In March when most airfields are challenged with bad weather, many old military aircraft that make the rounds of the airshow circuits in the summer come to Tucson to practice. Usually for three days you will see many famous aircraft of years gone by flying along side of modern aircraft. Some that were seen were, P-51, P-47, P-40, and others as well as A-10, F-4, F-16, F-15 and the newest F-22.