The J1265ST (J1265) is a 67% J single-use motor from Aerotech.
| Average Thrust: | 1,182.4177 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 67% J |
| Delays: | 6,8,10,12,14 seconds (variable) |
| Designation: | J1265ST |
| Diameter: | 54.0000 mm |
| Formula: | Super Thunder |
| Length: | 397.0000 mm |
| Letter: | J |
| Manufacturer: | Aerotech |
| Name: | J1265 |
| Peak Thrust: | 1,568.4260 N |
| Status: | In-Production |
| Thrust Duration: | 0.9020 s |
| Total Impulse: | 1066.5408 Ns |
| Total Weight: | 1095.0000 g |
| Type: | Single-Use |
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