Side Separator or Booster Separator is a part mainly used to detach boosters from inner stages during flight. They are attached when building the rocket in the Build Editor.
They are recommended over rotated separators as side separators are lighter and more aerodynamic. Unlike regular separators, which look circular, side separators appear as two dark rectangular objects and separate in the middle. Each half will stay on the surface it's connected to, but will not have any mass to affect the craft's functionality.
If a stage is only used in space, and enclosed in a fairing during all atmospheric use before decoupling, a one-way Docking Port (to decouple from the craft with the expended stage) is preferable, because it uses half the area of a side separator, 5% less mass before decoupling and no mass after decoupling.
- Side separators can also function as projectile weapons as their halves separate with great speed and force.
|Basics||Parachute • Capsule • Hawk Engine • Valiant Engine • Kolibri Engine • Fuel Tanks • Separator • Side Separator • Aerodynamic Nose Cone • Landing Leg|
|6 Wide||6 Wide Aerodynamic Nose Cone • Fuel Tanks • Titan Engine • Separator|
|8 Wide||8 Wide Aerodynamic Nose Cone • Fuel Tanks • Separator|
|10 Wide||Fuel Tanks • Separator|
|12 Wide||Fuel Tanks • Separator|
|Engines||Hawk Engine • Valiant Engine • Kolibri Engine • Titan Engine • Frontier Engine • RCS Thrusters • Ion Engine|
|Aerodynamic Parts||Parachute • Side Parachute • Aerodynamic Nose Cone • Aerodynamic Fuselage|
|Other||Docking Port • Landing Legs • Ion Engine • Probe • RCS Thrusters • Rover Wheels • Solar Panel|
|Currently discontinued in Version 1.5|
|Battery • Radioisotope Thermoelectric Generator|