USS Wyoming Successfully Tests Trident II D5LE Submarine-Launched Ballistic Missile (SLBM).

USS Wyoming Successfully Tests Trident II D5LE Submarine-Launched Ballistic Missile (SLBM)
The U.S. Navy conducted a scheduled, two-missile test flight of unarmed life-extended Trident II (D5LE) missiles from USS Wyoming (SSBN-742), an Ohio-class ballistic missile submarine, on the Eastern Test Range off the coast of Cape Canaveral, Florida, Sept. 17, as part of a Demonstration and Shakedown Operation, designated DASO-31, to evaluate and demonstrate the readiness of the SSBN’s Strategic Weapon System (SWS) and crew before operational deployment following the submarine’s engineered refueling overhaul.

Trident II D5LE Missiles is a submarine-launched ballistic missile (SLBM), built by Lockheed Martin Space in Sunnyvale,

California, and deployed with the American and British navies
In US service Trident II can be loaded with up to eight Mk-5 RVs with 475-kt W88 warheads, up to fourteen Mk-4A RVs with 90-kt

W76-1 warheads, and up to fourteen Mk-4A RVs with 5–7-kt W76-2 warheads. In practice, each missile on average carries four

warheads due to the warhead limitations placed by the New START treaty.

Power Plant :
Three-stage solid-propellant rocket
Length :
44 feet (13.41 meters)
Weight :
130,000 pounds (58,500 kg)
Diameter :
74 inches (1.85 meters)
Range :
Greater than 4,000 nautical miles (4,600 statute miles, or 7,360 km)
Guidance System :
Inertial
Warheads :
Thermonuclear MIRV (Multiple Independently Targetable re-entry Vehicle); Maneuverable Re-entry Vehicle
Specifications :
Mass : 130,000 lb (59,000 kg)
Length : 44 ft 6.6 in (13.579 m)
Diameter : 6 ft 11 in (2.11 m) (1st stage)
Warhead :
1–8 Mk-5 RV/W88 (475 kt) or
1–14 Mk-4 RV/W76-0 (100 kt) or
1–14 Mk-4A RV/W-76-1 (90 kt)
Single or multiple W76-2 (5–7 kt)
Engine :
– Three solid-fuel rocket motors; first & second stage
– Thiokol/Hercules solid-fueled rocket; third stage
– United Technologies Corp. solid-fueled rocket
Propellant :
NEPE-75: Nitrate ester, plasticized polyethylene glycol-bound HMX, Aluminum, ammonium perchlorate
Operational range :
More than 7,500 mi (12,000 km)
Maximum speed :
Approximately 18,030 mph (29,020 km/h) (Mach 24; 8,060 m/s)
Guidance system :
MK 6 astro-inertial guidance which is able to receive Global Positioning System updates
Steering system :
Single movable nozzle actuated by a gas generator
Accuracy :
90 m with Mk-5 RV using GPS guidance
120–183 m with Mk-5 RV using astro-inertial guidance
381 m with Mk-4 RV (in the process of retirement with the W76-0 warhead)
Launch platform :
Ballistic missile submarine



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