USCGC Anthony Petit | |
History | |
---|---|
United States | |
Name | Anthony Petit |
Namesake | The keeper of the Scotch Cap lighthouse |
Operator | US Coast Guard |
Builder | Marinette Marine Corporation |
Launched | 30 January 1999 |
Homeport | Ketchikan, Alaska |
Identification |
|
Status | Active |
General characteristics | |
Type | Keeper-class buoy tender |
Displacement | 850 long tons (864 t) full load |
Length | 175 ft (53.3 m) |
Beam | 36 ft (11.0 m) |
Draft | 8 ft (2.4 m) |
Installed power | 2,000 hp (1,500 kW) sustained |
Propulsion | 2 × Caterpillar 3508 DITA Diesel engines; bow thruster, 500 hp (373 kW) |
Speed | 12 knots (22 km/h; 14 mph) |
Range | 2000 nautical miles at 10 kn |
Crew | 24 (2 Officers, 22 Enlisted) |
USCGC Anthony Petit (WLM-558) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she has served her entire career maintaining navigational aids in Southeast Alaska. She is assigned to the Seventeenth Coast Guard District. [1]
Anthony Petit was built by Marinette Marine Corporation in Marinette, Wisconsin. She was the eighth of the fourteen Keeper-class vessels completed. On 22 June 1993 the Coast Guard awarded the contract for the Keeper class vessels in the form of a firm contract for the lead ship and options for thirteen more. [2] In February 1997, it exercised options for the 5th through the 10th vessels, including Anthony Petit. [3] The ship was launched on 30 January 1999, into the Menominee River. Speakers at the christening ceremony included Alaska Senator Frank Murkowski, and Coast Guard Commandant Admiral James Loy. [4]
Her hull was built of welded steel plates. She is 175 feet (53 m) long, with a beam of 36 feet (11 m), and a full-load draft of 8 feet (2.4 m). [5] Anthony Petit displaces 850 long tons fully loaded. [6] Her gross register tonnage is 904, and her net register tonnage is 271. [7] The top of the mast is 58.75 feet (17.91 m) above the waterline. [8]
Rather than building the ship from the keel up as a single unit, Marinette Marine used a modular fabrication approach. Eight large modules, or "hull blocks" were built separately and then welded together. [5]
The ship has two Caterpillar 3508 DITA (direct-injection, turbocharged, aftercooled) 8-cylinder Diesel engines which produce 1000 horsepower each. These drive two Ulstein Z-drives. Keeper-class ships were the first Coast Guard cutters equipped with Z-drives, which markedly improved their maneuverability. The Z-drives have four-bladed propellers which are 57.1 inches (145 cm) in diameter [8] and are equipped with Kort nozzles. They can be operated in "tiller mode" where the Z-drives turn in the same direction to steer the ship, or in "Z-conn mode" where the two Z-drives can turn in different directions to achieve specific maneuvering objectives. An implication of the Z-drives is that there is no reverse gear or rudder aboard Anthony Petit. In order to back the ship, the Z-drives are turned 180 degrees which drives the ship stern-first even though the propellers are spinning in the same direction as they do when the ship is moving forward. [9] Her maximum speed is 12 knots. [5] Her tanks can hold 16,385 gallons of diesel fuel [8] which gives her an unrefueled range of 2,000 nautical miles at 10 knots. [10]
She has a 500 horsepower bow thruster. The Z-drives and bow thruster can be linked in a Dynamic Positioning System. This gives Anthony Petit the ability to hold position in the water even in heavy currents, winds, and swells. This advanced capability is useful in bringing buoys aboard that can weigh more than 16,000 lbs. [6]
Electrical power aboard is provided by three Caterpillar 3406 DITA generators which produce 285 Kw each. [6] She also has a 210 Kw emergency generator, which is a Caterpillar 3406 DIT. [8]
The buoy deck has 1,335 square feet (124.0 m2) of working area. A crane with a boom 42 feet (13 m) long lifts buoys and their mooring anchors onto the deck. The crane can lift up to 20,000 pounds (9,100 kg). [6]
The ships' fresh water tanks can hold 7,339 gallons. [8] She has three ballast tanks that can be filled to maintain their trim, and tanks for oily waste water, sewage, gray water, new lubrication oil, and waste oil. [8]
Accommodations were designed for mixed gender crews from the start. Crew size and composition has varied over the years. When she was commissioned in 1999, she had a crew of 23, commanded by a Chief Warrant Officer. [11]
Anthony Petit, as all Keeper-class ships, has a strengthened "ice belt" along the waterline so that she can work on aids to navigation in ice-infested waters. Not only is the hull plating in the ice belt thicker than the rest of the hull, but framing members are closer together in areas that experience greater loads when working in ice. Higher grades of steel were used for hull plating in the ice belt to prevent cracking in cold temperatures. Her bow is sloped so that rather than smashing into ice, she ride up over it and break it with the weight of the ship. Anthony Petit is capable of breaking flat, 9-inch thick ice at 3 knots. [9]
