Just as the flying boat seemed about to hit the gorges he gave one final, desperate, heave on the yoke and she finally broke a few inches free from the water. The California Clipper flew forward over the rim of the gorge. Without the benefit of the ground effect that had allowed her to break free of the surface, she immediately plunged down into the rocky defile below, curving out just above the water once again. The plane was now racing along just a few feet above the water through the narrow rock walls of the Congo valley. With her...