The J357WW (J357) is a 56% J reloadable composite motor from AMW.
| Average Thrust: | 338.6700 N |
| Certified By: | National Association of Rocketry |
| Class: | 56% J |
| Delays: | 1000 seconds |
| Designation: | J357WW |
| Diameter: | 54.0000 mm |
| Length: | 326.0000 mm |
| Letter: | J |
| Manufacturer: | AMW |
| Name: | J357 |
| Peak Thrust: | 402.3500 N |
| Propellant: | APCP |
| Status: | Out-Of-Production |
| Thrust Duration: | 2.9500 s |
| Total Impulse: | 999.0760 Ns |
| Total Weight: | 1210.1000 g |
| Type: | Reloadable |
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