Looking at the hi-res satellite shot of the base on Google Maps it looks like the airfield might once upon a time have followed the standard BCATP triangular layout - 03/21 and the closed taxiway would form two of the sides, and a no longer existing runway parallel to the (current) ramp would've made up the third. The parallel runways would be later additions, added, perhaps, when the T-birds and Tutors started flying here after the war. Is there anything to this hunch or am I completely wrong on this? When I have some time to spare I'm going to drop in to the museum here and see what kinds of maps or other archives from the war era they have but my free time is pretty limited these days!