NMAC BTWN 2 C182'S IN THE TFC PATTERN AT COE; ID.

Narrative

WE TOOK OFF BEHIND A C172 ALSO REMAINING IN THE PATTERN. AFTER TKOF (RWY 19); WE SPACED OURSELVES ACCORDINGLY FOR THE XING AND DOWNWIND; AND I HEARD THE PF ANNOUNCE. AS WE TURNED XWIND. I HEARD THE ACFT BEHIND US (C182) ANNOUNCE A GAR AND I OBSERVED HIS INITIAL CLBOUT. ON THE DOWNWIND; I HEARD HIM ANNOUNCE DOWNWIND. I LOOKED BEHIND US; BUT COULD NOT SEE HIM. WE THEN ANNOUNCED AND TURNED BASE. HE THEN STATED THAT A C152 HAD JUST FLOWN UNDERNEATH HIM. WE LOOKED FOR THE C152 ALSO. AFTER OUR TOUCH-AND-GO; C182 PLT ADVISED THAT THE ACFT DEPARTING WAS THE ACFT WHO HAD GONE UNDERNEATH HIM. WE WERE INITIALLY PUZZLED. WE CONTINUED THE PATTERN FOR ANOTHER LNDG; AND OBSERVED THE OTHER C182 PLT DISEMBARKING. WE TAXIED OVER; SHUT DOWN; AND GOT OUT. THE OTHER PLT SAID 'YOU ALMOST MET YOUR MAKER TODAY' IN A BIT OF A JUDGEMENTAL TONE. HIS PAX SAID NOTHING. HE (PLT) SAID HE NEVER HEARD OUR RADIO CALLS. (NOTE: THE PLT OF THE C172 (OTHER ACFT IN PATTERN) STATED TO ME BY PHONE LATER THAT HE HEARD OUR XWIND AND DOWNWIND CALLS.) NEITHER OF US (IN EITHER C182) SAW ONE ANOTHER PRIOR TO THE EVENT; AND WE NEVER SAW HIM AT ALL. WHAT I THINK HAPPENED: AFTER OUR TKOF AND SPACING BEHIND THE C172 AND MY OBSERVATION OF THE C182'S DEP BEHIND US; I BELIEVE HE (C182) TURNED A SHORTER XWIND THAN US AND FLEW A CLOSER PATTERN. (BY BOTH OUR STATEMENTS; WE WERE AT THE SAME ALT.) THEN WHEN WE STARTED DOWN AND TURNED BASE; WE WENT BELOW HIM AT 90 DEGS; WHERE HE SAW US. PREVENTION: I BELIEVE THE OTHER ACFT WAS NOT AS DILIGENT TO LISTENING UP; TO OUTSIDE VISUAL REF; AS HE COULD HAVE BEEN. BEING BEHIND US; HE SHOULD HAVE: 1) KEPT US IN SIGHT; AND 2) LISTENED UP.