The Swiss AF operated Hawks, but not this one and not even one with this serial (the highest serial was U-1270). The Swiss AF sold its Hawks to Finland in 2007. These entered service there between 2011 and 2013 and are scheduled to remain in service until 2030. To make it even more complicated, this preserved aircraft is a former Finnish AF aircraft. However, not one of the former Swiss aircraft, but one of the original batch delivered in 1980 (former HW-370, obtained by the museum in 2018).

Reverse Hawk deal. The Swiss AF operated 20 Hawk T.66s, of which 18 were sold to Finland in 2012. Of the other two, one crashed and one was preserved at Dübendorf. When the Payerne museum wanted to display an example, they obtained a Finnish example, HW-310, and painted it convincingly to represent a Swiss Mk. 66, using the next serial in sequence after the actual allocations U-1251 to U-1270.