Home » News & Analysis » USS Zumwalt to Conduct Brief Sea Trial This Week to Light Off Radar, Test Recent Fixes

USS Zumwalt to Conduct Brief Sea Trial This Week to Light Off Radar, Test Recent Fixes

The guided-missile destroyer USS Zumwalt (DDG 1000) arrives at its new homeport in San Diego on Dec. 8, 2016. US Navy photo.

The guided-missile destroyer USS Zumwalt (DDG 1000) arrives at its new homeport in San Diego on Dec. 8, 2016. US Navy photo.

First-in-class destroyer USS Zumwalt (DDG-1000) will head to sea this week to begin testing components of its combat system, in its first sea trial event since arriving in its homeport of San Diego in early December.

Vice Adm. Tom Moore, commander of Naval Sea Systems Command, told USNI News this morning that the at-sea event is “not a full-fledged combat system” lightoff event, but rather “it’ll be the first opportunity to light the [SPY-3 Multi-Function Radar] off, and it’ll be the first opportunity to light off several of the other combat system elements on the ship.”

Moore said the ship would operate for a few days, engineers would collect some data, and then the ship would return to shore for its scheduled six-month post-shakedown availability. A full at-sea trial will take place after the PSA to test the entire combat system.

This week’s at-sea trial will also be the first opportunity to test the solution the Navy developed for a lube oil coolers failure that sidelined Zumwalt at least twice during its transit from Bath Iron Works in Maine to San Diego in the fall.

Moore said going to sea would allow the Navy to “test out some of the things we fixed in the propulsion plant that we had the challenges when we transited (to San Diego), and then it’s the first opportunity really to turn on some of these systems and go radiate things for the first time and go collect some data, work with Raytheon and make sure that the system is working like it’s supposed to.”

Specifically on the lube oil cooler solution, Moore said engineers had tested the fix pier-side, “but until you can go run the ship up to full power, you never – it’s like when you sit in your car in the driveway, you can turn the car on, it’s running, but until you can take it out on the highway and run it around. So we’ve made some fixes and we think we’ve fixed the design issues there. We haven’t come through everything, but we want to go out and we’ll run her around for a couple days at sea.”

  • Centaurus

    Another hole to pour money down. We may as well put Tomahawks on a Greek Trireme.

  • 1087CHENG

    What? ZUMWALT was delivered and commissioned without ever proving that her primary combat system — her reason for being — even worked? And she has now been sitting idly alongside the pier in San Diego for over two months? And she now must do a full power trial to test the lube oil cooler fix? I suspect there is a more basic, fundamental propulsion problem than just lube oil coolers. Regulating lube oil temperature is not rocket science — we have been doing that for well over a century, ever since we figured out how to systematize sumps, pumps, piping, heat exchangers, and temperature gages. What’s the real problem?

    • sniperbait66

      That was the DEAL. Pay First take delivery, then Pay more to have a ship that actually meets the design specs. That way, Congressswine can get more Palm “grease”.

      • Western

        Kind of sounds like the USS Pelosi. We have to build it and pay for it before we find out what is in it.
        Our whole approach to new technology needs a review and overhaul.

  • John B. Morgen

    The Navy better make sure that there’s a couple tugs to escort her back to port.

    • sniperbait66

      Actually, it’s a NEW configuration. They thought no one would notice the Tugs…

      • John B. Morgen

        What the Navy added some new paint?

  • javier villanueva

    cuantos troll asalariados rusos y chinos.


    The 4.5 Billion dollars spent on one super destroyer could have been diverted to construct one or perhaps even two Aegis Ashore sites on both the east and west coast .EM guns and lasers are great future weapons but their still in the test phase .Missile defense is a more pressing issue given the threat posed by Russia,China ,North Korea and Iran .The Pentagon should focus on developing and deploying ICBM killers and not waste money on a tiny fleet of special purpose super destroyers .

  • Andrew Doolittle

    If this ship works as advertised i think the production line should remain open.

    All other destroyers if not surface combatants are now obsolete because of this Platform.

    The only one that might be equal is a fully functioning Iowa Class ironically.

  • Andrew Doolittle

    155 mm canon can fire nuclear artillery.