MACKINAW USCGC icebreaker-buoy-tender

Built as a icebreaker-buoy-tender under yard no 601 by Marinette Marine Corporation (MMC), Marinette, USA for the USA Coastguard.

Laid down: February 09, 2004.
Launched: April 2, 2005 under the name USCGC MACKINAW (WLBB-30), the name Mackinaw has its roots in the ancient Native American language of the Great Lakes. Specifically, it is derived from the word Michilimackinac in the Ojibwa language, meaning "Island of the Great Turtle." Both Mackinaw (the English derivation) and Mackinac (the French derivation where "ac" is pronounced "aw") are derived from this word and pronounced Mak'ino.
Displacement 3,500 ton, dim. 73 x 17.8 x 4.9m. (draught), length bpp. 69.9m.
The ship is powered by 3 Caterpillar Turbocharged V-12 engines that drive 2 ABB electric propulsion drives that deliver a combined 9,200 horsepower. They are Caterpillar 3612 engines, turning Kato Generators. Mackinaw has 3 MDG’s. Each producing about 3.5 Megawatts of electric power. Mackinaw has an integrated electric plant. This means that the main generators provide electric power for both propulsion (ABB Azipods) and ship’s electric services (everything else). Speed 16 knots.
Crew 9 officers and 46 enlisted.
Commissioned: June 10, 2006, Homeport: Cheboygan, Michigan IMO No 9271054.

WLBB: The W preceding the number of all Coast Guard ships since World War II signifies them as Coast Guard vessels. WLB is the Coast Guard’s designation for seagoing buoy-tenders. The L stands for load-bearing working boat, and the B specifies its size category (big). The LB designates this vessel as a big buoy-tender, and the last B stands for icebreaker.

USCGC MACKINAW (WLBB-30) is a 240-foot (73 m) vessel built as a heavy icebreaker for operations on the North American Great Lakes for the United States Coast Guard. IMO number: 9271054. She should not be confused with a namesake ship, the USCGC MACKINAW (WAGB-83), IMO number 6119534, which was decommissioned on June 10, 2006.
MACKINAW was delivered to the Coast Guard on November 18, 2005 and commissioned on June 10, 2006. In addition to her ice-breaking duties, the MACKINAW will also serve as an Aids to Navigation ship, able to perform the same duties as the Seagoing Buoy Tenders (WLB) of the Coast Guard fleet. Further, she can conduct law enforcement and search and rescue missions and can deploy an oil skimming system to respond to oil spill situations and environmental response. One of the MACKINAW's unique features in the US Coast Guard fleet is the use of two Azipod units, ABB's brand of electric azimuth thrusters, for her main propulsion. These, coupled with a 550 hp (410 kW) bow thruster, make the ship exceptionally maneuverable. The Azipod units also remove the need for a traditional rudder, as the thrusters can turn 360 degrees around their vertical axis to direct their thrust in any direction. The MACKINAW also lacks a traditional ship's steering wheel. Much of the ship’s technology, including the Azipod thrusters, is from Finnish Maritime Cluster. Additionally, the MACKINAW can continuously proceed through fresh water ice up to 32 inches (81 cm) thick at 3 knots or 14 inches (36 cm) at 10 knots. She can also break smooth, continuous ice up to 42 inches (107 cm) thick through ramming.

