It was June 20, 1944, 1900 hours (7:00 PM), in a tropical sky, 450 nautical miles northwest of Guam. We were at 16,000 feet. In the cockpit, the sun was still shining brilliantly. On the surface, daylight was turning to dusk, and the large Japanese carrier, Zuikaku, was maneuvering frantically at flank speed in anticipation of the forthcoming attack. We would have preferred to be at 18,000 feet or higher to reduce further the danger of the intense...