Essential Functions and Responsibilities: Conducts training using devices, such as the Weapon System Trainer (WST), the C-17 aircraft, Computer-Based Trainers (CBT), and other ground training for all C-17 TS pilots in air drop, aerial refueling/transport operating procedures, including diagnosis and remediation of student problems. Position Purpose: The Pilot Instructor is responsible for the accomplishment of ground-based training of C‑17 pilots, including instructing and measuring training progress of crewmembers who train in the established Training System (TS) curriculum.