T' J425 is a 6% J single-use motor from Aerotech.
| Average Thrust: | 412.9472 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 6% J | 
| Delays: | 14 seconds (variable) | 
| Diameter: | 38.0000 mm | 
| Length: | 356.4000 mm | 
| Letter: | J | 
| Manufacturer: | Aerotech | 
| Name: | J425R | 
| Peak Thrust: | 452.8510 N | 
| Status: | In-Production | 
| Thrust Duration: | 1.6480 s | 
| Total Impulse: | 680.5370 Ns | 
| Total Weight: | 631.0000 g | 
| Type: | Single-Use | 
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