What is the designation of the attack helicopter used by the United States Marine Corps known as the COBRA?

The designation of the attack helicopter referred to as the COBRA in the United States Marine Corps is AH-1W. This particular variant of the COBRA helicopters has been specifically designed for light attack missions and is heavily armed to provide close air support. The AH-1W is a modernized version of the earlier AH-1 models and features advanced avionics, weapons systems, and improved performance capabilities.

The AH-1Z is also a variant of the COBRA, but it is the newer version of the helicopter that offers enhanced capabilities, including fly-by-wire technology and improved weapons systems. While it plays a crucial role in modern Marine Corps operations, the specific designation for the earlier model known as the COBRA is AH-1W.

The MH-60R/S are multi-mission helicopters primarily used for search and rescue, anti-surface warfare, and anti-submarine warfare, while the MV-22B is a tiltrotor aircraft designed for transport, not attack purposes. Therefore, these options do not pertain to the specifications of the COBRA helicopter.