USS G-4 (SS-26)
Encyclopedia
USS G-4 (SS-26) was a G-class
United States G class submarine
The G class submarines were a class of four United States Navy submarines. While the four G-boats were nominally all of a class, they differed enough in significant details that they are sometimes considered to be four unique boats, each in a class by herself....

 submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 of the United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

. While the four G-boats were nominally all of a class, they differed enough in significant details that they are sometimes considered to be four unique boats, each in a class by herself.

G-4 was named Thrasher when her keel was laid down on 9 July 1910 by William Cramp and Sons
William Cramp and Sons
thumb | upright | 1899 advertisement for William Cramp & Sons William Cramp & Sons Shipbuilding Company of Philadelphia was founded in 1825 by William Cramp, and was the preeminent U.S. iron shipbuilder in the 19th century. The American Ship & Commerce Corporation bought the yard in 1919 but closed...

 in Philadelphia, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, making her the first ship of the United States Navy to be named for the thrasher
Thrasher
Thrashers are a New World group of passerine birds related to mockingbirds and New World catbirds. Like these, they are in the Mimidae family. There are 15 species in one large and 4 monotypic genera.These do not form a clade but are a phenetic assemblage...

, a thrushlike bird known as a singer and mimic. She was renamed G-4 on 17 November 1911, launched
Ship naming and launching
The ceremonies involved in naming and launching naval ships are based in traditions thousands of years old.-Methods of launch:There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching." The oldest, most familiar, and most widely...

 on 15 August 1912 sponsored by Ms. Grace Anna Taussig, and commissioned
Ship commissioning
Ship commissioning is the act or ceremony of placing a ship in active service, and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to the placing of a warship in active duty with its country's military...

 in the Philadelphia Navy Yard on 22 January 1914, Lieutenant
Lieutenant
A lieutenant is a junior commissioned officer in many nations' armed forces. Typically, the rank of lieutenant in naval usage, while still a junior officer rank, is senior to the army rank...

 L. D. McWhorter in command.

Service history

After fitting out, G-4 proceeded to the New York Navy Yard on 25 April for service with Division Three, Submarine Flotilla, Atlantic Fleet
United States Fleet Forces Command
The United States Fleet Forces Command is an Atlantic Ocean theater-level component command of the United States Navy that provides naval resources that are under the operational control of the United States Northern Command...

. Based on plans purchased from Italian designer Cesare Laurenti, G-4 was an even keel boat, meaning the round pressure hull was flat on the bottom. When surrounded by a streamlined outer hull, the boat was theoretically more stable than the earlier Holland-type boats. The different equipment and operating procedures meant G-4 spent the next five months conducting trial runs and diving tests, many of which failed owing to engine machinery breakdown. Still, almost all of her preliminary trials were completed by the end of August, and the boat was conditionally accepted by the Navy on 21 September.

At the end of October, the boat shifted to New London, Connecticut
New London, Connecticut
New London is a seaport city and a port of entry on the northeast coast of the United States.It is located at the mouth of the Thames River in New London County, southeastern Connecticut....

, and from there she sailed on to Newport, Rhode Island
Newport, Rhode Island
Newport is a city on Aquidneck Island in Newport County, Rhode Island, United States, about south of Providence. Known as a New England summer resort and for the famous Newport Mansions, it is the home of Salve Regina University and Naval Station Newport which houses the United States Naval War...

 in mid-November. Moving back to New York on 22 November, G-4 received post-shakedown repairs to her engines, which suffered from sea water damage owing to leaky exhaust lines and salt contamination of the oil system. After failing several engine trials that winter, the boat proceeded south to her builder's yard in Philadelphia on 9 March 1915. Following two months of repairs, G-4 departed Philadelphia on 12 May and sailed to New York for a Naval Review
Naval Review
A Naval Review is an event, where the whole of the US Navy is paraded to be reviewed by the president or the Secretary of the Navy. It often includes delegates from other national navies. It is more regular and frequent than its British equivalent, the Fleet Review, and often occurs on a Navy...

 before President of the United States
President of the United States
The President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces....

 Woodrow Wilson
Woodrow Wilson
Thomas Woodrow Wilson was the 28th President of the United States, from 1913 to 1921. A leader of the Progressive Movement, he served as President of Princeton University from 1902 to 1910, and then as the Governor of New Jersey from 1911 to 1913...

. G-4 then conducted maneuvers with the submarine flotilla off Newport in late May and again in October, in addition to local training operations out of New York and the submarine base in New London.

