Which aircraft serves the United States Marine Corps in a utility capacity and is known as the Iroquois?

The Iroquois is a nickname commonly associated with the Huey helicopter, which specifically refers to the Bell UH-1 series of helicopters. The UH-1N was a variant of the original Huey helicopter used by the United States Marine Corps and other branches. It has served in various roles, including utility transport, medevac, and close air support.

The UH-1N is characterized by its tandem rotor blades and versatility, which allows it to be used effectively in a wide range of missions, aligning well with its utility design. Though upgrades and newer models like the UH-1Y Venom exist, the UH-1N remains part of the reliable legacy of the Iroquois.

The other aircraft listed, such as the UH-1Y Venom and the UH-3H Sea King, while also serving utility roles, do not carry the Iroquois name. The SH-60F Seahawk is primarily a naval helicopter designed for anti-submarine warfare and does not fulfill the utility aspect attributed to the Iroquois nickname.