The MACKINAW got off to a rocky start before being commissioned. While en-route to her new home port of Cheboygan, Michigan, the MACKINAW struck a seawall in Grand Haven, Michigan on December 12, 2005. The accident caused a 10-foot (3.0 m) dent in the bow of the MACKINAW on her starboard side. Shortly after the accident, Captain Donald Triner, the commanding officer of the MACKINAW, was temporarily relieved of duty pending an investigation into the accident. The accident did not delay the ship's scheduled arrival in her new home port; she arrived on December 17, 2005. Captain Triner was later permanently relieved of duty and replaced by Captain Michael Hudson, who was replaced in turn by Commander John Little in April 2006. CDR Scott J. Smith assumed command in July 2008 and was relieved by CDR Michael J. Davanzo in Aug, 2011. In June 2014, CDR Vasilios Tasikas assumed command. In June 2017, CDR John Stone assumed command. The MACKINAW is stationed at Cheboygan, Michigan. It can be seen and toured at Grand Haven's Coast Guard Festival every summer. The ship was also featured on the television series Modern Marvels. Katmai Bay, stationed at Sault Ste. Marie, Michigan, helps the USCGC MACKINAW (WLBB-30) in ice breaking duties.
2019 In service.
https://en.wikipedia.org/wiki/USCGC_Mackinaw_(WLBB-30) en internet.
Guinea 2018 50000 FG sgMS?, scott?

In the margin you see a freefall lifeboat and a helicopter picking up survivors. I have been sailing on ships fitted with a freefall lifeboat and in my eyes she are the best system for a lifeboat to get safely and very quickly of a vessel.

Wikipedia gives for the freefall lifeboat:
Some ships have a freefall lifeboat stored on a downward sloping slipway normally on the stern of the vessel. These freefall lifeboats drop into the water when the holdback is released. Such lifeboats are considerably heavier as they are strongly constructed to survive the impact with water. Freefall lifeboats are used for their capability to launch nearly instantly, and high reliability in any conditions. Since 2006 they have been required on bulk carriers that are in danger of sinking too rapidly for conventional lifeboats to be released. Seagoing oil rigs are also customarily equipped with this type of lifeboat.

https://en.wikipedia.org/wiki/Lifeboat_(shipboard)
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TERRACOTTA SHIP MODEL and GHURAB

The full index of our ship stamp archive

TERRACOTTA SHIP MODEL and GHURAB

Postby aukepalmhof » Thu May 30, 2019 8:34 pm

1999 terracotta model.jpg
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1999 ghurab model .jpg
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In 1999 India issued two stamps of 3.00R to commemorate the National Maritime Day.

The stamp with the terracotta model of a sailboat was excavated from Lothal. The stamp gives the year 2200 BC and shows us two ships, one an inland vessel superimposed on an Indus seal. The vessel under sail is a seagoing vessel.
The terracotta models of a boat from Lothal and engravings on Indus seals give some idea of ships going to the sea. For inland waterways, flat-bottom boats of the type suggested by the terracotta models were used. Trade on the high seas and along the coast was possible because the ships were fitted with sails
https://busy.org/@royalmacro/evolution- ... episode-04

The other stamp shows us a “ghurab” a frigate in service by the Indian Maratha Navy. The stamp is designed after a painting from ca 1700.
The biggest naval ships were the ghurabs, usually with two and occasionally three masts. They ranged from 150 to 300 tons and there were always one or two ghurabs of about 40 tons. The ghurab can be compared to the British and Portuguese frigates of those days, bearing in mind that neither the ghurab nor any of the other Maratha naval ships were anywhere near as seaworthy as their European counterparts. As their main armaments, the ghurabs carried two big guns firing forward through their portholes cut in the bulkhead. These were from the nine to twelve-pounder guns. There were also twelve to sixteen other guns, from six to eight on each side, which fired shots of from six to nine pounds. Each ghurab carried 100-150 fighting men in addition to the crew.

Extended low bow with a straight stem, high poop ended in a square counter. Flush decked; foredeck not fixed to the sides to permit drainage in head seas. Inboard rudder. The three-masted vessels as seen on the stamp were rigged in the European manner with square sails on the forward 2 masts and a gaff mizzen.
Sweeps used in calms, employing as many as 50, with one man per sweep.
The vessel did have a light draught.

https://cogitoerigosum.wordpress.com/20 ... e-a-study/ Aak to Zumbra a Dictionary of the Worlds’s Watercraft.
India 1999 300R sg?, scott
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