SR22
Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 550; Flight Crew Type 80
Communication Breakdown; Situational Awareness; Training / Qualification
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors; Environment - Non Weather Related; Procedure
I was returning from a pleasure flight from ZZZ to my home airport ZZZ1 and had joined Runway XX right downwind via the right 45. I had made all my radio calls: joining the right 45 Runway XX; established on the right 45 Runway XX; Right downwind XX; Right downwind abeam XX numbers. There were at least 2 other aircraft in the pattern and my pattern entry was quite seamless - I was careful to maintain the headings and altitudes - and monitor every other plane's position both on ADS-B and visually. Frankly; I think I did a very good job. As I was turning base; I made my radio call ('turning right base Runway XX') then I saw ***RIGHT IN FRONT ON ME***; at 11 o'clock; a Cessna 172 converging to me; same altitude; apparently on a dogleg to Runway XX. I took evasive action immediately by leveling off and stopping my turn. I think he missed me by less than 20 feet. It was incredibly close. Then I rejoined final; and went around. As I went around I saw the offending 172 landing in front of me. I vehemently asked for an explanation; as I was very shaken by what had happened. The 172 pilot finally replied and stated: 'This is an uncontrolled airport; I don't have to make radio calls'. I told him that he did something incredibly dangerous and we could have collided. He said again 'This is an uncontrolled airport; I don't have to make radio calls'. I rejoined the pattern and landed without incident.There is a lot to unpack here and I am still processing what happened. I can't see anything I could have done different. This individual had no ADS-B transponder and wasn't making any radio calls while landing at an airport with multiple aircraft in the traffic pattern.I find this absolutely unacceptable. The FAA needs to do something about this.
Pilot reported taking evasive action to avoid an aircraft in the traffic pattern. Pilot reported that the pilot of Aircraft Y stated; 'This is an uncontrolled airport. I'm not required to make radio calls.'