Anonymous ID: 278680 Jan. 14, 2020, 8:13 p.m. No.7817908   🗄️.is 🔗kun   >>7930 >>7985

Anybody else catch where POTUS dropped the number 10,000 during his speech tonight? It was during the part where he talks about household incomes rising only 975 dollars under Hussein. There has to be transcript somewhere. Maybe an Easter Egg in there?

Anonymous ID: 278680 Jan. 14, 2020, 8:45 p.m. No.7818110   🗄️.is 🔗kun   >>8151 >>8160 >>8171 >>8182 >>8184

>>7817958

As soon as I saw that monolith looking thing on the stern I instantly thought of this.

 

https://en.wikipedia.org/wiki/PAVE_PAWS

 

Description:

The radar was built in the Cold War to give early warning of a nuclear attack, to allow time for US bombers to get off the ground and land-based US missiles to be launched, to decrease the chance that a preemptive strike could destroy US strategic nuclear forces. The deployment of submarine launched ballistic missiles (SLBMs) by the Soviet Union by the 1970s, significantly decreased the warning time available between the detection of an incoming enemy missile and its reaching its target, because SLBMs can be launched closer to the US than the previous ICBMs, which have a long flight path from the Soviet Union to the continental US. Thus there was a need for a radar system with faster reaction time than existing radars. PAVE PAWS later acquired a second mission of tracking satellites and other objects in Earth orbit as part of the United States Space Surveillance Network.

Anonymous ID: 278680 Jan. 14, 2020, 8:59 p.m. No.7818197   🗄️.is 🔗kun   >>8219

>>7818160

More modern and capable for sure. Interesting combination of equipment on that ship.

 

https://en.wikipedia.org/wiki/Sea-based_X-band_Radar

 

Details

SBX-1 is part of the Ground-Based Midcourse Defense (GMD) system under development by the Missile Defense Agency (MDA). The decision to place the system on a mobile sea-based platform was intended to allow the vessel to be moved to areas where it is needed for enhanced missile defense. Fixed radars provide coverage for a very limited area due to the curvature of the Earth. However, the same limitation applies to the SBX. SBX's primary task is discrimination of enemy warheads from decoys, followed by precision tracking of the identified warheads. Testing has raised doubts about the system's ability to perform these tasks, to deal with multiple targets, and to report accurately to command authorities.[1]

 

The vessel has many small radomes for various communications tasks and a large central dome that encloses a phased-array, 1,800 tonne (4,000,000 pound) X band radar antenna. The small radomes are rigid, but the central dome is not - the flexible cover is supported by positive air pressure amounting to a few inches of water. The amount of air pressure is variable depending on weather conditions.

 

The radar antenna itself is described as being 384 m2 (4,130 sq ft). It has 45,000[2] solid-state transmit-receive modules mounted on an octagonal flat base which can move ±270 degrees in azimuth and 0 to 85 degrees elevation (although software currently limits the maximum physical elevation to 80 degrees). The maximum azimuth and elevation velocities are approximately 5-8 degrees per second. In addition to the physical motion of the base, the beam can be electronically steered off bore-sight (details classified).

 

There are currently 22,000 modules installed on the base. Each module has one transmit-receive feed horn and one auxiliary receive feed horn for a second polarization, totaling 44,000 feedhorns. The base is roughly 2/3 populated, with space for installation of additional modules. The current modules are concentrated toward the center to minimize grating lobes. This configuration allows it to support the very-long-range target discrimination and tracking that GMD's midcourse segment requires. The radar is never pointed at land, for the safety of the inhabitants.

 

In addition to the power consumed by the radar, the thrusters which propel the vessel are electric and require substantial power. The maximum speed is approximately 8 knots (9.2 mph; 15 km/h). To support this and all other electrical equipment, the vessel currently has six 3.6-megawatt generators (12-cylinder Caterpillar diesels). The generators are in two compartments, one port and one starboard.

 

SBX entering Pearl Harbor, Hawaii for repairs on 9 January 2006

The radar is derived from the radar used in the THAAD theater ballistic missile defense system, and is a part of the layered ballistic missile defense (BMDS) program of the United States Missile Defense Agency (MDA). One important difference from Aegis is the use of X band in the SBX. Aegis uses S band, and Patriot uses the higher-frequency C band. The X band frequency is higher still, so its shorter wavelength enables finer resolution of tracked objects.

 

The radar was described by Lt. Gen Trey Obering (former director of MDA) as being able to track an object the size of a baseball over San Francisco in California from Chesapeake Bay in Virginia, approximately 2,900 miles (4,700 km) away.[3][4] The radar will guide land-based missiles from Alaska and California, as well as in-theater assets, depending on the mission.

 

The vessel is classed by ABS and has the IMO number of 8765412.

 

SBX departing Pearl Harbor, Hawaii on 31 March 2006

 

The first such vessel is scheduled to be based in Adak Island, Alaska, part of the Aleutian Islands. From that location it will be able to track missiles launched toward the US from both North Korea and China. Although her homeport is in Alaska, she will be tasked with moving throughout the Pacific Ocean to support her mission. The hull code number given to the SBX vessel, "SBX-1", indicates the possibility of further units of the class. In circumstances when a vessel is required to be continually on duty over a long period of time, common naval practice is to have at least three units of the type available to allow for replenishment, repair and overhaul. Three further vessels of the CS-50/Moss Sirius design were under construction or contract at the Severodvinsk Shipyard in Russia as of early 2007, but were configured for oil production. On 11 May 2011, Col. Mark Arn, the SBX project manager for MDA, said that the "SBX is the only one of its kind and there are no current plans for another one".[5] In July 2011, a Missile Defense Agency spokesman explained that other, smaller radars in the Pacific will "pick up the slack" while SBX is in port with its radar turned off.