Transforming Operational and Medical Confidentiality with the Reliance-Class Cutter

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The United States Coast Guard (USCG) operates a fleet of 16 medium endurance cutters known as the Reliance class. These 210-foot vessels play a crucial role in safeguarding the nation’s maritime interests, with different assignments across the Atlantic Ocean, Gulf of Mexico, and the Pacific Ocean.

Among the 16 cutters, 11 are stationed in the Atlantic Ocean and Gulf of Mexico, primarily engaged in various maritime law enforcement and search and rescue missions. The remaining three cutters are assigned to the Pacific, where they also focus on similar missions. Unfortunately, two Reliance class cutters, namely the USCGC Courageous (WMEC-622) and Durable (WMEC-628), were decommissioned in September 2001.

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The inaugural vessel of this class, the USCGC Reliance (WMEC-615), was built at the Todd Shipyards in Seattle, Washington, and officially entered service in June 1964. Subsequently, the Todd yards constructed the next two cutters, WMEC-616 and WMEC-617. The WMEC-618 was built at the Cristy Corporation yard, while the Coast Guard yards in Baltimore, Maryland, oversaw the construction of WMECs 619-620 and 628-630. Lastly, WMECs 621-627 were constructed at the American Shipbuilding Company yard.

The final vessel of the Reliance class, the USCGC Alert (WMEC-630), was commissioned in August 1969. These 210-foot cutters were designed with the specific purpose of fulfilling open ocean search and rescue missions. Notably, they boast a high degree of crew comfort, with all living spaces, except the engine room, being air-conditioned. Moreover, the pilothouse offers an unobstructed 360-degree view, enhancing visibility during operations. To minimize smoke interference on the flight deck during flight operations, exhaust gases were channeled out the stern.

Starting in 1986, all 16 cutters underwent Major Maintenance Availability (MMA) overhauls. These extensive upgrades aimed to standardize propulsion systems, with all ships being equipped with two Alco 16V-251 diesel engines. Additionally, the overhaul included re-routing exhaust gases into a more conventional, less problematic vertical stack arrangement located aft of the pilothouse. Furthermore, electronic systems received updates and modifications, with the SPS-73 radar replacing the SPS-64(V)1 radar, and the original 3-inch Mk 75 cannon being replaced by a 25mm Mk 38 Bushmaster cannon. Each MMA overhaul incurred a cost of approximately $20 million per ship, a substantial increase compared to the original construction cost of $3.5 million per vessel. The final MMA overhaul was completed in August 1997, ensuring that the Reliance class cutters remained well-equipped to fulfill their vital roles in the US Coast Guard’s operations.

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