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David
Sun January 4, 2004 12:31am

Deep Submergence Rescue V

Function: Deep submergence rescue vehicle.

History: DSRVs were developed as a result of the USS Thresher submarine accident in 1963, when all hands were lost. At the time, submarine operating depths greatly exceeded the capabilities of rescue vessels. The Deep Submergence Systems Project contracted with Lockheed Missiles and Space, Co. to produce a deep diving rescue submarine, the first of which was launched in 1970.

Description: The primary mission of the DSRV is to provide a quick reaction, worldwide, all-weather capability to rescue personnel from submerged, disabled submarines (DISSUB) of the U.S. Navy or foreign navies at depths up to 2000 feet. The maximum operating depth is approximately 5000 feet. Mystic can be transported by truck, aircraft, surface ship, or on a mother submarine. For a rescue operation, it can dive, locate the DISSUB, and attach itself to the DISSUB's rescue seat. After the DSRV is properly attached to the submarine, the DISSUB's access hatches are opened and submarine personnel can directly the DSRV. The DSRV then detaches from the submarine and transfers the rescued personnel to the support ship.

General Characteristics, DSRV

Builders:
Lockheed Missiles and Space Company, Sunnyvale, CA

Power Plant:
Electric motors, silver/zinc batteries,
1 shaft, 15 shaft horsepower, 4 thrusters, 7.5 horsepower

Length, Overall:
49 feet (14.94 meters)

Beam:
8 feet (2.44 meters)

Displacement:
38 long tons (38.61 metric tons)

Speed:
4 kts (4.6 mph, 7.40 kph)

Maximum Operating Depth:
5,000 feet (1524 meters)

Crew:
2 pilots, 2 rescue personnel and capacity for 24 passengers

Sonar:
Deep submergence obstacle avoidance sonar (DSOAS): 27 kHz, (8,000 yard range)

Downward looking sonar (DLS): Sonar for hatch mating 500 kHz (600 ft. range)

Altitude/depth sonar(A/D): 24 kHz SONAR 0-5,000 ft. range)

UQC, 8 kHz, Voice and CW (ATM 504)

Directional listening hydrophone tuned to 3.5 kHz

Side looking sonar (installed for alternate mission), 1 ft. resolution, 183 kHz; maximum range 1200 ft. either side (2400 ft. total)

Equipment:
One gripper/cutter designed to clear debris from hatch; capable of cutting steel cable and lifting 1000 lbs.

Ships:
Mystic (DSRV-1) deployed 1970
Avalon (DSRV-2) deployed 1971

David
Sun January 4, 2004 12:31am

NR-1 Deep Submergence Cra

Function: A nuclear-powered ocean engineering and research submarine.

History: NR-1, the first deep submergence vessel using nuclear power, was launched at Groton on Jan. 25, 1969, and successfully completed her initial sea trials August 19, 1969. It maneuvers by four ducted thrusters, two in the front and two in the rear. The vehicle also has planes mounted on the sail, and a conventional rudder. NR-1's missions have included search, object recovery, geological survey, oceanographic research, and installation and maintenance of underwater equipment. NR-1's unique capability to remain at one site and completely map or search an area with a high degree of accuracy has been a valuable asset on several occasions. Following the loss of the Space Shuttle Challenger in 1986, the NR-1 was used to search for, identify, and recover critical parts of the Challenger craft. Because it can remain on the sea floor without resurfacing frequently, NR-1 was a major tool for searching deep waters. NR-1 remained submerged and on station even when heavy weather and rough seas hit the area and forced all other search and recovery ships into port. Today, NR-1 continues to provide a valuable service to the Navy and many research and educational institutions.

Description: The NR-1 performs underwater search and recovery, oceanographic research missions and installation and maintenance of underwater equipment, to a depth of almost half a mile. Its features include extendable bottoming wheels, three viewing ports, exterior lighting and television and still cameras for color photographic studies, an object recovery claw, a manipulator that can be fitted with various gripping and cutting tools and a work basket that can be used in conjunction with the manipulator to deposit or recover items in the sea. Surface vision is provided through the use of a television periscope permanently installed on a mast in her sail area. NR-1 has sophisticated electronics and computers that aid in navigation, communications, and object location and identification. It can maneuver or hold a steady position on or close to the seabed or underwater ridges, detect and identify objects at a considerable distance, and lift objects off the ocean floor. NR-1 can travel submerged at approximately four knots for long periods, limited only by its supplies. It can study and map the ocean bottom, including temperature, currents, and other information for military, commercial and scientific uses. Its nuclear propulsion provides independence from surface support ships and essentially unlimited endurance. NR-1 is generally towed to and from remote mission locations by an accompanying surface tender, which is also capable of conducting research in conjunction with the submarine.

