API 1 defines which positions?

• A. Navigator/CSO combat systems operators or observer
• B. Flight Surgeon
• C. Pilot positions used primarily for in-flight duty
• D. Staff supervisor at wing level

Answer: (C)

The concept here is about which aircrew roles API 1 officially categorizes as in-flight duty positions. API 1 defines positions that are used by pilots during flight operations—those who actually pilot the aircraft and are primarily involved in in-flight duties.

That’s why the option describing pilot positions used primarily for in-flight duty is the best fit. It matches the idea of roles that are active during flight and directly related to piloting responsibilities, rather than support, medical, or supervisory functions.

The other options describe roles not defined as in-flight pilot positions: a Flight Surgeon is a medical role, a staff supervisor is administrative leadership, and Navigator/CSO/observer are aircrew roles but not their pilots’ positions.