1566 D12 3 Model Rocket Engine 2 Pack Ships USPS Ground Only The Estes D12 3 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 14 ounces. Each package includes 2 engines, 2 starters and 4 starter plugs. SPECIFICATIONS: Length: 2. 75 in. (7 cm) Diameter: 24 mm Estimated Weight: 1. 57 oz. (44. 5 g) Total Impulse: 20. 00 N sec Time