Air navigation chart V30 (series). 25. Lat. 29° N-45° N, long. 32° E-O°. Scale 1″=30 naut. m. (1:2,188,800) at lat. 37°30], contour interval 1,000, 2,000, 3,000, 5,000, 7,000, 9,000 and 12,000 ft.