HowToAddShips

• use the shipeditor to create a ship and save it,
• edit data/plugins/common.objecttypes.lua
• copy and adjust (change the first paramer, this is the typename) a line like

 RegisterObjectType("stuff/customship/firefly",		"stuff/customship",	{ingame_name="firefly",		gfx_shipfile="firefly.lua", hitrad=10, bHasHangar=true,hp=500, shield_max=500, cargo_max=1000, weapons={["weapontype/laser/red"]=1}  })

• edit data/config.lua
• add a line like

 gClient_PreferredBodyTypeName = "stuff/customship/firefly"  

• and replace "stuff/customship/firefly" with the typename of your ship (first param)