E120 CREW HAD A NON RADIO; NON XPONDER GLIDER HAD LESS THAN LEGAL SEPARATION OVER BANNING PASS IN SCT CLASS E.

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WE DEPARTED PSP FOR LAX AND HAD A VERY CLOSE CALL WITH A GLIDER IN THE BANNING PASS. OUR SPECIFICS: PDZ 072 DEG RADIAL AT AROUND 34 DME; FLYING INTO AN 11 O'CLOCK SUN; OUT OF 11500 FT FOR 12000 FT. DETAILS: FLYING INTO THE SUN; I NOTICED A WHITE WING IN THE NEAR DISTANCE DISAPPEAR UNDER THE FORWARD R WINDSHIELD. AT THE SAME TIME; THE FO CALLED OUT TFC; A GLIDER; APPROX 200 YDS OFF THE R WING AND 150-200 FT LOWER THAN US; IN A L DSNDING TURN. THE PATHS OF BOTH ACFT WERE DIVERGING AT THE POINT WE NOTICED THE GLIDER; WITH US CLBING W ON THE AIRWAY AND THE GLIDER HEADING E BEHIND US AND APPEARING TO BE DSNDING ACCORDING TO THE FO. I IMMEDIATELY NOTIFIED ATC; WHO SAID HE HAD NOTHING ON RADAR. THERE WAS NO TFC ON TCASII. CONTRIBUTING FACTORS TO THIS EVENT WERE THE POS OF THE SUN; OUR CLOSURE SPD IN THE CLB OF APPROX 180 KIAS; AND THE FACT THAT THE GLIDER WAS MOST LIKELY IN THE 3 O'CLOCK POS OF A L TURN (RELATIVE TO THE TURN ONLY; NOT US); WITH A VERY HIGH BANK ANGLE GOING AWAY FROM US (CALLED THERMALING); AT THE TIME WE APCHED IT. SO WE WOULD ONLY HAVE BEEN ABLE TO SEE A THIN PROFILE UNTIL THE GLIDER HIT THE 12 O'CLOCK POS IN HIS TURN AND THE TOP OF THE WING BECAME INVISIBLE; WHICH; IN FACT; IS EXACTLY WHAT HAPPENED. IT HAS COME TO MY KNOWLEDGE THAT THE HEMET ARPT IS A CTR OF GLIDER ACTIVITY IN THE AREA; IF IT HELPS IN PASSING THE WORD ON TO THE GLIDER FOLKS ABOUT AIRLINE OPS. IN THE FUTURE; ESPECIALLY ON THE WEEKEND; I WILL BE MUCH MORE AWARE OF POSSIBLE GLIDER OPS IN THAT AREA.