fixed_ship_battery_slot = {
				required = yes
				allowed_module_categories = { ship_heavy_battery }
			}
			fixed_ship_anti_air_slot = {
				required = no
				allowed_module_categories = { ship_anti_air }
			}
			fixed_ship_fire_control_system_slot = {
				required = no
				allowed_module_categories = { ship_fire_control_system }
			}
			fixed_ship_radar_slot = {
				required = no
				allowed_module_categories = { ship_radar }
			}
			fixed_ship_engine_slot = {
				required = yes
				allowed_module_categories = { heavy_ship_engine }
			}
			fixed_ship_secondaries_slot = {
				required = no
				allowed_module_categories = { ship_secondaries }
			}
			fixed_ship_armor_slot = {
				required = yes
				allowed_module_categories = { ship_heavy_armor }
			}
			front_1_custom_slot = {
				required = no
				allowed_module_categories = {
					ship_anti_air
					ship_heavy_battery
				}
			}
			mid_1_custom_slot = {
				required = no
				allowed_module_categories = {
					ship_anti_air
					ship_secondaries
					ship_airplane_launcher
				}
			}
			mid_2_custom_slot = {
				required = no
				allowed_module_categories = {
					ship_airplane_launcher
					ship_anti_air
					ship_secondaries
				}
			}
			rear_1_custom_slot = {
				required = no
				allowed_module_categories = {
					ship_anti_air
					ship_heavy_battery
				}
			}