In planning a North Pacific voyage, you wish to steam the minimum distance from LAT 48°30'N, LONG 124°45'W to LAT 44°00'N, LONG 150°00'E, while remaining south of 51°N latitude. Which track meets these requirements? (Use gnomonic tracking chart WOXZC 5270)

Question

In planning a North Pacific voyage, you wish to steam the minimum distance from LAT 48&deg;30'N, LONG 124&deg;45'W to LAT 44&deg;00'N, LONG 150&deg;00'E, while remaining south of 51&deg;N latitude. Which track meets these requirements? (Use gnomonic tracking chart WOXZC 5270)

Accepted Answer

Option C: A great circle from departure to LAT 51&deg;N, LONG 148&deg;W, parallel sailing to LAT 51&deg;N, LONG 171&deg;W, then a great circle to arrival. Composite sailing is the standard method for restricting a great circle track to a specific limiting latitude. By sailing a great circle to the limiting latitude, following the parallel, and then taking a great circle to the destination, you achieve the shortest distance while adhering to safety constraints.

In planning a North Pacific voyage, you wish to steam the minimum distance from LAT 48&deg;30'N, LONG 124&deg;45'W to LAT 44&deg;00'N, LONG 150&deg;00'E, while remaining south of 51&deg;N latitude. Which track meets these requirements? (Use gnomonic tracking chart WOXZC 5270)

In planning a North Pacific voyage, you wish to steam the minimum distance from LAT 48°30'N, LONG 124°45'W to LAT 44°00'N, LONG 150°00'E, while remaining south of 51°N latitude. Which track meets these requirements? (Use gnomonic tracking chart WOXZC 5270)