Divesting its entire A-10 fleet would save the Air Force nearly $3.7 billion, including logistics and infrastructure, Air Force Chief of Staff Gen. Mark Welsh said yesterday. “We would have to shut down three to four times as many F-16 squadrons as A-10s,” to get the same savings, Welsh said at an even hosted by the American Enterprise Institute (AEI) think tank in Washington. The Air Force has been rumored to be considering cutting its A-10 fleet to manage sequestration-related…