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The Estes 1/2A3-4T engine is single stage engine designed for model rocket flight.
Available in store
ClosePLEASE NOTE: This item will ship by US Postal Service Parcel Post only. You MUST HAVE a physical mailbox or post office box for delivery.
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 engines, 4 starters and 4 starter plugs.
Additional Information
| 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 |