Extending the deployment of the Harry S. Truman strike group by just one month could end up costing the government tens of millions more dollars because of the inefficiency caused by shifting plans, one analyst said.

Bryan Clark, a senior fellow with the Center for Strategic and Budgetary Assessments, said that extending a carrier’s time at sea could raise costs by creating more wear and tear on the ship. The larger cost increase, however, comes from shipyards redoing their plans now that they will be receiving the ship for its maintenance period a month later.