Which type of landing craft does an LCAC primarily support?

An LCAC, or Landing Craft Air Cushion, primarily supports hovercraft landing craft. This is because LCACs are specifically designed to operate over various terrains, including shallow coastal waters and beaches, while providing the capability to transport personnel and vehicles quickly and efficiently.

LCACs utilize a cushion of air to hover above the water and land surfaces, allowing them to bypass obstacles and reach shorelines that might be inaccessible for traditional landing craft. Their design enables them to achieve high speeds and maneuverability, which are essential when supporting military operations that require rapid deployment of assets.

While conventional landing crafts may share some similarities, they rely on a different operational mechanism, typically using a flat-bottom design for beach landings rather than the air-cushion technology that defines hovercraft. Thus, the primary operational function of an LCAC is to support hovercraft, making it the correct answer.