The H78 is an 8% H unknown composite motor from Sky Ripper.
| Average Thrust: | 62.8150 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 8% H |
| Delays: | 1000 seconds |
| Diameter: | 29.0000 mm |
| Length: | 520.7000 mm |
| Letter: | H |
| Manufacturer: | Sky Ripper |
| Name: | H78 |
| Peak Thrust: | 150.1000 N |
| Propellant: | APCP |
| Status: | Out-Of-Production |
| Thrust Duration: | 2.7500 s |
| Total Impulse: | 172.7420 Ns |
| Total Weight: | 418.0000 g |
| Type: | Unknown |
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