What is the name of the attack helicopter designated as Viper in the Marine Corps?

The attack helicopter designated as Viper in the Marine Corps is the AH-1Z. This aircraft is a modernized and advanced variant of the AH-1 Cobra family, specifically designed for comprehensive ground support and attack missions. It boasts enhanced avionics, an upgraded weapons system, and increased flight performance compared to its predecessors.

The AH-1Z features advanced capabilities such as a four-bladed rotor system, enhanced sensors, and improved firepower, making it a crucial asset in the Marine Corps' aviation unit. Its designation as "Viper" reflects its agility and effectiveness on the battlefield, emphasizing its role in fast-paced combat scenarios.

The other options refer to different types of aircraft that serve various functions within the Marine Corps and Navy. The AH-1W is an earlier variant of the Cobra, while CH-53D and MH-60R are transport and multi-role helicopters, respectively, and do not fit the classification of an attack helicopter known as "Viper."