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MK90 Propellant Grain for the HYDRA-70 Rocket Motor
ATK manufactures MK90 propellant, the exclusive propellant of the HYDRA-70, MK66 rocket motor. HYDRA-70 is the military's low cost, "fire-and-forget" 2.75 in. munition.
MK90's minimum smoke, low-signature propellant is manufactured using a unique rolling method to ensure reliability and precision. When ignited, the MK90 grain produces a low signature for battlefield concealment. When combined with other HYDRA-70 components, the MK90 grain is a tailor-made solution for both high explosive and submunition payloads, and can be used with smoke-and-illumination warheads. |
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| MK90 Propellant Grain for the HYDRA-70 Rocket Motor |
| Propellant Characteristics |
| Formulation |
Solventless, double base |
| Geometry |
Extruded grain, 8-point interior star |
| Velocity |
2,300 ft/sec |
| Pressure |
1,500 psi |
| Action Time |
1 sec |
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