Hamilton-class

Summary

Description

The Hamilton-class cutter was a prominent class of vessels in the United States Coast Guard, identified by the hull classification symbol WHEC. These cutters were named after Alexander Hamilton, the first Secretary of the Treasury, and were also referred to as the "Secretary class." While most were named after former Treasury Secretaries, there were exceptions like the "Hero-class cutters."

Their design emphasized versatility to enable a wide range of operations such as maritime law enforcement, search and rescue, oceanographic research, and defense operations. They leveraged a combined diesel or gas (CODOG) propulsion system with two diesel engines and two gas turbines, making them the first U.S. military vessels to offer such a combination. This class of cutters integrated helicopter deployment capabilities through a flight deck and retractable hangar. The hull was crafted with a V cross-section, intended to offer greater survivability and floatation post-damage.

The Hamilton-class cutters possessed significant firepower from the outset, suited for Cold War anti-submarine warfare (ASW). Initial armament included a 5"/38 naval gun, mortars, machine guns, Hedgehogs, torpedo tubes, and torpedo countermeasures. The anticipated threat of the Soviet Union during their creation meant they were designed to track and neutralize underwater threats.

Through the 1980s and 1990s, these cutters underwent modernization under the Fleet Rehabilitation and Modernization (FRAM) program, encompassing upgrades to armament—like the replacement of the 5"/38 gun with a MK 75 76mm gun—and the installation of combat systems such as the AN/SLQ-32. Harpoon anti-ship missiles and a Phalanx CIWS were added later, though these measures were rolled back post-Cold War due to the diminished military threat.

Operational history highlights involvement in several conflicts and operations. They served during the Vietnam War, participating in Operation Market Time, among other global engagements including Operations Urgent Fury, Vigilant Sentinel, Deny Flight, and Iraqi Freedom. The Hamilton and Sherman cutters are known for the 2007 interception of a drug shipment with a significant street value.

After serving the U.S. Coast Guard, several vessels of this class were transferred to international navies, enhancing the maritime capabilities of Bangladesh, Nigeria, the Philippines, Sri Lanka, and the Vietnam Coast Guard. The class was eventually replaced by the more advanced Legend-class cutter.

Technical specifications