A C210 PILOT APPROACHING FHR EXPERIENCES NMAC WITH A PIPER CHEROKEE.

Narrative

I APCHED ZZZ FROM THE SE; SIGNED OFF FLT FOLLOWING WITH WHIDBEY APCH; SWITCHED TO LCL TA FREQ AND SWUNG OUT TO THE W FOR SOME SIGHTSEEING WITH OUT OF TOWN VISITORS. A FEW MINS LATER I ANNOUNCED AT 1200 FT FOR A 45 DEGS FOR DOWNWIND TO RWY XX. ON ANNOUNCING JOINING THE R DOWNWIND; 2 TO 3 OTHER PLANES ANNOUNCED THE SAME (AND ONE OF THOSE STATED THAT HE WAS ENTERING FROM THE E ON A XWIND OVER THE NUMBERS). 1 PLT STATED THAT HE WAS CLBING OUT OF THE PATTERN BECAUSE OF CONFLICTS. I ANNOUNCED THAT I DIDN'T HAVE ANY OF THE OTHERS IN SIGHT AND WAS EXITING THE PATTERN TO THE W TO RE-SET UP. I FLEW OUT TO LANDMARK AND DOWN THE COAST FOR ANOTHER ATTEMPT. AFTER JOINING THE DOWNWIND FOR THE SECOND TIME; I WAS #2 FOR LNDG AND WELL BEHIND #1 WHO I HAD IN SIGHT. #1 PLANE ANNOUNCED THAT HE WAS GOING TO EXTEND HIS DOWNWIND TO GIVE A PLT TRYING TO DEPART RWY YY TIME TO TAKE OFF. THE RWY YY PLT ULTIMATELY DECIDED TO TAXI TO RWY XX INSTEAD. A PIPER ANNOUNCED HIS INTENTIONS TO JOIN R DOWNWIND FOR RWY XX. I EXTENDED MY DOWNWIND AND TURNED R BASE AFTER THE #1 TFC. THE PIPER MADE NO FURTHER ANNOUNCEMENTS; SO I WAS WATCHING FOR HIM. I MADE MULTIPLE ANNOUNCEMENTS REGARDING OUR EXTENDED DOWNWIND AND OUR R BASE CLOSE TO THE N SHORELINE; AND THEN ANNOUNCED A 2 MI FINAL FOR RWY XX AND LOCATED A PIPER CHEROKEE ON CLOSE-IN DOWNWIND. THE PIPER THEN STARTED TO ROLL INTO A R BASE TURN AND THEN ANNOUNCED THAT HE WAS TURNING R BASE. HE TURNED DIRECTLY TOWARDS US. I DECLARED AN EMER SITUATION; STARTED EVASIVE ACTION AND CALLED FOR HIM TO DIVERT. HE WAS SLOW TO DO THAT; TURNED SHARPLY TO HIS L AND NEARLY COLLIDED WITH US AS HE PASSED BEHIND US. WE WENT ON TO LAND AND HE LANDED IMMEDIATELY BEHIND US -- I BELIEVE THAT WE WERE STILL ON THE RWY AS HE TOUCHED DOWN. I HAD 2 ADULT PAX WHO WITNESSED THE INCIDENT. ONE HOLDS COMMERCIAL; SEL; AND INST CERTIFICATES. THE NON-PLT PAX STATED TO ME THAT HE SAW THE PIPER TOUCH DOWN ON THE RWY AS WE WERE TURNING TO EXIT TO THE TXWY. A CONTRIBUTING FACTOR IN THIS EVENT WAS THE DECISION OF A PLT TO DEPART RWY YY AGAINST TFC AND AGAINST THE CALM-WIND ADVISORY RWY XX. THE MAJOR CONTRIBUTING FACTOR WAS THE FAILURE OF THE PIPER PLT TO FLY A STANDARD TFC PATTERN. HE OMITTED THE 45 DEG TO THE R DOWNWIND LEG AND ENTERED A CLOSE IN EXTENDED R DOWNWIND. HE THEN FAILED TO ANNOUNCE R DOWNWIND AND FAILED TO LISTEN AND UNDERSTAND THE FACT THAT 2 ACFT WERE IN THE PATTERN AHEAD OF HIM AND BOTH WERE EXTENDING THEIR DOWNWIND LEGS BECAUSE OF TFC. HE THEN TURNED BASE WITHOUT LOOKING TO HIS L AND SEEING ONCOMING TFC. THE FACT THAT HIS DOWNWIND LEG WAS SO CLOSE TO THE RWY; SHORTENED THE REACTION TIME FOR CORRECTIVE ACTION.