The H277 is an 85% H unknown composite motor from Contrail.
| Average Thrust: | 257.2660 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 85% H |
| Delays: | 1000 seconds |
| Diameter: | 38.0000 mm |
| Length: | 719.0000 mm |
| Letter: | H |
| Manufacturer: | Contrail |
| Name: | H277 |
| Peak Thrust: | 765.5080 N |
| Propellant: | APCP |
| Status: | In-Production |
| Thrust Duration: | 1.1500 s |
| Total Impulse: | 295.8560 Ns |
| Total Weight: | 710.0000 g |
| Type: | Unknown |
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