Narrative:

Departed 7s5 runway 34 with glider in tow; announced departure and routine cautionary message of: (tow plane and glider departing 34 using non-standard right hand traffic pattern. Power[ed] traffic please use published left hand traffic pattern). Turning to right down wind a small [powered] aircraft emerged from under my raised left wing passing over the canopy at an estimated range of 100 ft.spoke with the pilot of the [small powered aircraft] who stated he saw the tow plane and glider climbing out of the airport but could not determine our intended direction of flight. Pilot also stated he did not hear our radio announcement as we departed the airport.7s5 is a rural uncontrolled airpark community with a glider operating opposite the published traffic pattern for safe separation of glider and power[ed] traffic. A recommended corrective action: practicing a greater situational awareness to potential air traffic.

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Original NASA ASRS Text

Title: Tow plane pilot reported a near mid air collision with an aircraft while climbing with glider in-tow.

Narrative: Departed 7S5 Runway 34 with glider in tow; announced departure and routine cautionary message of: (Tow plane and glider departing 34 using non-standard right hand traffic pattern. Power[ed] traffic please use published left hand traffic pattern). Turning to right down wind a small [powered] aircraft emerged from under my raised left wing passing over the canopy at an estimated range of 100 ft.Spoke with the pilot of the [small powered aircraft] who stated he saw the tow plane and glider climbing out of the airport but could not determine our intended direction of flight. Pilot also stated he did not hear our radio announcement as we departed the airport.7S5 is a rural uncontrolled airpark community with a glider operating opposite the published traffic pattern for safe separation of glider and power[ed] traffic. A recommended corrective action: Practicing a greater situational awareness to potential air traffic.

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.