The Estes 1/2A3-4T engine is single stage engine designed for model rocket flight. This engine is a mini engine designed for flights in lightweight rockets. Each package includes 4 engines, 4 starters and 4 starter plugs.

Quick Overview

ENGINES FOR MODEL ROCKETS

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