LEAR 24 HAS NMAC WHEN DEPARTING CLASS D AIRSPACE ON AN IFR FLT PLAN AND ENTERING CLASS C AIRSPACE.

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THE CLRNC WAS AS FOLLOWS: DEPART RWY 26L; RWY HDG TO 1400 FT; L CLBING TURN TO 130 DEG HDG; AND 4000 FT TO INTERCEPT THE POM 164 DEG RADIAL TO PRADO INTXN; V16 PARADISE VOR; PARADISE 130 DEG RADIAL TO INTERCEPT V64 THERMAL; TWENTYNINE PALMS; AS FILED (RNAV DIRECT ICT) EXPECTING FL390. WE DEPARTED USING NORMAL NOISE ABATEMENT PROCS AND IN COMPLIANCE WITH OUR CLRNC ENTERED A L CLBING TURN WHEN WE REACHED 1400 FT MSL. AS WE WERE PASSING 2800-3000 FT AND TURNING THROUGH 150 DEGS WE ENCOUNTERED WHAT I WILL SAY WAS VIRGA. AS WE EXITED THE PRECIP WE PASSED AN ACFT (PIPER TYPE -- ARCHER; WARRIOR; ETC) IN A NEARLY HEAD-ON SIT. I WAS SOLELY ON INSTS AND ONLY NOTED WITH MY PERIPHERAL VISION THAT THE R SIDE OF THE WINDSHIELD HAD 'BLINKED' BROWN (OR DARK RED). WHEN I ASKED THE FO IF WE HAD PASSED A BIRD; HE INDICATED WE HAD JUST MISSED AN ARCHER TYPE WHO APPEARED TO BE IN A HARD L TURN WITH HIS WINGTIP MISSING OURS BY A FEW FT. WHEN WE ASKED DEP CTL ABOUT THE TFC; WE WERE TOLD THAT THE TWR HAD BEEN INFORMED. TO THE BEST OF MY KNOWLEDGE WE WERE NEVER GIVEN ANY INFO CONCERNING THIS TFC. I MUST SAY BEING INFORMED OF THIS TFC IN THIS SIT WOULD HAVE BEEN OF LITTLE CONSEQUENCE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES HIS ACFT WAS A LEAR 24 WITH THE FAST WING. HE FEELS THE OTHER ACFT WAS AVOIDING THE VIRGA WHICH THEY HAD JUST PASSED THROUGH IN ORDER TO MAINTAIN VFR. HE WAS DEFINITELY NOT VFR AT THE TIME DUE TO PROX OF CLOUDS. WHEN QUESTIONING APCH ABOUT THE ACFT; APCH INDICATED THEY HAD NOTIFIED THE TWR OF THE TFC. RPTR WAS NEVER ISSUED THIS TFC. HE FEELS THERE IS VERY POOR COORD BTWN THE TWR CTLR AND THE CLASS C TRACON PERSONNEL. THIS ARPT IS BENEATH THE FLOOR OF THE CLASS C AIRSPACE AND THE ABRUPT TURN IS TOWARD THE CLASS C AREA. THESE ACFT WERE NOT TALKING TO THE SAME CTLR WHICH IS PART OF THE PROB; BUT THEIR POS SHOULD BE COORD BTWN THE CTLRS. RPTR MENTIONED THE EXPERIENCE TO BOTH HIS CHIEF PLT AND DIRECTOR OF OPS WHO HAD BOTH BEEN ISSUED THE SAME STANDARD CLRNC BUT IN DIFFERENT ACFT AND BOTH FEEL IT IS AN ACCIDENT WAITING TO HAPPEN. RPTR STATED HE WILL REFUSE TO TAKE A LEAR JET INTO THAT ARPT AGAIN AS HE FEELS THE SPD IS JUST TOO GREAT FOR THAT AREA WITH SUCH POOR PROCS.