in the mid-1950s, the navies of the world were faced with the challenge of how to land a large helicopter on a rolling, pitching flight deck of a smaller ship. the problem was solved in the early 1960s when the royal canadian navy's experimental squadron 10 (vx 10), based at shearwater, in collaboration with dartmouth's fairey aviation, developed the world's first hhrsd. the ch-124 sea king was the first royal canadian navy helicopter to be equipped with this system.