The port's cover must be opened before it can be used for docking. This allows the port to be hidden within a stack of small parts. Inline Clamp-O-Tron is a small port mounted within a recessed bay in a 1.25m cylindrical fuselage.This protects the port from atmospheric friction.

Clamp-O-Tron Shielded Docking Port is a small port (compatible with the Clamp-O-Tron Docking Port) covered by a retractable shield.Clamp-O-Tron Docking Port is the small port.

Inflatable Airlock (DLC), when opened, can function as a tiny port.

That part can then be undocked, but not redocked. When constructing a spacecraft, another part which is not a docking port can be placed on it. In order to dock two spacecraft, both must be equipped with docking ports of equal size. There are seven docking ports available for different sizes and docking directions. Note that docking mode isn't required for docking on the PC version, however it is required on the Console version of KSP. Once the ships have separated (about 5-10m) the magnetic clamping feature will automatically reset. In order to facilitate separation, the magnetic clamping feature is turned off when undocking is executed. To undock simply right click either of the docking clamps and click undock. The Kerbanauts may be transferred manually using EVAs, or using crew transfer. While docked, you can transfer resources (fuel, etc.) by clicking on a tank, and then Mod+ right click on another target and pressing the desired In/Out switches of the windows that pop up. There are also special key bindings for translation in staging mode: I K for up and down, J L for left and right, and H N for forward and back. Note that you don't have to be in docking mode to dock - if you manage to align your docking ports using the regular controls, everything will still work. If your ports stick together, but don't actually dock, try turning the SAS off: it might be preventing your ship from turning a crucial few degrees. The tolerance for the clamps is quite generous, however, it can take some time for it to kick in - so once you get your ports in close proximity, just wait a bit before trying to get any closer (and possibly damage your ships). Once your docking ports are very close (or touching) they will magnetically clamp to each-other and you will have successfully docked. W S will be used to move forward and backwards, A D will be used to move left and right, ⇧ Shift and ^ Ctrl will be used to move up and down. Activate RCS (the default key is R) and the controls will be very similar to the EVA controls. What is happening now is that docking port will be seen as the 'center' of your ship. Right click the docking port on your ship and hit 'control from here'. Also keep an eye out for how your ships will connect and make sure you won't run into solar panels or other modules on your approach. Remember to toggle any docking-port covers if necessary. To dock with a nearby object (see Tutorial:Orbital Rendezvous or the basic maneuvers page for how to rendezvous with another object in orbit), start by rotating your ships so their docking ports are facing each-other. This mode requires that the craft is fitted with RCS (or it will do nothing). In docking mode your main engines are shut off and your normal WASD controls map to RCS translation maneuvers instead. The faintly purple button around the bottom left corner of the screen (just below the green staging button, and above the blue map button) sets your ships into docking mode. Specialised docking controls, although they are not required to dock

Kerbal space program demo crew