What capability does a CVN primarily provide?

A CVN, or nuclear-powered aircraft carrier, primarily provides the capability for fixed wing air operations. This is because a CVN serves as a floating airbase, equipped with a flight deck specifically designed for launching and recovering aircraft. The primary role of these carriers is to project air power, deliver strike capabilities, and support a wide range of missions through the use of fighter jets, bombers, and reconnaissance aircraft.

The design and function of a CVN emphasize its role in air operation, wherein it can deploy various types of aircraft to conduct air superiority, ground attack, and antisubmarine warfare, among others. This allows for significant flexibility and reach in military operations, making it an essential asset in naval warfare.

In contrast, the other options represent different roles in naval operations. Fast attack focuses on the capabilities of attack submarines, which are more stealthy and designed for different kinds of missions. Submarine operations specifically relate to the engagement strategies employed by submarines, including stealth and tactical strikes. Cargo transport is about moving supplies and equipment, which while critical, does not utilize the primary function of an aircraft carrier. Thus, the CVN's capability to support fixed wing air operations stands out as its most significant contribution.