T' J450BL (J450) is a 75% J reloadable composite sparky motor from Gorilla.
| Average Thrust: | 436.5840 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 75% J | 
| Delays: | 1000 seconds | 
| Designation: | J450BL | 
| Diameter: | 54.0000 mm | 
| Length: | 430.0000 mm | 
| Letter: | J | 
| Manufacturer: | Gorilla | 
| Name: | J450 | 
| Peak Thrust: | 601.0000 N | 
| Propellant: | APCP | 
| Status: | Out-Of-Production | 
| Thrust Duration: | 2.5700 s | 
| Total Impulse: | 1122.0200 Ns | 
| Total Weight: | 1454.5400 g | 
| Type: | Reloadable | 
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