Estes Rocket 1/2A3-2T Engines 10011

The Estes 1/2A3‑2T is a single-stage 13 mm mini engine for lightweight model rockets. With 1.25 N‑s impulse, 8.3 N peak thrust, and a 2‑second delay, it delivers quick and reliable launches. Packs include 4 engines, 4 igniters, and 4 plugs.

Ideal for small rockets like Mini Alpha™, Mini Bertha™, and Mini Honest John™, it’s perfect for educational, hobbyist, and backyard flying.

Includes:

• 4 1/2A3-2T Engines
• 4 Starters
• 4 Starter Plugs