Narrative:

After a touch-and-go landing at dlz (elevation 945 MSL) using runway 28; our aircraft was on the left crosswind leg of a left traffic pattern at 700 AGL (1600 MSL) climbing to 1800 MSL when another aircraft announced they were entering the left downwind to runway 28 at dlz over the quarry. The quarry they were referring to is within 1 nm due west of the airport; directly in the departure path of runway 28. Being familiar with this airport this made us nervous as their report of a non-standard entry directly into downwind would put them very close to our position on climbout.when we rolled wings level while climbing on a heading of 190; I was able to see the aircraft out the right side of the front windshield closing fast co-altitude. We established a max rate of climb and continued on the 190 heading so I; sitting in the right front seat; was able to maintain visual contact with the other aircraft. The other aircraft appeared to pass under our tail in close proximity. I have a GPS and barometric altitude track for the event generated by my garmin D2 bravo watch that can verify our position; altitude; and maneuvers.

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Original NASA ASRS Text

Title: Instructor pilot reported experiencing a near miss event in the landing pattern at an uncontrolled airport.

Narrative: After a touch-and-go landing at DLZ (elevation 945 MSL) using runway 28; our aircraft was on the left crosswind leg of a left traffic pattern at 700 AGL (1600 MSL) climbing to 1800 MSL when another aircraft announced they were entering the left downwind to runway 28 at DLZ over the quarry. The quarry they were referring to is within 1 nm due west of the airport; directly in the departure path of runway 28. Being familiar with this airport this made us nervous as their report of a non-standard entry directly into downwind would put them very close to our position on climbout.When we rolled wings level while climbing on a heading of 190; I was able to see the aircraft out the right side of the front windshield closing fast co-altitude. We established a max rate of climb and continued on the 190 heading so I; sitting in the right front seat; was able to maintain visual contact with the other aircraft. The other aircraft appeared to pass under our tail in close proximity. I have a GPS and barometric altitude track for the event generated by my Garmin D2 Bravo watch that can verify our position; altitude; and maneuvers.

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.