Small Aircraft
Situational Awareness; Communication Breakdown
Conflict Ground Conflict; Critical
Flight Crew Took Evasive Action
Airport; Human Factors; Procedure
I had been flying nonstop [for about 4 hours] until the incident on runway XX at ZZZ airport. WX was beautiful. All traffic was using runway XX all that morning as the winds were favoring that runway. When I approached the runway I made a radio call on Unicom that I was taking active for takeoff; I saw and heard nothing. During my takeoff roll at about liftoff I heard someone on the radio say something about a conflict. It was too late to abort in a tailwheel airplane with a high pressure altitude so I took off as my best option. A few seconds later I went over the top of Aircraft Y. It was so small so I guess that is why I never saw it on short final head on. I apologized to the pilot but heard nothing back. I really felt bad but I never heard a radio call nor saw an airplane. From now on I will ask if anyone is in the pattern at an uncontrolled field before takeoff.
GA pilot reported a near NMAC while departing with opposite-direction landing traffic at non-towered field.