Add-on

Add-on is the term used in the Orbiter community to describe those additional ships, bases and functions that are not included in the basic distribution of Orbiter. An alternative term for such extensions is modification (or mod). These are written by members of the commmunity and freely distributed.

Many of these are available at Orbithangar or Avsim.

The possible main add-on classes for Orbiter are:

• Vessels
• Solar systems
• Celestial bodies
• Surface bases
• MFDs
• Custom functions
• Plug-ins, which are neither MFD nor custom function
• Launch pad extensions

Vessel add-ons

A vessel add-on consists minimal of a configuration file describing its physical properties and a mesh for its visual representation.

Add-on lists

• Category:Add-ons
• List of dwarf planet add-ons
• List of planet add-ons
• List of natural satellite add-ons

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