The H550ST (H550) is a 94% H single-use motor from Aerotech.
| Average Thrust: | 535.8012 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 94% H |
| Delays: | 14 seconds (variable) |
| Designation: | H550ST |
| Diameter: | 38.0000 mm |
| Formula: | Super Thunder |
| Length: | 206.0000 mm |
| Letter: | H |
| Manufacturer: | Aerotech |
| Name: | H550 |
| Peak Thrust: | 643.3720 N |
| Status: | In-Production |
| Thrust Duration: | 0.5790 s |
| Total Impulse: | 310.2289 Ns |
| Total Weight: | 316.0000 g |
| Type: | Single-Use |
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