Are There 155mm Naval Guns in the US Navy?

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When discussing the armament of the U.S. Navy, the Zumwalt class destroyers often come up, as they were initially designed to carry 155mm naval guns. However, the story is more complex than a simple yes or no. This article will explore the history, current status, and the implications of having 155mm guns on U.S. Navy ships.

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The Project: Advanced Gun System

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The Advanced Gun System (AGS) was a project aimed at developing a 155mm naval gun for the Zumwalt class destroyers. These ships were to be equipped with this powerful weaponry to provide long-range precision strike capabilities against land targets. However, the implementation of the AGS and the ammunition required for it, the Long Range Land Attack Projectile (LRLAP) round, faced significant challenges.

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Developments and Cancellations

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The AGS program encountered numerous hurdles. The LRLAP round, intended to be the ammunition for the AGS, was tested extensively and proved effective. However, the project was ultimately cancelled due to its exorbitant cost. This decision was made by the U.S. Congress, prioritizing fiscal responsibility and focusing resources elsewhere in the defense budget.

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No Ammunition, No Gun

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Tragically, the lack of ammunition means that the 155mm guns installed on the

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Zumwalt class ships are essentially non-functional. The specialized ammunition required for these guns was never produced in the quantities needed for operational use. Consequently, the ships are equipped with the impressive 155mm guns, but they remain permanently silenced by the absence of the necessary rounds.

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Current Naval Gun Capabilities

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Despite the ambitious 155mm gun system, the U.S. Navy currently deploys smaller naval guns as their primary armament. The largest guns currently in service are 5-inch 54-caliber guns, which equates to approximately 127mm in diameter. These guns have been used on various types of ships and are known for their versatility and effectiveness in various maritime scenarios.

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Historical Context

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The larger 155mm guns were initially planned for the Zumwalt class destroyers due to their potential for long-range and precision strikes. However, the program's cancellation means these ships rely on the 5-inch guns for their main armament. This decision reflects the ongoing challenges in balancing technological innovation with strategic and financial considerations.

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Implications and Future Considerations

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The absence of 155mm guns on the Zumwalt class has significant implications for the U.S. Navy's strategic capabilities. The ships continue to serve effectively, equipped with the 5-inch guns, but the loss of the 155mm system means that long-range precision land strikes are currently not an option for these stealthy destroyers. This situation highlights the complex nature of military development and the importance of careful planning and resource allocation.

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Conclusion

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While it is correct to say that there are 155mm naval guns in the U.S. Navy, the answer is no in terms of functionality. The guns were installed as part of the Zumwalt class, but without the specialized ammunition, they serve only as a reminder of the ambitious project that did not materialize as planned. The current reliance on 5-inch guns underscores the ongoing challenge of matching technological innovation with operational necessity.

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Keywords: 155mm naval gun, US Navy, Zumwalt class destroyers

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