FLT OF 2 VARGA KACHINA'S ACFT IN THE PATTERN AT CRQ; CLRED TO FOLLOW HAWKER JET ON FINAL; CAUSED A TCAS EVENT.

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I WAS THE LEAD OF A FLT OF 2 VARGA KACHINA'S. DUE TO TFC VOLUME WE HAD BEEN INSTRUCTED TO CIRCLE 3 TIMES N OF THE PWR PLANT AT 3000 FT PRIOR TO ENTERING CLASS D. THERE WAS A BROKEN LAYER OVER THE ARPT AND TO THE S. N AND E WERE SCATTERED TO CLR. WE DSNDED VFR ON THE 45 DEGS TO R DOWNWIND FOR RWY 24. ON THE DOWNWIND I REQUESTED THE OVERHEAD BREAK. TWR APPROVED SEQUENCING US BEHIND A HAWKER JET ON A 9 MI FINAL. TWR THEN ATTEMPTED TO CONTACT THE HAWKER WHO MUST HAVE BEEN WITH SOCAL. THE HAWKER CALLED UP A SHORT TIME AFTER THAT AND WAS CLRED TO LAND. I RPTED THE TFC IN SIGHT WHEN WE WERE ABOUT 1 1/2 MI DOWNWIND. TWR INSTRUCTED ME TO KEEP IT IN TIGHT TO THE HAWKER; AS ANOTHER JET WAS BEHIND IT. I ACKNOWLEDGED. AT ABOUT 2 MI DOWNWIND; IT LOOKED LIKE THE HAWKER WAS DOING ABOUT 140 KTS AND WAS ON GS. I BEGAN OUR TURN TO BASE WHEN IT WAS IN ABOUT THE 2 O'CLOCK POS; ESTIMATING THE JET WOULD BE WELL PAST AS WE APCHED FINAL; BUT ALSO COMPLYING WITH THE INSTRUCTION TO STAY IN CLOSE. AT THE CLOSEST POINT IT APPEARED WE WERE ABOUT 300 FT ABOVE AND 1/4 MI HORIZLY TO THE JET. WE WERE LEVEL AT 1500 FT AND 90-100 MPH (75-85 KTS) THE SPD FLUCTUATING DUE TO LIGHT TURB. THERE WAS THEN A RADIO XMISSION PROBABLY FROM THE HAWKER STATING HIS TCAS HAD SOMEONE 100 FT FROM HIM. THERE WERE THEN MANY OVERLAPPING XMISSIONS. AFTER THE CTLR WAS ABLE TO CLR THE FREQ; THE PLT SAID HE WOULD CALL THE TWR ONCE ON THE GND. WHEN WE TURNED FINAL THE HAWKER WAS WELL W OF US AND LOWER. THERE WAS NEVER A HAZARD OF COLLISION OR CONFLICT. IN DEBRIEFING WITH MY WINGMAN ON THE GND; IT WAS LEARNED THAT BOTH OF US HAD OUR XPONDERS ON. IT IS NOT KNOWN IF THIS WOULD CAUSE TCAS TO ALERT; OR SHOW US CLOSER THAN IT VISUALLY APPEARED WE WERE. IN RETROSPECT; DUE TO THE TFC VOLUME I SHOULD HAVE CANCELED MY REQUEST FOR THE OVERHEAD BREAK. I ALSO SHOULD HAVE WAITED A FEW MORE SECONDS PRIOR TO TURNING BASE TO GIVE A LITTLE MORE HORIZ CLRNC. I KNEW THAT AT 2 MI THE HAWKER WOULD BE DOWN AND OFF THE RWY BY THE TIME I WAS ON SHORT FINAL. THE CTLRS IN THE TWR AT PALOMAR ARE VERY GOOD AT HANDLING THE HVY VOLUME IF THE PLTS CAN HELP OUT. PERHAPS I FELT TOO COMPELLED AND KEPT IT IN TIGHTER THAN NECESSARY.