The ship carries a cutter boat on davits. She was originally equipped with a CB-M boat which was replaced in the mid-2010s with a CB-ATON-M boat. This was built by Metal Shark Aluminum Boats and was estimated to cost $210,000. [12] The boat is 18 feet (5.5 m) long and are equipped with a Mercury Marine inboard/outboard diesel engine. [13]
The ship's namesake is U.S. Coast Guard Chief Boatswain's Mate Anthony Petit, the keeper of the Scotch Cap lighthouse on the west end of Unimak Island in the Aleutians. Petit and four other members of his crew were killed in a tsunami which destroyed the lighthouse on April 1, 1946. [14]
After her launch and sea trials, Anthony Petit sailed down the Great Lakes, the Saint Lawrence Seaway, and through the Panama Canal to reach Ketchikan, Alaska, her homeport for her entire career. She arrived in January 2000. [15] The ship is stationed at Coast Guard Base Ketchikan. She replaced USCGC Planetree at this station. [16] Her primary mission is maintaining 274 fixed and floating aids to navigation in Southeast Alaska. [17]
The ship has also performed other Coast Guard missions. Anthony Petit participated in search and rescue activities as with the charter boat Fishin' Fool in 2002, [18] fishing vessel Yvonne Denise in 2005, [19] the ferry Lituya in 2009, [20] and the fishing vessel Tsimshian Lady in 2017. [21]
Anthony Petit has trained extensively on oil spill containment. She has participated in several joint United States-Canada exercises to prepare for a possible spill in the Dixon Entrance area. She has deployed the vessel of opportunity skimming system (VOSS) several times in training. [22] [23] [24]
The Keeper class of coastal buoy tenders consists of fourteen ships built for and operated by the United States Coast Guard. The ships were launched between 1995 and 1999 and all remain in active service. Their primary mission is to maintain thousands of aids to navigation, both buoys and land-based. Their secondary missions include marine environmental protection, search and rescue, law enforcement, and light ice-breaking.
USCGC Spar (WLB-206) is a United States Coast Guard Juniper-class seagoing buoy tender home-ported in Duluth, Minnesota. The ship maintains aids to navigation in the Twin Ports and Great Lakes.
USCGC Maple (WLB-207) is a Juniper-class seagoing buoy tender operated by the United States Coast Guard. She was based at Sitka, Alaska for 16 years and is currently homeported at Atlantic Beach, North Carolina. Her primary mission is maintaining aids to navigation, but she also supports search and rescue, law enforcement, oil spill response, and other Coast Guard missions.
USCGC Fir (WLB-213) is a Juniper-class cutter of the United States Coast Guard. USCGC Fir is under the Operational Control (OPCON) of the Commander of the Thirteenth Coast Guard District and is homeported in Astoria, Oregon. Fir's primary area of responsibility is the coastal waters, river bars and high seas of the Washingtonian and Oregonian coasts. USCGC Fir conducts heavy lift aids to navigation operations, law enforcement and other missions as directed.
USCGC Elm (WLB-204) is a U.S. Coast Guard Juniper-class seagoing buoy tender home-ported in Astoria, Oregon. She is responsible for maintaining aids to navigation on the coasts of Oregon and Washington, including the Columbia River.
USCGC Sycamore (WLB-209) is a United States Coast Guard seagoing buoy tender, the second of her name and the ninth of the Juniper-class. She is now home-ported in Newport, Rhode Island, following a one year long Midlife Maintenance Availability (MMA) in Baltimore, Maryland. She was originally home-ported in Cordova, Alaska. Sycamore primarily tends to aids-to-navigation (ATON) in Martha's Vineyard, the Long Island Sound, Hudson River, and New York City Harbor and entrances; however she is also responsible for maintenance support of National Data Buoy Center's offshore weather buoys. In addition to her primary ATON role, Sycamore also performs other duties, such as, marine environmental protection, maritime law enforcement, domestic icebreaking, search and rescue, and homeland security missions.
USCGC Henry Blake (WLM-563) is a United States Coast Guard Keeper-class cutter based at Naval Station Everett in Everett, WA. Henry Blake's primary mission is the maintenance of 80 lighted, 39 unlighted, and 65 shore-based aids to navigation in the Puget Sound area and along the coast of Washington. Secondary missions include marine environmental protection, search and rescue, and homeland security. Henry Blake is assigned to the Thirteenth Coast Guard District.
