This image shows a P-39 named RUTH-LESS 2nd and its original pilot Lt. Col. R. W. Plahn. Is this the plane Walt talks about inheriting from a pilot who has been sent home, or did Walt inherit that pilot’s first plane? Walt doesn’t say anything about it being the 2nd, but maybe he will. You can see the photo and a description here: Ruth-Less
He does specifically say he gets his own Mustang, not a 39, so it’s a little confusing.