Check the
Game_Vehicle script section and search for this:
CODE
#--------------------------------------------------------------------------
# * Refresh
#--------------------------------------------------------------------------
def refresh
if @driving
@map_id = $game_map.map_id
sync_with_player
elsif @map_id == $game_map.map_id
moveto(@x, @y)
end
case @type
when 0;
@priority_type = 1
@move_speed = 4
when 1;
@priority_type = 1
@move_speed = 5
when 2;
@priority_type = @driving ? 2 : 0
@move_speed = 6
end
@walk_anime = @driving
@step_anime = @driving
end
See the third
@move_speed = 6? It's the speed of the airship. A lower value will slow it down.