General Characteristics, NR-1

Builders:
General Dynamics Electric Boat Division

Power Plant:
1 nuclear reactor, 1 turbo-alternator; 2 motors (external), 2 propellers, 4 ducted thrusters (2 horizontal, 2 vertical)

Date Deployed:
Oct. 27, 1969

Length, Overall:
150 feet (45.72 meters)

Displacement:
400 long tons (406.42 metric tons)

Diameter:
12 feet (3.66 meters)

Maximum Operating Depth:
2,375 feet (723.90 meters)

Crew:
2 officer, 3 enlisted, 2 scientists

Armament:
None

David
Sun January 4, 2004 12:31am

SSGN - Guided Missile Sub

Function: SSGN Guided Missile Submarines are nuclear-powered submarines armed with tactical missiles and the ability to transport and support special operations forces.

Entered Navy: Beginning 2003 / 2004.

Description: Four Ohio-class Trident submarines that were previously scheduled for inactivation during Fiscal Years 2003 and 2004 are being converted to guided missile submarines (SSGN) over a five-year period ending in 2008. The primary missions of the SSGN will be land attack and Special Operations Forces (SOF) insertion and support. Secondary missions will be the traditional attack submarine missions of intelligence, surveillance and reconnaissance (ISR), battle space preparation, and sea control.

These ships will be armed with up to 154 Tomahawk? or Tactical Tomahawk? land attack missiles. They will have the ability to carry and support a team of 66 SOF personnel for up to 90 days as compared to 15 days for a SOF outfitted fast attack submarine (SSN). Clandestine insertion and retrieval of these Special Operations Forces will be enhanced by the ability to host dual dry deck shelters and/or Advanced Seal Delivery System. Each SSGN will be able to conduct a variety of peace-time, conventional deterrent, and combat operations all within the same deployment.

USS Ohio (SSBN 726) entered the conversion yard on 15 November 2002. On 14 January 2003, USS Florida (SSBN 728) became the first Ohio-class submarine to launcha cruise missile. The launch was made from underwater in the Gulf of Mexico.

General Characteristics, SSGN Guided Missile Submarines

Contractor:
General Dynamics Electric Boat Division

Length:
560 feet (170.69 meters)

Beam:
42 feet (12.8 meters)

Displacement:
16,764 tons (17,033.03 metric tons) surfaced; 18,750 tons (19,000.1 metric tons) submerged

Ships:

USS Ohio (SSBN 726) ? Out of service 29 Oct. 2002 for conversion to SSGN
USS Michigan (SSBN 727) ? conversion to SSGN scheduled for October 2003
USS Florida (SSBN 728) ? conversion to SSGN scheduled for October 2003
USS Georgia (SSBN 729) ? conversion to SSGN scheduled for 2004

Powerplant:
One nuclear reactor, one shaft

Speed:
20+ knots (23+ miles per hour, 36.8 +kph)

Combat Systems:

* AN/SLQ-48 - Mine Neutralization Equipment
* AN/SQQ-32 - Minehunting Sonar
* AN/SYQ-13 - Navigation/Command and Control
* AN/SSQ-94 - On board Trainer
* Two .50 caliber machine guns

Crew:
15 Officers, 140 Enlisted

Armament:
Up to 154 Tomahawk missiles each (140 on SOF-configured SSGNs).

David
Sun January 4, 2004 12:31am

LSV-2: Large Scale Vehicl

Function: The world's largest unmanned autonomous submarine. LSV 2 Cutthroat will offer the capability to conduct a wide variety of studies dramatically improving the acoustic and operational performance of future submarines.

Entered Navy: 2001.

Description: LSV 2 Cutthroat will provide submarine design engineers a platform to test advanced submarine technologies.

Cutthroat, a 205-ton, large scale submarine test vehicle, will be used to affordably explore and test emerging technologies and to conduct physics-based experiments. Specific emphasis will be on stealth, hydrodynamics, hydroacoustics and propulsion designs to permit technology insertion into current and future submarines.

The LSV 2 will provide the capability to develop and evaluate the effectiveness of new technologies that will result in major improvements in performance for the U.S. Navy's new attack submarine, USS Virginia (SSN 774). The LSV 2 is being designed and built by an industry team from Newport News Shipbuilding and General Dynamics/Electric Boat Company under contract from Naval Sea Systems Command (NAVSEA).

After delivery in 2001, LSV 2 will operate on Lake Pend Oreille at the Acoustic Research Detachment in Bayview, Idaho, the Navy's laboratory for demonstrating submarine stealth technology. The facility is operated by the Naval Surface Warfare Center's Carderock Division.

