Pages from a U.S. Navy aviator's personal flight logbook, June 1943. The handwritten entries record daily training flights in the SNJ-4 advanced trainer and N3N primary trainer, logging solo and dual-instruction time as the pilot progressed through wartime flight training. Logbooks like this one provided the official, hour-by-hour record required for a naval aviator to qualify and advance through the training pipeline during World War II. Project: 218037