SMA PERFORMING TRAINING MANEUVERS HAS NMAC WITH ATR42.

Narrative

I WAS ON A TRAINING MISSION TO BECOME A FLT INSTRUCTOR WITH MY CURRENT INSTRUCTOR UNDER THE HOOD. WE WERE DOING ATTITUDE INST FLT PROCS AS I WAS WATCHING FOR TFC. IN THE MANEUVER IN QUESTION; WE HAD DONE SEVERAL CLRING TURNS PRIOR AND I HAD NOTICED NOTHING UNUSUAL. I LOOKED OVER MY INSTRUCTOR'S SHOULDER FOR TFC AND SAW NOTHING SO WE STARTED A 20 DEG BANKED; CLBING TURN TO THE L (360 DEGS). AS WE REACHED THE 180 DEG POINT; THE SUN WAS STRAIGHT OFF THE NOSE AND I COULDN'T SEE OUTSIDE; BUT STRAINED TO SEE IF ANY TFC WAS OUT THERE; AT THE SAME TIME TRYING TO CORRECT THE SIMULATED ERRORS THAT MY INSTRUCTOR WAS GIVING ME. WE WERE PASSING THROUGH 4000 FT NOW AND JUST BEFORE WE LEVELED OFF; I SAW THE ATR-42 PASS ABOVE THE ACFT AT NO LESS THAN 400 FT VERTICALLY. I ALERTED MY FLT INSTRUCTOR AND SHAKEN; I DECIDED TO END THE LESSON AND RETURN TO THE ARPT. LATER I REALIZED THAT THE ATR'S FLT PATH WAS COMING FROM THE SAME DIRECTION THAT THE SUN WAS COMING FROM AT THE 180 DEG POINT OF OUR TURN; AND THAT; UNFORTUNATELY; IT WAS IMPOSSIBLE FOR ME TO SEE THE ACFT AGAINST THE SUN. ATC CONTROLLING ACFT GOING THROUGH AND INTO THE CLASS C TERMINAL AREA (AIRPORT 20 NM N OF OUR FIELD) TEND TO BRING THOSE ACFT IN LOW OVER OUR PRACTICE AREA (OUTSIDE THEIR AIRSPACE) MAKING FOR A POTENTIALLY FATAL SIT WHICH I SHOULD HAVE BEEN; AND WILL BE SUFFICIENTLY MORE AWARE OF IN FUTURE TRAINING FLTS.