Texan T6/Harvard (Antique)
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Rotorcraft
Flight Crew Last 90 Days 70; Flight Crew Total 900; Flight Crew Type 325
Communication Breakdown; Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Conflict NMAC; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors; Procedure
Training flight working in the MOA. In comms with ZZZ Center; but operating VFR within the bounds of our assigned MOA block. We were executing a variety of contact maneuvers between 12;000-17;999 MSL; including basic air work; out of control flight; and unusual attitudes. We were monitoring the assigned ZZZ center frequency; but were not able to pay close attention due to focus on the training maneuvers. At one point I heard a civilian aircraft being advised that they were filing a flight plan through an active MOA; but did not hear the aircraft's response. I heard multiple company aircraft checking in for the MOA; including blocks adjacent to mine. Immediately before the NMAC; I set up my student for a nose-low unusual attitude recovery maneuver. I noted a TCAS contact; but it was on a depicted section line for the MOA; so I dismissed the contact as company traffic with the expectation they would be deconflicted through SOP adherence. As we entered a significant nose-low descent for training; we received another traffic advisory; very close to us. We executed a 5G pull and turn for avoidance. Our indicated altitude dropped below the contact. I'd estimate we came within 100 feet of the conflict; though I did not get visual on the other aircraft. Center called us and asked if we had to execute a significant evasive maneuver; and advised that the conflict had been a civilian multi engine aircraft. The controller was apologetic for not providing a traffic call to us; though due to how dynamic our training maneuver was; I don't believe the controller could have anticipated the severity of the conflict.
Texan T6/Harvard pilot reported taking evasive action during a training flight in response to a NMAC with a aircraft that entered their MOA block.