Groton — Electric Boat on Friday delivered the nuclear-powered attack submarine Vermont (SSN 792) to the U.S. Navy.

“The shipbuilders of Electric Boat are proud to deliver Vermont to our Navy, an extraordinarily capable ship,” company President Kevin Graney said in a statement. “I am pleased to report that the Vermont has received some of the highest quality ratings in the history of the Virginia program. We wish Vermont and her crew a long and distinguished career in defense of our nation.”

Vermont is the first of the 10-ship group of Virginia-class attack submarines known as Block IV. Each costs about $2.7 billion to build. Six of the boats will be delivered by EB and the other four will be delivered by Newport News Shipbuilding in Virginia. The two private shipyards build these submarines together under a teaming arrangement, with each alternating delivery. The last boat in Block IV is expected to be delivered to the Navy in March 2024.

Virginia-class submarines are capable of traveling in excess of 25 knots and can dive to a depth greater than 800 feet, while carrying Mark 48 advanced capability torpedoes and Tomahawk cruise missiles.

The Navy postponed indefinitely the commissioning ceremony for the Vermont, which was set to take place in Groton on Saturday, given the COVID-19 outbreak.

Commissioning ceremonies, which typically attract thousands of guests, including dignitaries, crew members and their families, and shipbuilders, mark a ship’s entry into active service.