Cutthroat, named after a native Idaho trout, was named in 1997 after a selection process by nearby Athol Elementary School. The Navy asked the school to decide on a name from a list of indigenous Idaho fish. Many of these students attended the keel-laying in October 1997 and signed their names on the hull during the November 2000 ceremony.

Cutthroat is similar to Kokanee (LSV-1), but more advanced. Enhancements include a larger overall scale ? 29 percent, vice 25 percent for Kokanee ? which will improve the fidelity of test data to full-scale results. Cutthroat is designed to be more modular than Kokanee, so that major modifications, including radical hull changes, can be made with less impact to other systems onboard the vessel. Another advantage is an increase in ODAS capability. The Cutthroat ODAS will have twice as many data channels recorded as Kokanee at delivery ? 512, vice 256 ? and this is upgradable to 1,536 recorded channels. The Cutthroat ODAS converts the data from analog to digital form and processes the data digitally. In Cutthroat, data recording can be configured electronically under computer control, whereas Kokanee uses a patch panel. Cutthroat is equipped with a 3,000 horsepower permanent-magnet, radial-gap electric propulsion motor, provided to the Navy under a unique partnership agreement with General Dynamics Electric Boat, the owner of the technology. This motor is easily upgradable to 6,000 horsepower. Other order-of-magnitude improvements were engineered into the guidance, navigation, control, and propulsion systems, including the addition of torque sensors and other sensors of mechanical data for better reconstruction of the scenario.

General Characteristics, LSV-2: Large Scale Vehicle 2

Contractor:
Newport News Shipbuilding and General Dynamics Electric Boat

Length:
111 feet (33.83 meters)

Diameter:
10 feet (3.05 meters)

Weight:
205 tons (205,000 metric tons)

Ships:
Cutthroat (LSV 2), christened on November 15, 2000

Propulsion:
Electric drive (3,000 shaft horsepower (shp) plant coupled with electric motor controller, expandable to 6,000 shp with additional motor controlled modules).

Armament:
None

Crew:
None

David
Tue January 27, 2004 12:25am
Rating: 10

Navy Recruiting Poster

U.S. Navy Recruiting Poster, circa 1908

Poster featuring the historic U.S. Navy ships (clockwise from upper left): Bon Homme Richard, Constitution, Oregon and Hartford, with USS Michigan (BB-27) in center, plus information on pay and other benefits. Published on behalf of the Naval Recruiting Station, Saint Louis, Missouri.
A faint stamp near the view of Oregon states: "After July 1, 1908, pay herein mentioned will be increased 10%".

David
Thu April 15, 2004 2:04pm

Charleston, 28 June 1776

In June 1776 British Admiral Peter Parker 'a fleet, loaded with troops commanded by General Henry Clinton, made an appearance off Charleston, South Carolina. The city, feverishly preparing for an attack, had partially completed Fort Sullivan, Charleston's key defense position. The 30-gun fort on Sullivan's Island was hastily constructed from the moat abundant materials available, palmetto logs and sand. The garrison, commanded by Colonel William Moultrie, contained over 400 men including 22 artillerists and the 2d South Carolina Provincial Regiment.
Because of a sand bar the British delayed their attack on Charleston until 28 June 1775 while they lightened ship. Clinton's 2,000 British soldiers, landing on adjacent Long Island, were unable to cross an estuary to join in the attack. The fleet began its bombardment at a range of about 400 yards. Low on powder, Moultrie directed his men to fire slowly and accurately in reply.

During the engagement a shell struck the flagpole, and the blue South Carolina banner fell outside the fort. Sergeant William Jasper retrieved it and, oblivious to British fire, secured the flag to a makeshift staff.

The falling shells, absorbed by the soft palmetto loge and sand, caused little damage to the fort and few casualties. Even shells that did enter the fort buried themselves in the swampy parade ground. The wooden frigates on the other hand were riddled with shot. One explosion blew away Sir Peter Parker's breeches.

Finally, after more than ten hours of firing, the British fleet withdrew and several weeks later sailed for New York. For three years following the defeat at Charleston the British were to leave the South unmolested and the Southern Tories, who were undoubtedly numerous, without succor.

tdeane
Thu July 15, 2004 6:27am

MWS, Ship life!

This picture was taken aboard the USS Kitty Hawk, I think.

David
Sat October 2, 2004 1:28am
Rating: 10

Battalion Seas Arriving i

Battalion Seas Arriving in South Vietnam

An amphibious task group of Second Battalion, Third Marines lands along the coast of South Vietnam, 15 miles north of Hue on July 20th, 1967. The Amtracks transported the Marines from landing ships in the South China Sea to the assault beach.

This mission called "Bear Chain" operation was the thirty-fourth assault that Pacific Fleet Amphibious Force ships had launched on the North Vietnamese Army and Viet Cong positions in South Vietnam, since March 1965.