T' I389GT (I389) is a 70% I reloadable composite motor from Gorilla.
| Average Thrust: | 383.7601 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 70% I |
| Delays: | 18 seconds |
| Designation: | I389GT |
| Diameter: | 38.0000 mm |
| Length: | 369.0000 mm |
| Letter: | I |
| Manufacturer: | Gorilla |
| Name: | I389 |
| Peak Thrust: | 454.8500 N |
| Propellant: | APCP |
| Status: | Out-Of-Production |
| Thrust Duration: | 1.4200 s |
| Total Impulse: | 544.9394 Ns |
| Total Weight: | 692.8000 g |
| Type: | Reloadable |
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