Narrative:

My student and I were in the VFR traffic pattern for runway 31. The winds were favoring 31 and there was another VFR aircraft in the pattern. There was an instrument training flight shooting a VOR approach to runway 13. We were coming to a stop on 31 for a stop and go and I asked if the instrument airplane was going to be missed to the west soon right before we took off; and he said he was about to turn to heading 250 and climb to 3000 feet. We announced on CTAF that we were taking off on 31 for left closed traffic and nobody had any reaction. I was instructing my student through the takeoff and right after we lifted off I looked up and saw the instrument airplane a few hundred feet off of the ground approaching the departure end of 31 (near the numbers of 13) and they were at about our 10 o'clock (the VOR approach for 13 is slightly crooked). I took controls and maneuvered our airplane and the instrument airplane did the same and we both avoided each other; but came relatively close. The other airplane did a very steep turn and continued on their approach and came over the radio telling us that their approach took them there. They then went missed and departed the area and we stayed in the pattern. My suggestion is for instrument training aircraft doing opposite direction approaches to respect airplanes that are already in the pattern at that airport. If they want to shoot the full approach; consider making up a number for minimums at a higher altitude that will keep them away from aircraft in the pattern for the correct runway. In hindsight; I should not have departed until I saw them actually turning away from the airport; instead of believing their radio call.

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Original NASA ASRS Text

Title: A flight instructor reported an airborne conflict during a stop-and-go takeoff with another training aircraft performing an opposite direction missed approach maneuver.

Narrative: My student and I were in the VFR traffic pattern for runway 31. The winds were favoring 31 and there was another VFR aircraft in the pattern. There was an instrument training flight shooting a VOR approach to runway 13. We were coming to a stop on 31 for a stop and go and I asked if the instrument airplane was going to be missed to the west soon right before we took off; and he said he was about to turn to heading 250 and climb to 3000 feet. We announced on CTAF that we were taking off on 31 for left closed traffic and nobody had any reaction. I was instructing my student through the takeoff and right after we lifted off I looked up and saw the instrument airplane a few hundred feet off of the ground approaching the departure end of 31 (near the numbers of 13) and they were at about our 10 o'clock (the VOR approach for 13 is slightly crooked). I took controls and maneuvered our airplane and the instrument airplane did the same and we both avoided each other; but came relatively close. The other airplane did a very steep turn and continued on their approach and came over the radio telling us that their approach took them there. They then went missed and departed the area and we stayed in the pattern. My suggestion is for instrument training aircraft doing opposite direction approaches to respect airplanes that are already in the pattern at that airport. If they want to shoot the full approach; consider making up a number for minimums at a higher altitude that will keep them away from aircraft in the pattern for the correct runway. In hindsight; I should not have departed until I saw them actually turning away from the airport; instead of believing their radio call.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.