1/4A3-3T Engine
001504 - 1/2A3 Model Rocket Engine Thrust Curve Chart
Model Rocket Thrust Curve Example
    1/4A3-3T Engine
    001504 - 1/2A3 Model Rocket Engine Thrust Curve Chart
    Model Rocket Thrust Curve Example
    Estes Rockets

    1/4A3-3T Engines

    SKU: 001502
    $11.29
    Sale

    ENGINES FOR MODEL ROCKETS

    4 – 1/4A3-3T Engines
    4 – Starters
    4 – Starter Plugs

    PLEASE NOTE: You must have a physical address for delivery.

    Overview 

    Recommended Rockets

    Specs

    Reviews

    Overview

    The Estes 1/4A3-3T 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.

    ATTENTION: Estes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.

    Overview

    1/4A3-3T Engine

    Compatible Rockets

    Technical Specifications

    Technical Specifications

    • Total Impulse

    0.625 N-sec

    • Time Delay

    3 Seconds

    • Max Lift Weight

    1.0 oz (28 g)

    • Max Thrust

    4.90 Newtons (1.1 lbs)

    • Thrust Duration

    0.25 Seconds

    • Length

    1.75 in. (4.4 cm)

    • Diameter

    13 mm

    • Weight

    .21 oz. (6 g)

    • Propellant Weight

    0.05 oz (1.3 g)
    1/4A3 Model Rocket Engine Thrust Curve Chart

    Customer Reviews

    Based on 2 reviews
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    B
    Bill Dillon (Missouri City, TX)
    Love these little engines!

    Great for launching small rockets on small fields, when the urge to fly grows but the wind is not cooperating for larger, higher-flying rockets!

    C
    Colin Hensler (Las Vegas, NV)

    Great!

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    Live, Online Training and 1:1 Support

    Estes Education has been a leader in STEM education for over 60 years. We know that STEM is a vital interdisciplinary topic that requires hands-on and inclusive learning. Explore these supporting materials to take learning to new heights!

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    Learn About Model Rocket Safety!

    Not sure how to safely launch a rocket with your group? Head over to our dedicated Safety instructions page for videos, support, and more!
    How To Fly Safely
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