02/28/2007. Remarks by Johan Visschedijk: "This Packet was one of a batch of 20 ordered (s/n 48-568/48-587, c/n 10203/10222) and delivered to the USAF with s/n 48-581. Struck off charge it came on the civil register as N7452C. It was delivered to the museum in 1988 and marked as USAF 45-57735. The job to repaint the aircraft to its present and original livery as USAF 48-581 was started on March 11, 1994."