Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Flight Crew Commercial; Flight Crew Glider
Flight Crew Last 90 Days 50; Flight Crew Total 3000; Flight Crew Type 25
Communication Breakdown
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Airspace Structure; Human Factors; Procedure
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.
Tow plane pilot reported a near mid air collision with an aircraft while climbing with glider in-tow.