Gaya Hidup Miscellaneous Opinions & Views

Hybrid-Propellant Rocket

3D printed hybrid rocket fuel grain

hybrid-propellant rocket is a rocket with a rocket motor that uses rocket propellants in two different phases: one solid and the other either gas or liquid. The hybrid rocket concept can be traced back to at least the 1930s.

Hybrid rockets avoid some of the disadvantages of solid rockets like the dangers of propellant handling, while also avoiding some disadvantages of liquid rockets like their mechanical complexity. Because it is difficult for the fuel and oxidizer to be mixed intimately (being different states of matter), hybrid rockets tend to fail more benignly than liquids or solids. Like liquid rocket engines, hybrid rocket motors can be shut down easily and the thrust is throttleable. The theoretical specific impulse ({\displaystyle I_{sp}}) performance of hybrids is generally higher than solid motors and lower than liquid engines. {\displaystyle I_{sp}} as high as 400s has been measured in a hybrid rocket using metalized fuels. Hybrid systems are more complex than solid ones, but they avoid significant hazards of manufacturing, shipping and handling solid rocket motors by storing the oxidizer and the fuel separately.

Source: https://en.wikipedia.org/wiki/Hybrid-propellant_rocket

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