How fast can an LHD travel?

An amphibious assault ship, designated as an LHD (Landing Helicopter Dock), is capable of impressive speeds in maritime operations. The correct answer reflects that most LHDs are designed to travel at speeds exceeding 20 knots, which is crucial for rapid deployment and maneuverability during amphibious operations. This speed allows them to effectively carry out missions that include launching and recovering landing craft and helicopters, supporting Marine Corps amphibious operations, and responding quickly to various contingencies at sea.

As for the other answers, while LHDs may be able to travel at those speeds under certain conditions, they generally have the capability to exceed 20 knots, making the first choice the most accurate representation of their operational speed.