Updated 9 a.m., January 16, with the Navy's response.

In less than two months, the Navy will send the first of its newest class of fighting ships on its first major deployment overseas. Problem is, according to the Pentagon's chief weapons tester, the Navy will be deploying the USS Freedom before knowing if the so-called Littoral Combat Ship can survive, um, combat. And what the Navy does know about the ship isn't encouraging: Among other problems, its guns don't work right.

That's the judgment of J. Michael Gilmore, the Defense Department's director of operational test and evaluation, in an annual study sent to Congress on Friday and formally released Tuesday. Gilmore's bottom line is that the Littoral Combat Ship (LCS) is still "not expected to be survivable" in combat. His office will punt on conducting a "Total Ship Survivability Test" for the first two LCSes to give the Navy time to complete a "pre-trial damage scenario analysis." In other words, the Freedom will head on its first big mission abroad – maritime policing and counter-piracy around Singapore – without passing a crucial exam.

The systems the LCSs will carry, from their weapons to their sensors, compound the problem. The helicopters scheduled to be aboard the ship can't tow its mine-hunting sensors, so the Navy is going to rely on robots instead – only the robots won't be ready for years. And the faster the ship goes, the less accurate its guns become.

In fairness, the point of operational testing is to uncover and flag flaws in the military's expensive weapons systems. And first-in-class ships often have kinks that are worked out in later vessels. Plus, it's not like the Navy is rushing the Freedom to fight World War III. The local pirates there would never be confused for a serious navy. But the flaws Gilmore identifies go to the some of the core missions behind LCS' existence: to fight close to shore, at high speeds; and to clear minefields.

These words have haunted the Navy ever since Gilmore's office uttered them in December 2011: "LCS is not expected to be survivable in a hostile combat environment." At a Navy expo in April 2012, Secretary Ray Mabus insisted that LCS is "a warship and it is fully capable of going into combat situations," while heralding the LCS' 2013 deployment to Singapore.

Gilmore's new report stands by the 2011 assessment, though it sands down the rough edges. "LCS is not expected to be survivable," it finds, "in that it is not expected to maintain mission capability after taking a significant hit in a hostile combat environment." Additionally, Gilmore discloses that the Navy has "knowledge gaps related to the vulnerability of an aluminum ship structure to weapon-induced blast and fire damage," but that it won't conduct tests for those vulnerabilities until later this year or next year.

It might also not be able to depend on all of its weapons in a fight. The 30mm gun on board the Freedom "exhibit[s] reliability problems." The 57mm gun on both the Freedom and its sister ship, the differently designed USS Independence, is apparently worse: "Ship operations at high speeds cause vibrations that make accurate use of the 57 mm gun very difficult," Gilmore finds. Worse news for the Freedom: Its integrated weapons systems and air/surface search radar have "performance deficiencies" that affect the ship's "tracking and engagement of contacts."

This is supposed to be a time of heraldry for the LCS. In March, the Freedom will head to Singapore for eight months as a harbinger of the Obama administration's much-touted strategic refocusing on Asia and the Pacific Ocean. It's also meant to spur confidence in the Navy's first new type of ship in two decades, an expensive design that still faces serious questions about just what its role in the Navy is. Its crew in San Diego is confident: "The guns shoot, we conduct [maritime interdiction] operations, and we move fast," Cmdr. Patrick Thien recently told Navy Times' Christopher Cavas. Vice Adm. Tom Copeland, who heads the Navy's surface fleet, last week called LCS an "integral and substantial part of our future force."

The Navy ultimately wants to buy 55 of the ships. When fully loaded with all its gear, the USS Freedom costs $670.4 million, according to an August report from the Congressional Research Service. (.pdf) The alternate design on the USS Independence runs $808.8 million

Fighting close to shore is only one of the missions that the LCS, a ship designed so the Navy can "plug and play" different sensors and weapons systems as technology improves, is expected to perform. Another is mine-hunting – which the Freedom won't do in Singapore. Problem is, the Pentagon's weapons testers gave the LCS' mine-hunting package a failing grade last year, and this one isn't much better.

This time around, Gilmore's office found that the MH-60 Seahawks intended to launch from the LCS minehunters can't "safely tow" the sonar suites that scan for underwater mines. So the Navy has scrapped the plan to put the "underpowered" helicopters aboard the LCS for minehunting. That's left a "gap in organic mine sweeping capability" on the LCS, the report states.

The Navy's plan to address that gap depends on the Unmanned Influence Sweep System, a semi-autonomous undersea robot that will spoof the acoustic and magnetic signals of big ships to compel the mines to detonate when Navy ships aren't in range. Problem is, as Danger Room reported earlier this month, the Navy is just getting ready to solicit industry bids to build the robot. That gap in mine-sweeping capability is likely to last years – and that's if the robot successfully speeds through the development and acquisition process.

The report isn't all bad news for the LCS. It finds that the Navy has fixed a crack in the hull of the Freedom. And it's installing an anti-corrosion system on the Independence that should prevent a strange and aggressive corrosion discovered in 2011.

It's not as if the Navy isn't aware of the problems with the ship: Adm. Jonathan Greenert, the chief of naval operations, appointed a high-ranking panel in August to get the LCS up to snuff (.pdf); its action plan is due at the end of January.

"Independent reviews by the [Pentagon testing] group occur regularly," Lt. Courtney Hillson, a Navy spokesperson, told Danger Room. "The group was given unlimited access to information and the Navy was an active participant in the process. The items highlighted in the report are all known issues – many of which the Navy was already in the process of addressing. As the program continues to mature, we expect additional recommendations to be incorporated."

Singapore isn't exactly a combat zone. But the testing report makes clear that grounds for skepticism about the Navy's newest warship remain — especially if pirates decide to challenge it on the open water.