Estes 1692 E12-4 Model Rocket Engines – 3 Engines with Starters & Plugs

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PLEASE NOTE: These are large (24mm diameter) engines that will only fit certain model rockets. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Estes E12-4 engine pack - includes 3 engines, 4 starters, and 4 starter plugs The E12-4 is an upper stage engine designed for model rocket flight. This engine can also be used as a single stage engine. Maximum lift weight is 17 ounces. Recommended for use with the Mars Longship, Saturn 1B, Majestic, Mean Machine, or other compatible rocket kits Technical SpecificationsTotal Impulse: 30.00 N-secTime Delay: 4 SecondsMax Lift Weight: 17.0 oz (482 g)Max Thrust: 30.60 Newtons (6.9 lbs)Thrust Duration: 2.70 SecondsLength: 3.8 in. (9.7 cm)Diameter: 24 mmWeight: 2.16 oz. (61.2 g)Propellant Weight: 1.3 oz (36.9 g)Please verify that these engines are compatible with your model rocket before purchasing. This product is warranted by Estes against defects in materials or workmanship from one year of the original purchase. Please retain the warranty information included in the package so that you may reference it in the event that you receive a defective or malfunctioning product as the engines are not returnable by mail. Show more