DeepFlight Challenger point of each of the world's five oceans, the Mariana Trench of the Pacific Ocean (36,201 ft), the Puerto Rico Trench of the Atlantic Ocean (28,232 ft), the Diamantina Trench of the Indian Ocean (26,401 ft), South Sandwich Trench of the Southern Ocean (23,737 ft), and Molloy Deep of the Arctic Ocean (18,399 ft). The Cheyenne yacht will be used as the mothership for the dive efforts. It was planned that Branson would pilot the sub to the Puerto Rico Trench, while Chris Welsh would pilot it for the Mariana Trench dive. Virgin Oceanic had hoped to be the first
Ryukyu Trench margin right up to the northeastern Taiwan coastline, also without the existence of a dextral north-south trending fault. Ocean bottom seismography methods combined with earthquake studies of the Benioff zone constrain the dip angle of the Philippine Sea Plate along the Ryukyu trench. In the Northern part of the Ryukyu trench, the dip of the Philippine Sea Plate is shallow at shallow depth, reaching only about 11° in the first 50 km, and steeper at deeper depths, reaching 70° below about 70 km. In contrast, the slab dip in the central and southern parts of the Ryukyu trench is more