 At least one was used by the Zirkus Rosarius to familiarize German aircrew with the handling of American aircraft before they evaluated captured aircraft.There are many surviving NA-64 Yales today because of Ernie Simmons, a farmer from near Tillsonburg, Ontario.Simmons bought 39 Yales in 1946, along with seven Fairey Swordfish and a Westland Lysander and kept them on his farm until he died in 1970.