On 14 January 1916, G-4 commenced a planned three-month overhaul at the New York Naval Shipyard. Workers installed a gyrocompass
Gyrocompass
A gyrocompass­ is a type of non-magnetic compass which bases on a fast-spinning disc and rotation of our planet to automatically find geographical direction...

 and repaired equipment in preparation for final acceptance trials on 7 March. Although successfully put through her paces, the boat returned to the yard for further alterations, including the installation of new diving rudders. Trouble with the Sperry gyrocompass rudder control mechanism — as well as continued modifications to engines and other machinery — kept the boat in the New York Navy Yard through the end of the year. Finally tested at sea in February 1917, the gyro stabilizer and diving rudders then failed in heavy weather. After G-4 returned to the yard, the broken rudders were repaired and the stabilizer mechanism removed by 10 March.

Sailing to New London on 24 April, G-4 was attached to Division Three, Submarine Flotilla. For the next year, she combined experimental work with new sound detection devices with training new student crews in submarine operations and torpedo
Torpedo
The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

 firing, a period of time punctuated by her joining the submarine tender
Submarine tender
A submarine tender is a type of ship that supplies and supports submarines.Submarines are small compared to most oceangoing vessels, and generally do not have the ability to carry large amounts of food, fuel, torpedoes, and other supplies, nor to carry a full array of maintenance equipment and...

  for harbor submarine net defense experiments. Later in the month, G-4 carried out sound experiments with and in the Thames River
Thames River (Connecticut)
The Thames River is a short river and tidal estuary in the U.S. state of Connecticut. It flows south for through eastern Connecticut from the junction of the Yantic and Shetucket rivers at Norwich, to New London and Groton, which flank its mouth at the Long Island Sound.Differing from its...

 and in Long Island Sound
Long Island Sound
Long Island Sound is an estuary of the Atlantic Ocean, located in the United States between Connecticut to the north and Long Island, New York to the south. The mouth of the Connecticut River at Old Saybrook, Connecticut, empties into the sound. On its western end the sound is bounded by the Bronx...

. In late July, she conducted battle exercises and submerged attack drills against SC-6. On 22 October, Thetis experimented with sound and magnetic detectors while G-4 lay on the bottom of Long Island Sound. Over the winter, she conducted numerous sound experiments with the newly established Submarine School in the area of Block Island Sound
Block Island Sound
Block Island Sound is a strait in the open Atlantic Ocean, approximately wide, separating Block Island from the coast of Rhode Island in the United States...

 and Long Island Sound
Long Island Sound
Long Island Sound is an estuary of the Atlantic Ocean, located in the United States between Connecticut to the north and Long Island, New York to the south. The mouth of the Connecticut River at Old Saybrook, Connecticut, empties into the sound. On its western end the sound is bounded by the Bronx...

.

In March 1918, G-4 shifted from New London to Newport, where she conducted magnetic detector experiments with . The submarine also conducted practice approaches and torpedo instruction for officer and enlisted submarine students. On 21 May, G-4 commenced test firing the new Mark VII torpedo for installation in O
United States O class submarine
The United States Navy's O class submarines were created out of the lessons learned from the United States L class submarine. The O class were more robust with greater power and endurance for ocean patrols. The O class were built much faster than previous classes and were commissioned in 1918. The...

 and N-class
United States N class submarine
The United States N class submarines were a class of seven coastal defense submarines of the United States Navy.The boats were constructed by two companies to slightly different specifications; N-1, N-2, and N-3 by the Seattle Construction and Drydock Company of Seattle, Washington, and N-4, N-5,...

 submarines, evolutions that lasted through mid-July. The boat then returned to New London for a yard period, undergoing motor and electrical repairs through October. Although G-4 resumed training and instruction duties on 4 November, the boat was slated for inactivation on 24 February 1919.

G-4 continued her training and experimental duties until 1 March, when she was placed in ordinary for stripping and inactivation. She decommissioned on 5 September, was designated as a target for depth charge
Depth charge
A depth charge is an anti-submarine warfare weapon intended to destroy or cripple a target submarine by the shock of exploding near it. Most use explosives and a fuze set to go off at a preselected depth in the ocean. Depth charges can be dropped by either surface ships, patrol aircraft, or from...

 and ordnance tests on 6 December, and was sold for scrapping to Connecticut Iron and Metal Company of New London on 15 April 1920. She was struck from the Naval Vessel Register
Naval Vessel Register
The Naval Vessel Register is the official inventory of ships and service craft in custody of or titled by the United States Navy. It contains information on ships and service craft that make up the official inventory of the Navy from the time a vessel is authorized through its life cycle and...

on 13 August 1921.
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