The C4 is a 78% C single-use motor from Apogee.
| Average Thrust: | 3.7950 N | 
| Certified By: | National Association of Rocketry | 
| Class: | 78% C | 
| Delays: | 3,5,7 seconds | 
| Diameter: | 18.0000 mm | 
| Length: | 50.0000 mm | 
| Letter: | C | 
| Manufacturer: | Apogee | 
| Name: | C4 | 
| Peak Thrust: | 11.3100 N | 
| Status: | Out-Of-Production | 
| Thrust Duration: | 2.3500 s | 
| Total Impulse: | 8.9190 Ns | 
| Total Weight: | 17.0000 g | 
| Type: | Single-Use | 
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