1/2A3-2T Engines
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1/2A3-2T Engines

1/2A3-2T Engines



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

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.


The Estes 1/2A3-2T 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. 

The 1/2A3-2T Engine is a powerful and reliable model rocket engine. Crafted with high-grade materials, these engines provide maximum thrust along with an optimal burn time. Try the 1/2A3-2T Engines for your next launch and experience the reliable, trustworthy performance.

ATTENTION: Residents of California, New Jersey, Rhode Island and North Dakota please review the Terms of Sale for state specific restrictions or See State Specific Restrictions.


Technical Specifications

Technical Specifications

  • Total Impulse

1.25 N-sec
  • Time Delay

2 Seconds
  • Max Lift Weight

2.0 oz (57 g)
  • Max Thrust

8.30 Newtons (1.9 lbs)
  • Thrust Duration

0.30 Seconds
  • Length

1.75 in. (4.4 cm)
  • Diameter

13 mm
  • Weight

.23 oz. (6.5 g)
  • Propellant Weight

0.07 oz (1.9 g)
  • Having Trouble?

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