1/2A3-4T Model Rocket Engines, (4pk)
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Description
The Estes 1/2A3-4T engine is a mini, single-stage engine built for lightweight model rockets up to 1.0 ounce. With a total impulse of 1.25 N-sec, a maximum thrust of 8.3 newtons, and a brief 0.3-second thrust duration, it's designed for quick, reliable flights in smaller models.
Each 1/2A3-4T engine pack includes four engines, four starters,...
Each 1/2A3-4T engine pack includes four engines, four starters,...
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