Estes Rocket Motors - A8-5 (Pack3)

Stock up for launches with this bulk pack of 72 Estes A8-5 model rocket motors (part D-ES1599). The A8-5 is designed primarily as an upper-stage engine and can also be used as a single-stage engine in rockets weighing less than 5 ounces, including the engine. With an 18 mm diameter and a 5-second delay, it delivers predictable performance for small model rocket projects.

Key Features

• Designed as an upper-stage engine for model rockets
• Also suitable for single-stage rockets under 5 oz (including the engine)
• 18 mm diameter with a 5-second delay

Specifications

• Length: 2.8 in (7 cm)
• Diameter: 18 mm
• Estimated Weight: 0.55 oz (15.6 g)
• Total Impulse: 2.50 N-sec
• Time Delay: 5 seconds
• Estimated Max Lift Weight: 2.0 oz (57 g)
• Max Thrust: 13.30 N (3.0 lbs)
• Thrust Duration: 0.50 seconds
• Propellant Weight: 0.14 oz (4.1 g)