Financial support from federal and state agencies helped Gladding-Hearn Shipbuilding, Duclos Corporation, in undertaking capital projects that have made its shipyard operations more efficient and safer.With a Small Shipyard Grant from the U.S. Maritime Administration (MARAD), the yard replaced heavy bi-fold doors on its 12,000 square foot Walker St. facility. It took two cranes and as many as six employees to open the doors, explained Peter Duclos, shipyard co-president and director of business development.