Case #64 shows Bill Allmon's NACA modified Mustang, s/n 44-84900, as it appeared at the time it was placed on display at the Greater Pittsburgh airport, by the Pennsylvania ANG. Built as a P-51D-25NA, it was modified by the National Advisory Council for Aeronautics (where it became NACA127) for testing various airfoil shapes and other experimental work. After sitting for many years at the Pittsburgh airport, it was acquired by noted warbird collector David Tallichet, for eventual restoration to airworthyness. It was loaned to the Air Heritage Foundation Museum in Beaver Falls, Pennsylvania, who began to make plans for the rebuild. Before this could take place, the project was offered for sale in 1993 through Mark Clark's Courtesy Aircraft, and was purchased by present owner, Bill Allmon. The project was shipped to John Muszala's Pacific Fighters shop, and the pristine restoration was completed just in time for it to attend AirVenture '98, where it won the Grand Champion Warbird, Post WWII award, along with the coveted Golden Wrench award for the crew at Pacific Fighters. It wears the registration N51YZ, and it is currently based in Las Vegas, Nevada.