Before revision: File:SchemaEffettoMeredith-n.svg| P-51 radiator duct schematic diagram: 1 - flap control system, 2 - air inlet, 3 - oil radiator, 4 - oil radiator air outlet, 5 - engine coolant radiator, 6 - flaps, 7 - main air outlet.
After revision: P-51 radiator duct schematic diagram: 1 - flap control system, 2 - air inlet, 3 - oil radiator, 4 - oil radiator air outlet, 5 - engine coolant radiator, 6 - flaps, 7 - main air outlet.