The 1654K515-16A (K515) is a 29% K 54mm 5-grain reloadable composite sparky motor from Cesaroni Technology Incorporated (CTI).
This motor uses an E-Match igniter.
This reload fits a Pro54-5G 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: | 493.7720 N | 
| Casing: | Pro54-5G | 
| Certified By: | Canadian Association of Rocketry | 
| Class: | 29% K | 
| Delays: | 6,7,8,9,10,11,12,13,14,15,16 seconds (variable) | 
| Designation: | 1654K515-16A | 
| Diameter: | 54.0000 mm | 
| Formula: | Skidmark | 
| Igniter: | E-Match | 
| Length: | 488.0000 mm | 
| Letter: | K | 
| Manufacturer: | CTI | 
| Name: | K515 | 
| Peak Thrust: | 710.0000 N | 
| Propellant: | APCP | 
| Status: | In-Production | 
| Thrust Duration: | 3.3500 s | 
| Total Impulse: | 1654.1300 Ns | 
| Total Weight: | 1654.0000 g | 
| Type: | Reloadable | 
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