Long range air navigation chart V70 (series). 10. Lat 30° N-65° N, long. 5° E-80°W. Scale 1 in.=70 naut. m. (1:5,107,200) at lat. 47° N, contour interval 1,000, 3,000, 5,000, 7,000, 10,000, 15,000 ft.