DA40 Diamond Star
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Flight Crew Last 90 Days 100; Flight Crew Total 3400; Flight Crew Type 800
Situational Awareness; Communication Breakdown
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action; Flight Crew Executed Go Around / Missed Approach
Human Factors
I was CFI in Aircraft X; DA40. Aircraft Y was a Cherokee (I think). My student and I had been flying VFR patterns at ZZZ for approximately 30 minutes; making all our normal calls on CTAF even though we were the only aircraft in the pattern the entire time. Due to winds and sun angle we were utilizing Runway XX. Upon our missed approach from the fifth pattern; while on the upwind still climbing out; we observed Aircraft Y on a collision course with us. That aircraft was approaching the airport straight-in to Runway YY. There had been NO position calls from that aircraft up to that point. I immediately initiated evasive action and passed approximately 1;000 feet to the right (due to the angles at the time) and nearly co-altitude with the aircraft. Only after I queried the aircraft did he respond and confirm his tail number. He maintained a too-close position to us even though we were reporting our position to him relative to his airplane as well as our position in the pattern. This individual maintained that he had made requisite position calls; but he had clearly not and likely not even been on the frequency. He apparently did not understand/hear that we were working the opposing runway...or he didn't care.We departed the pattern after the pattern following the conflict. Aircraft Y landed full stop.
DA-40 Flight Instructor reported an NMAC during climbout with another aircraft approaching the opposite end of the same runway; requiring evasive action. Reportedly; the pilot of the other aircraft had not made any position announcements.