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Trident II D5 missile reaches 150 successful test flights


One of two Trident II D5 missiles tested June 2 by the U S Navy. Photo: U S Navy

SUNNYVALE, CALIFORNIA (BNS): The U S Navy's Trident II D5 fleet ballistic missile, built by Lockheed Martin, has achieved 150 successful test flights, setting a new reliability record for large ballistic missiles.

The Navy launched two unarmed missiles on 2 June in the Atlantic Ocean from a submerged Ohio-class submarine, marking the 149th and 150th successful test flights of the missile since design completion in 1989.

The test flights were part of a demonstration and shakedown operation, which the Navy uses to certify a submarine for deployment following an overhaul. The missiles were converted into test configurations with kits containing range safety devices and flight telemetry instrumentation.

The operation included the first flight of two modernised avionics subsystems that control key missile functions during flight, Lockheed Martin said in a statement.

The subsystems were updated under the D5 Life Extension programme, which incorporates current technologies into the missile's electronics to cost-effectively prolong the service life of the reliable D5 missile design on current and next-generation submarine platforms.

First deployed in 1990, the D5 missile is currently aboard U S Navy Ohio-class and U K Royal Navy Vanguard-class submarines.

The three-stage, solid-propellant, inertial-guided missile can travel a nominal range of 4,000 nautical miles and carries independently targeted reentry bodies.

Tags:

US  Navy  Missile  Trident  Defence  

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