Air navigation chart V30 (series). 56. Lat. 14° S-1° N, long. 128° E-103° E. Scale 1 in.=30 naut. m. (1:2,188,800) lat. 2 2° 30′, contour interval 1,000, 2,000, 3,000, 5,000, 7,000, 9,000 and 12,000 ft.