The Estes A8-3 engine is a single-stage model rocket motor designed for use in rockets weighing less than three ounces (including the motor).

Each package includes three motors with starters (igniters), and starter plugs.

• Diameter: 18.0000 mm
• Length: 70.0000 mm
• Propellant Weight: 3.3000 g
• Total Weight: 16.3500 g
• Average Thrust: 3.1780 N
• Peak Thrust: 9.7300 N
• Total Impulse: 2.3200 Ns
• Class: 86% A

Note: We are required to ship orders containing motors by surface mail. So, please plan on your order possibly taking a few days longer than normal to arrive if it contains motors.

Model rocket motors cannot be shipped outside the US.