NR-1 ( Rus. NR-1 ) - American experimental nuclear submarine . With a displacement of 400 tons, an immersion depth of up to 1000 meters [1] and without weapons, the NR-1 actually occupies an intermediate position between submarines and deep-sea inhabited vehicles.
| NR-1 | |
|---|---|
| Deep Submergence Craft NR-1 'Nerwin' | |
 | |
| Ship history | |
| Flag state |  USA (before 1976)  USA |
| Port of registry | New london |
| Launching | January 25, 1969 |
| Withdrawn from the fleet | November 21, 2008 |
| Current status | decommissioned |
| Main characteristics | |
| Type of ship | small deep-sea submarine |
| Project designation | NR-1 |
| Project developer | Fvyj |
| Chief Designer | John Craven |
| Speed (surface) | 4,5 knots |
| Speed (underwater) | 3.5 knots |
| Immersion depth | 915 m |
| Autonomy of swimming | nominal 16 days, maximum 25 days |
| Crew | 13 people
|
| Dimensions | |
| Underwater displacement | 400 t |
| The length is the greatest (on design basis) | 45 m; 29.3 m strong case |
| The width of the body naib. | 3.8 m; 4.8 m stabilizers |
| Average draft (on design basis) | 4.6 m |
| Power point | |
Atomic
| |
Content
- 1 Construction History
- 2 Service History
- 3 Construction
- 4 crew
- 5 notes
- 6 References
- 7 Literature
Construction History
The submarine was built at the shipyard Electric Boat (a division of General Dynamics in Groton ) [2] . The bookmark took place in 1967, launching on January 25, 1969 [2] . On August 19 of the same year, sea trials were completed, and the boat began service, based on the New London Naval Submarine Base. The NR-1 was never officially named or commissioned. US naval forces use consecutive ship numbering assigned through Congress, and Admiral Hyman Rickover sought not only not to be on the general list, but also to avoid the oversight that the ship is usually subjected to by several bureaucratic organizations at once [2] .
Service History
NR-1 is intended for oceanographic and geological research, repair work, for installation and maintenance of underwater equipment [2] .
Used to search for and retrieve the remains of an F-14 fighter that rolled into the sea from the deck of the aircraft carrier John F. Kennedy in 1976. [3] After the crash of the Challenger shuttle in 1986, the NR-1 was used to search for and lift its debris from the bottom. Due to its ability to remain under water for a long time, the boat was the main tool for deep sea searching. At the same time, NR-1 worked even when weather conditions on the surface and sea waves forced all surface ships to return to the port.
Due to the low speed, NR-1 was usually delivered to the dive zone in tow by a surface support vessel, which is also able to participate in research, supplementing the boat and providing conditions for the crew to rest and replenish supplies. The NR-1 is paired with the MV Carolyn Chouest vessel , which provides towing, communication, anchoring and assistance in all the work of NR-1. This vessel serves as a universal platform for accommodating the required additional equipment and, together with its crew, is an indispensable part of the NR-1 deep submergence team.
In 1995, Dr. Robert Ballard used the NR-1 and Carolyn Chouest to study the backbone of the Britannic ship of the same type with the Titanic liner, which served as a hospital ship during World War I and died on mines off the coast of Greece.
In 2002, she examined the remains of one of the first American ships, the Monitor and Akron. [3]
On February 25, 2007, the NR-1, towed by Carolyn Chouest, arrived in Galveston, Texas to prepare an expedition to the Gulf of Mexico . [ clarify ]
Design
The basis of the NR-1 power plant is a low-power water-to-water nuclear reactor that transfers energy via a turbine to an alternating current turbogenerator [2] . The generator feeds two electric motors that rotate two propellers. The depth rudders are placed on the wheelhouse, the vertical rudder has the usual design and is located in the tail. Four rotary thrusters improve boat maneuverability.
NR-1 is equipped with a complex of electronic, computer and sonar equipment, which solves the problems of navigation, communication, detection and identification of underwater objects, as well as the lifting of finds to the surface. The boat is able to study the seabed, measure the temperature and direction of currents, receive various information for military, commercial, scientific use. NR-1 has a very high maneuverability. A valuable feature is the ability to hang in water without movement, positioning with high accuracy. A nuclear reactor provides independence from surface support ships and allows you to move in a submerged state for a long time, limited only by food supplies for the crew [2] .
For deep-sea operations, the boat is equipped with retractable wheels, three portholes, an external lighting system, fixed and movable cameras, a multi-purpose gripper-manipulator, a basket for samples and accessories [2] . Orientation to the surface is carried out using a camera fixed on an unmanned mast on the roof of the cabin instead of a retractable periscope. Since in the case of NR-1, stealth when viewed from the surface is undesirable, then part of the hull of the boat is painted in bright red.
Crew
The boat is the basis of the special research group "NR-1 deep submergence team", which includes 35 people from the Navy and 10 civil servants. The boat accommodates up to 13 crew members, including three out of four group officers. The fourth officer, as a rule, is on the support vessel. All members of the NR-1 crew were trained in handling a nuclear reactor and passed the corresponding exam.
Notes
- ↑ Submarines in anti-submarine warfare , journal Foreign Military Review No. 3 1976
- ↑ 1 2 3 4 5 6 7 US Navy revealed the remains of a secret deep-sea submarine
- ↑ 1 2 New in the World of Weapons and Military Equipment in 2008 , nvo.ng.ru, 2008-12-26.
Links
- US Navy Study of the NR-1 (English) , PDF
- History of NR-1
- Report on the dive on the NR-1 with photos and audio recordings (inaccessible link from 12/08/2013 [2264 days] - history , copy ) (English)
Literature
- A.E. Taras. Nuclear submarine fleet 1955-2005 . - M .: AST, Mn .: Harvest, 2006 .-- S. 41. - 216 p. - ISBN 985-13-8436-4 .