Estes 1/2A3-2T Engines EST10011

Explore the Estes 1/2A3-2T Engines at MegaHobby. This model rocket engine pack is selected by its complete engine designation, not simply by the letter class.

Product features and specifications

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

Select the exact recommended engine

Match the full engine code, physical size and application to the rocket manufacturer’s instructions. Different delays and booster designations are not interchangeable choices. Check the listed pack contents before ordering and confirm which launch supplies are already included.

Explore Estes at MegaHobby

Browse Estes rockets and supplies and Estes Model Rocket Engines. Explore the wider Model Rocketry collection, then find building tools and finishing materials in the Paint Store.