The Pentagon says Textron Inc. of New Orleans has a $175 million contract extension to build five more air-cushioned landing craft for the Navy.

The Pentagon’s daily list of contracts states that the work is expected to be completed by October 2020.

It says 30 percent of the work is in New Orleans and Metairie, 26 percent in Indianapolis and 15 percent in Camden, New Jersey. Small percentages of the work are to be done in Norway, Great Britain and seven U.S. sites around the country.

The craft, listed as Nos. 104 through 108, are being built as replacements for a fleet of such ships that are nearing the end of their 30-year service life.