Editing Hybrid-propellant rocket (section)

===Advantages compared with solid rockets===
* Higher theoretical <math>I_{sp}</math> – Possible due to limits of known solid oxidizers compared to often used liquid oxidizers.
* Less explosion hazard – Propellant grain is more tolerant of processing errors such as cracks since the burn rate is dependent on oxidizer mass flux rate. Propellant grain cannot be ignited by stray electrical charge and is very insensitive to auto-igniting due to heat. Hybrid rocket motors can be transported to the launch site with the oxidizer and fuel stored separately, improving safety.
* Fewer handling and storage issues – Ingredients in solid rockets are often incompatible chemically and thermally. Repeated changes in temperature can cause distortion of the grain. Antioxidants and coatings are used to keep the grain from breaking down or decomposing.
* More controllable – Stop/restart and [[Rocket engine#Throttling|throttling]] are all easily incorporated into most designs. Solid rockets rarely can be shut down easily and almost never have throttling or restart capabilities.