KITTERY (AP) – Navy tradition suggests that the spirit of the ship’s sponsor goes to sea with the crew of a ship.

So the USS New Hampshire, an attack submarine built in Connecticut and Virginia that was commissioned on Saturday, carries with it a spirit of perseverance and determination.

Cheryl McGuinness, whose husband was a co-pilot aboard a jetliner that crashed into the World Trade Center, gave the command: “Crew of the New Hampshire, come aboard and bring our ship to life.”

With those words, sailors answered “aye aye ma’am!” in unison before marching down the gangway and onto the submarine, where they stood at attention. The snorkel and masts rose from the submarine’s conning tower and its horn sounded, startling some sea gulls.

Veterans organizations lobbied the Navy to appoint McGuinness, of Portsmouth, N.H., to serve as sponsor. Her husband Tom, a former Navy fighter pilot, was co-pilot of American Airlines Flight 11, which was hijacked and flown into the World Trade Center North Tower on Sept. 11, 2001.

She said she learned from her devastating loss to pick herself up, and to keep moving forward. She launched a ministry, Beauty Beyond the Ashes, and has since remarried.

“When you have tough times in life, there’s a way through it,” she said before the ceremony. “Not only a way through it, but you can go further in your life than you ever thought before if you were willing to go through the pain, to persevere, and push your way through it.”

It was a historic event: The Virginia-class submarine is the third Navy warship to bear the name New Hampshire, and it was commissioned into service at Portsmouth Naval Shipyard, the nation’s oldest Navy shipyard. The last commissioning held here was the USS Maine in 1995.

About 3,000 invited guests were allowed onto the shipyard on an island between Maine and New Hampshire, and thousands more watched on a giant video screen on the mainland in Portsmouth.

The submarine was named for the Granite State after a letter-writing campaign five years ago by third-graders in Dover, N.H. The previous ships named for New Hampshire were a sailing ship that served in the Civil War and a battleship that served in World War I.

Crew members said they were honored to have McGuinness as sponsor of the newest New Hampshire. Her initials are welded on a hull plate that’s on display in the sub’s mess hall.

“True to the spirit that secured liberty for this nation, Cheryl tackled her loss with remarkable strength and character, and in doing so gave us hope and encouragement,” said Cmdr. Michael J. Stevens, the ship’s commanding officer, told the spectators.

The USS New Hampshire, which bears the state’s motto “Live Free or Die,” is the fifth in the Virginia class of nuclear-powered attack submarines.

The high-tech ship shatters many of the stereotypes of submarines. For instance, there’s no periscope. Instead, they have “photonic masts” controlled by a joystick. And gone are the old-school propellers. Like the Seawolf-class subs, they use water-jet propulsion.

With a crew of 137 sailors and officers, Virginia-class submarines were designed to fill a number of roles, including sinking ships, launching cruise missiles, gathering intelligence and depositing Navy SEALs in trouble spots via minisub carried piggyback-style.