Small Aircraft
Flight Crew Flight Instructor; Flight Crew Instrument
Flight Crew Last 90 Days 60; Flight Crew Total 5000; Flight Crew Type 200
ATC Issue All Types; Conflict Airborne Conflict; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control
Procedure; Staffing; Human Factors
While executing the published missed approach for the Practice VOR approach at TUS Runway 11 left; Aircraft Y departed on Runway 11 flew under the Aircraft X and continued a climb to their departure altitude. The Aircraft X encountered wake turbulence from the departing Aircraft Y at approximately the VOR location; recovered; and continued with the missed approach procedure.Extenuating circumstances were that the Tower at TUS was closed due to staffing issues; and the TRACON was handling IFR and VFR traffic into and departing from TUS. We had no direct radio contact with the departing air carrier before; or after their departure. If the Tower had been open instructions to us or to the air carrier would have prevented this close encounter.
Small aircraft flight Instructor reported encountering wake turbulence from a departing air carrier that passed below them as they were executing a practice missed approach.  Reporter stated Tower was closed at the time because of staffing issues.