On a North Pacific voyage, you wish to sail the shortest distance from LAT 46°05'N, LONG 124°00'W to LAT 44°00'N, LONG 150°00'E. You do not want to exceed 50°N latitude due to anticipated fog conditions. Which voyage plot meets these requirements? (Use gnomonic tracking chart WOXZC 5270)

Correct Answer: Option A — A great circle to 50°N, 153°W, parallel sailing to 50°N, 173°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 parallel, following the parallel, and then taking a final great circle to the destination, the vessel maintains safety while minimizing the total distance traveled.