Small Aircraft
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 180; Flight Crew Total 6000; Flight Crew Type 1000
Communication Breakdown; Training / Qualification
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors; Procedure
The active runway was 29. I was on base leg with my student; there were 3 other planes in the pattern and 4 waiting for takeoff at the end of the runway when Aircraft Y did an apparent go around from [Runway] 11 and cut right in front of me. This distance was 300 ft or less and caused me to use evasive action. They had not used the radio at all. Then they asked what was the active runway. I told them; then they lined up for Runway 23 which we do not have; for landing. The pattern was very busy and if they had flown over the field they easily could have seen what runway was the active. This was witnessed by all the planes at the 29 end that were waiting for takeoff.
Instructor pilot reported a NMAC with an aircraft that was not flying the correct pattern.