Estes B6-4 Model Rocket Engine Bulk Pack - Includes 24 Engines with Starters, Plugs, and Recovery Wadding (1783)

PLEASE NOTE: These are 18mm diameter engines. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Estes B6-4 bulk pack - includes 24 engines, 30 starters, 24 starter plugs, and ~75 squares of recovery wadding The B6-4 is a single stage engine that delivers high altitude flights Recommended for use with the Generic E2X, Alpha, Alpha III, Wizard, Viking, or other compatible rocket kits This item will ship by US Postal Service only. Technical Specifications: Total Impulse: 5.00 N-sec Time Delay: 4 Seconds Max Lift Weight: 4.0 oz (113 g) Max Thrust: 12.10 Newtons (2.7 lbs) Thrust Duration: 0.80 Seconds Length: 2.8 in. (7 cm) Diameter: 18 mm Weight: .63 oz. (17.9 g) Propellant Weight: 0.23 oz (6.5 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.