data:extend(
{
  {
    type = "bool-setting",
    name = "aircraft-sound-setting",
    setting_type = "startup",
    default_value = true,
    order = "aa",
  },
  {
    type = "bool-setting",
    name = "aircraft-hardmode",
    setting_type = "startup",
    default_value = false,
    order = "ab",
  },
 {
    type = "bool-setting",
    name = "aircraft-belt-immunity",
    setting_type = "startup",
    default_value = true,
    order = "ac",
  },
  {
    type = "bool-setting",
    name = "helicopter-tech",
    setting_type = "startup",
    default_value = false,
    order = "ba",
  },
  {
    type = "bool-setting",
    name = "raven-tech",
    setting_type = "startup",
    default_value = false,
    order = "bc",
  },
  {
    type = "bool-setting",
    name = "heli-equipment-grid",
    setting_type = "startup",
    default_value = false,
    order = "bb",
  },
  {
    type = "bool-setting",
    name = "non-combat-mode",
    setting_type = "startup",
    default_value = false,
    order = "bd",
  },
  {
    type = "bool-setting",
    name = "inserter-immunity",
    setting_type = "startup",
    default_value = false,
    order = "be",
  },
  {
    type = "bool-setting",
    name = "disable-acid-splash",
    setting_type = "startup",
    default_value = false,
    order = "bf",
  }
})