Fuel system flow diagram and storage tank assembly details. Includes sections for bulk storage and day tanks, plus details for 2″ air vents, 50mm overflows, and an internal ladder. There’s a full legend for pumps and valves too. مخطط تدفق نظام الوقود وتفاصيل خزان التخزين بصيغة دي دبليو جي.