The J145H (J145) is a 28% J unknown composite motor from Aerotech.
| Average Thrust: | 141.6960 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 28% J | 
| Delays: | Plugged | 
| Designation: | J145H | 
| Diameter: | 54.0000 mm | 
| Length: | 709.0000 mm | 
| Letter: | J | 
| Manufacturer: | Aerotech | 
| Name: | J145 | 
| Peak Thrust: | 300.1490 N | 
| Propellant: | APCP | 
| Status: | Out-Of-Production | 
| Thrust Duration: | 5.8000 s | 
| Total Impulse: | 821.5540 Ns | 
| Total Weight: | 1797.3800 g | 
| Type: | Unknown | 
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