USCGC Kukui (WLB-203) is the third cutter in the Juniper-class 225 ft (69 m) of seagoing buoy tenders and is the third ship to bear the name. She is under the operational control of the Commander of the Seventeenth Coast Guard District and is home-ported in Sitka, Alaska. Her primary area of responsibility is the inland and coastal waters of southeastern Alaska. Kukui conducts heavy lift aids-to-navigation operations, and law enforcement, homeland security, environmental pollution response, and search and rescue as directed.
Coast Guard Base Ketchikan is a major shore installation of the United States Coast Guard located in Ketchikan, Alaska. The base is a homeport for two Sentinel-class cutters and a buoy tender, and is the only Coast Guard dry dock in the state. Located one mile south of the city's downtown area along the southwestern shore of Revillagigedo Island, the base was originally established in 1920 to support the United States Lighthouse Service and became part of the Coast Guard in 1940. In addition to the homeported cutters, Base Ketchikan's maintenance facilities support forward-deployed cutters throughout Southeast Alaska, in Petersburg, Juneau and Sitka.
USCGS Katherine Walker (WLM-552) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1996, she has spent her entire career homeported at Bayonne, New Jersey. Her primary mission is to maintain 335 aids to navigation in New York Harbor, Long Island Sound, and surrounding waters. She is assigned to the First Coast Guard District.
USCGC Ida Lewis (WLM-551) is the lead ship of the United States Coast Guard Keeper-class of Coastal Buoy Tenders. Launched in 1995, she has spent her entire career maintaining navigational aids near her homeport of Newport, Rhode Island. Ida Lewis is assigned to the First Coast Guard District.
USCGC Marcus Hanna (WLM-554) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1997, she is home-ported in South Portland, Maine. Her primary mission is maintaining 376 aids to navigation from Boston to St. John's Bay, Maine. Secondary missions include marine environmental protection, light icebreaking, search and rescue, and security. She is assigned to the First Coast Guard District.
USCGC Abbie Burgess (WLM-553) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1997, she is home-ported in Rockland, Maine. Her primary mission is maintaining 366 aids to navigation from Boothbay Harbor, Maine to the Canadian border. Secondary missions include marine environmental protection, light icebreaking, search and rescue, and security. She is assigned to the First Coast Guard District.
USCGC James Rankin (WLM-555) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1998, she is home-ported at the Coast Guard Yard in Baltimore, Maryland. Her primary mission is maintaining 361 aids to navigation in Upper Chesapeake Bay and its tributaries including the Eastern Shore of Maryland, the Potomac River, and the Annapolis area. Secondary missions include marine environmental protection, light icebreaking, search and rescue, and security. She is assigned to the Fifth Coast Guard District.
USCGC Frank Drew (WLM-557) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1998, she is home-ported in Portsmouth, Virginia. Her primary mission is maintaining over 300 aids to navigation in lower Chesapeake Bay, the rivers that flow into it, and a potion of the North Carolina Coast. Secondary missions include marine environmental protection, light icebreaking, search and rescue, and security. She is assigned to the Fifth Coast Guard District.
USCGC George Cobb (WLM-564) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she is home-ported in San Pedro, California. Her primary mission is maintaining over 178 floating aids to navigation on the California coast from San Francisco to San Diego. Secondary missions include marine environmental protection, search and rescue, and security. She is assigned to the Eleventh Coast Guard District.
USCGC William Tate (WLM-560) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she is home-ported in Philadelphia, Pennsylvania. Her primary mission is maintaining over 260 aids to navigation on the Delaware River, in Delaware Bay and in nearby waterways. Secondary missions include marine environmental protection, search and rescue, and security. She is assigned to the Fifth Coast Guard District.
USCGC Maria Bray (WLM-562) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she is home-ported in Atlantic Beach, Florida. Her primary mission is maintaining over 300 aids to navigation from Georgetown, South Carolina to Fort Pierce, Florida. Secondary missions include marine environmental protection, search and rescue, and security. She is assigned to Sector Jacksonville of the Seventh Coast Guard District.
USCGC Harry Claiborne (WLM-561) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she is home-ported in Galveston, Texas. Her primary mission is maintaining aids to navigation between the Mexican boarder and the mouth of the Mississippi River. Secondary missions include marine environmental protection, search and rescue, and security. She is assigned to the Eighth Coast Guard District.
USCGC Barbara Mabrity (WLM-559) is a Keeper-class coastal buoy tender of the United States Coast Guard. Launched in 1999, she is home-ported in Mobile, Alabama. Her primary mission is maintaining aids to navigation from western Florida to the Mississippi River. Secondary missions include marine environmental protection, search and rescue, and security. She is assigned to the Eighth Coast Guard District.