1/2A3-4T Engines (001504)

1/2A3-4T Engines (001504)

Mini 13mm Engines for Model Rockets

16.95 16.95 16.95 CAD1997-01-06 00:00:006.0 6.0 16.95

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SKU: 047776015043

Safety Warning This product may contain sharp points, small parts that are choking hazards, or other elements that are not suitable for children.


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001504 - 1/2A3-4T Engines Description

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

Technical Specs

  • Length: 1.8 in. (4.6 cm)
  • Diameter: .50 in. (13 mm)
  • Estimated Weight: .23 oz. (6.5 g)
  • Total Impulse: 1.25 N-sec
  • Time Delay: 4 Seconds
  • Estimated Max Lift Weight: 1.0 oz (28 g)
  • Max Thrust: 8.30 Newtons (1.9 lbs)
  • Thrust Duration: 0.30 Seconds
  • Initial Weight: 0.23 oz (6.6 g)
  • Propellant Weight: 0.07 oz (1.9 g)
  • Quantity Per Pack: 4