You are planning a voyage from Cape May (LAT 38°45'N, LONG 74°45'W) to Lisbon (LAT 38°37'N, LONG 09°45'W). Which of the following is TRUE? (Use gnomonic chart WOXZC 5274)

Question

You are planning a voyage from Cape May (LAT 38&deg;45'N, LONG 74&deg;45'W) to Lisbon (LAT 38&deg;37'N, LONG 09&deg;45'W). Which of the following is TRUE? (Use gnomonic chart WOXZC 5274)

Accepted Answer

Option A: The northern hemisphere vertex is approximately at longitude 42&deg;26'W.. Great circle navigation utilizes gnomonic charts where straight lines represent great circles. The vertex is the point of maximum latitude on the track. For the voyage between Cape May and Lisbon, the geometry of the spherical triangle dictates the vertex longitude is approximately 42°26'W.

You are planning a voyage from Cape May (LAT 38&deg;45'N, LONG 74&deg;45'W) to Lisbon (LAT 38&deg;37'N, LONG 09&deg;45'W). Which of the following is TRUE? (Use gnomonic chart WOXZC 5274)

You are planning a voyage from Cape May (LAT 38°45'N, LONG 74°45'W) to Lisbon (LAT 38°37'N, LONG 09°45'W). Which of the following is TRUE? (Use gnomonic chart WOXZC 5274)