Air navigation charts, V30 (series). V30-31. Lat. 14° N-30° N, long. 154° W-178° W. Scale 1″=30 naut. m. (1:2,188,800) at lat. 22°30′, contour interval 1,000, 2,000, 3,000, 5,000, 7.0OO, 9,000 and 12,000 ft.