![]() ![]() Arleigh Burke destroyers were designed to operate primarily in the tropics. DDG(X) aims to have improved seakeeping and improved Arctic operations. The plan also calls for a 25 percent reduction in fuel usage compared to the DDG-51 and reduced requirement for the Navy combat logistics fleet. The Navy is also calling for a ship that can travel 50 percent farther and spend 120 percent longer time on station. The Navy is also planning for a modular payload space for different future missions. The SPY-6 air search radar could expand from a 14-foot aperture to an 18-foot aperture that would increase the sensitivity of the sensor. The current DDG-51s field 96 MK-41 VLS cells and USNI News understands that Navy requirements keep the VLS cells for DDG(X) about the same. Initially, the ship would feature a 32-cell Mk-41 Vertical Launch System forward of the superstructure that could be swapped for 12 larger missile cells capable of fielding the Pentagon’s emerging hypersonic weapons being developed for the Navy, Army and the Air Force. Notionally, the new ship could power up to 600-kilowatt lasers that would be powerful enough to interdict hostile guided missiles. The technology will be key for the DDG(X) to generate the power for directed energy and new sensors. On the three Zumwalt-class DDGs, the ship’s gas turbines drive a ship-wide electrical grid that generates more than 75 megawatts of power – enough to light a small town. The ship will trade the traditional gas-turbine propulsion system for one like the Integrated Power System found on the Zumwalt class of guided missile destroyers. ![]() And we will need a platform that can accommodate those new technologies.” We on the Navy side will continue to evolve our combat and other capabilities to deter the threat. So, the threat is going to continue to evolve. “Flight III is going to be in the fleet through the. “In order to understand DDG(X) and the need for it, you really need to talk about the large surface combatant as a whole,” Connelly said. The Navy is developing the DDG(X) using the combat system developed from the Flight III Arleigh Burkes that incorporated the new SPY-6 air search radar and the Baseline 10 Aegis combat system. “Capabilities that we’re going to need for the 21st century to continue combating the threat are increased missile capability sensor growth, directed energy weapons, which actually require a lot of power, increased survivability and increased power availability,” deputy program manager Katherine Connelly said at a Wednesday briefing at the Surface Navy Association symposium. The warship is estimated to start construction in 2028, the Navy told USNI News last year. The warship, the largest the Navy’s attempted in more than 20 years, is designed to provide the service with the power to drive a new generation of directed energy weapons and high-power sensors that will follow the Navy’s current fleet of Arleigh Burke-class guided-missile destroyers. – The Navy wants its next warship to fire hypersonic missiles and lasers that would be ten times more powerful than the service’s existing laser weapons, according to the most detailed outlook to date of the DDG(X) next generation warship issued by the service. This report summarizes the results of that briefing as well as additional work we performed since that time.Notional Navy DDG(X) hull design. In March 2006, we provided you with a briefing of our findings regarding propulsion systems for Navy ships and submarines. ![]() Our objectives were to determine (1) the status and scope of key Navy studies on alternative propulsion methods, (2) the major improvements to existing propulsion systems, (3) near-term and future ships' propulsion systems, and (4) the various ship propulsion related technologies the Navy is pursuing. Congress requested that we review the Navy's assessment of alternative propulsion methods for submarines and surface combatants. Moreover, the cost of fossil fuel has risen sharply in recent years. For example, technological advances have enabled greater efficiency in both nuclear and conventional propulsion systems. As the Navy looks to design an affordable force that is capable of meeting future security challenges, some of the assumptions and factors that have guided past Navy decisions on propulsion systems may require reassessment. In recent years, the Navy has used nuclear propulsion systems for its submarines and most aircraft carriers and conventional propulsion systems that rely on fossil fuel for its surface combatants and amphibious warfare ships. ![]()
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