Copter Simulation Discussions area for <a href="http://ardupilot.org/dev/docs/sitl-simulator-software-in-the-loop.html"> Software In the Loop</a> (SITL) <a href="http://ardupilot.org/dev/docs/simulation-2.html">Simulation</a> related to copter
Copter 3.5 Discussions and support for Copter 3.5
Single/Coax This category is for support discussion on the Single Copter and Coax Copter frame types.
Copter 3.4 This Category is for the discussion of Copter 3.4 release.
SkyViper This is a place to discuss the <a href="http://ardupilot.org/copter/docs/skyrocket.html">SkyViper GPS drone</a>. Please use this only for things that are specific to the SkyViper.
Copter 3.1 Discussions and support requests for Copter 3.1
Copter 3.2 Discussions and support requests for Copter 3.2
Copter 3.6 Copter 3.6 discussion including support issues
Copter 3.3 Discussions and support requests for Copter 3.3