The 2398K590-15A (K590) is an 89% K 54mm 6-grain reloadable composite motor from Cesaroni Technology Incorporated (CTI).
This motor uses an E-Match igniter.
This reload fits a Pro54-6G motor case.
| Average Thrust: | 561.5620 N | 
| Casing: | Pro54-6G | 
| Certified By: | Canadian Association of Rocketry | 
| Class: | 89% K | 
| Delays: | 7,9,11,13,15 seconds (variable) | 
| Designation: | 2398K590-15A | 
| Diameter: | 54.0000 mm | 
| Formula: | Classic/Dual Thrust | 
| Igniter: | E-Match | 
| Length: | 572.0000 mm | 
| Letter: | K | 
| Manufacturer: | CTI | 
| Name: | K590 | 
| Peak Thrust: | 1,812.1000 N | 
| Propellant: | APCP | 
| Status: | In-Production | 
| Thrust Duration: | 4.3010 s | 
| Total Impulse: | 2415.2800 Ns | 
| Total Weight: | 1994.0000 g | 
| Type: | Reloadable | 
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