The 683J250-15A (J250) is a 7% J 54mm 2-grain reloadable composite sparky motor from Cesaroni Technology Incorporated (CTI).
This motor uses an E-Match igniter.
This reload fits a Pro54-2G motor case.
CTI's Skidmark propellant produces a yellow flame, black smoke, and yellow sparks. Like other "sparky" motors, it is also loud.
| Average Thrust: | 230.2410 N | 
| Casing: | Pro54-2G | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 7% J | 
| Delays: | 5,6,7,8,9,10,11,12,13,14,15 seconds (variable) | 
| Designation: | 683J250-15A | 
| Diameter: | 54.0000 mm | 
| Formula: | Skidmark | 
| Igniter: | E-Match | 
| Length: | 237.0000 mm | 
| Letter: | J | 
| Manufacturer: | CTI | 
| Name: | J250 | 
| Peak Thrust: | 283.6380 N | 
| Propellant: | APCP | 
| Status: | In-Production | 
| Thrust Duration: | 2.9600 s | 
| Total Impulse: | 682.6630 Ns | 
| Total Weight: | 830.0000 g | 
| Type: | Reloadable | 
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