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Sky Ripper hybrid motors certified by TMT |
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2004 Archived News by Sky Ripper Systems
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Friday, July 09, 2004 |
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GRAYLING, Michigan USA — Sky Ripper Systems, makers of hybrid rocket motors for the sport rocketry community, is happy to announce their first product line: the Sky Ripper Systems 38mm motor system. This motor system is unique in several ways and offers great flexibility to all sport rocketry enthusiasts.
Sky Ripper hybrid systems currently are certified for use with multiple fuel types. Level 1 and level 2 fliers can choose between PVC and polypropylene fuels, depending on the flight profile desired. PVC produces lower average thrust rates, dark black smoke and a sound that is much like that of a solid motor. Polypropylene features a higher average impulse, more total impulse and a very loud hybrid-style combustion.
The reload kits are identical for all motor hardware, so one reload kit can be either an H, I, or J, depending on the hardware it is installed in. Ignition supplies are included with the reload kit and can be shipped by qualified dealers via USPS, with no hazmat charge required.
All internal motor components are identical, so the same injector and nozzle work for each of the six motor types. The durable snap ring based cases insure easy assembly and are compatible with both Slimline and Aeropak motor retainers.
Tripoli Motor Testing has certified the following 38mm reload kits and Sky Ripper Systems hardware for sport rocketry use:
Hardware: Fuel: Designation:
38/220 PVC H-124
38/220 Polypro H-155
38/400 PVC I-119
38/400 Polypro I-147
38/580 PVC I-117
38/580 Polypro J-144
For more information and a dealer listing, please visit http://www.skyrippersystems.com. |
