T' K400S (K400) is a 7% K reloadable composite motor from KBA.
| Average Thrust: | 354.9535 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 7% K | 
| Delays: | 6,10,14 seconds | 
| Designation: | K400S | 
| Diameter: | 54.0000 mm | 
| Length: | 403.0000 mm | 
| Letter: | K | 
| Manufacturer: | KBA | 
| Name: | K400 | 
| Peak Thrust: | 465.9280 N | 
| Propellant: | APCP | 
| Status: | Out-Of-Production | 
| Thrust Duration: | 3.8700 s | 
| Total Impulse: | 1373.6700 Ns | 
| Total Weight: | 1509.3100 g | 
| Type: | Reloadable | 
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