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.
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Estes Rocket Motors - 1/4A3-3T (Pack4) Additional Information:- Length: 1.75 in. (4.4 cm)
- Diameter: .50 in. (13 mm)
- Estimated Weight: .21 oz. (6 g)
- Total Impulse: 0.625 N-sec
- Time Delay: 3 Seconds
- Estimated Max Lift Weight: 1.0 oz (28 g)
- Max Thrust: 4.90 Newtons (1.1 lbs)
- Thrust Duration: 0.25 Seconds
- Initial Weight: 0.21 oz (5.9 g)
- Propellant Weight: 0.05 oz (1.3 g)
- Quantity Per Pack: 4
- Brand: Estes
- Part No: D-ES1502
- Barcode: 047776015029
- Size: A
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I have a 2 stage rocket, what motor co i need for the first stage which must not have a chute charge as this blows up the rocket before the second motor ignites
Many thanks
Asked by Simon Maskrey on 31st December 2017
You need a zero motor such as B6-0 or C6-0 for example
Answered by: Ben @ Wheelspin Models
