The J242 (38) (J242) is a 19% J unknown composite motor from Contrail.
| Average Thrust: | 245.1170 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 19% J | 
| Delays: | 1000 seconds | 
| Designation: | J242 (38) | 
| Diameter: | 38.0000 mm | 
| Length: | 1227.0000 mm | 
| Letter: | J | 
| Manufacturer: | Contrail | 
| Name: | J242 | 
| Peak Thrust: | 448.2700 N | 
| Propellant: | APCP | 
| Status: | In-Production | 
| Thrust Duration: | 3.1000 s | 
| Total Impulse: | 759.8620 Ns | 
| Total Weight: | 1065.0000 g | 
| Type: | Unknown | 
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