Alion Science and Technology on August 9 said its Canadian subsidiary submitted its final bid to the Canadian government for that country’s new warship program, which is worth between $42 billion and $46 billion for 15 ships.

Alion, one of three bidders for the Canadian Surface Combatant (CSC), is offering a solution based on the Dutch De Zeven Provincien-class frigate, which is built by Netherlands-based shipbuilder Damen and has been in use for more than 10 years. All bidders are offering solutions based on existing military ship designs as required by Canada.

“We provide a world class combatant that is a proven, affordable, off-the-shelf solution,” Bruce Samuelson, chief operating officer of Alion, said in a statement. “Our offering is focused on the Royal Canadian Navy’s state requirements and will generate jobs and innovation across Canada.”

The German companies ATLAS Elektronik and Hensoldt are providing systems and sensors for the combat system in Alion’s proposal. Other suppliers include the Canadian operations of L3 Technologies [LLL], Raytheon [RTN], Leonardo DRS, and Germany’s Rheinmetall. Leonardo DRS is a U.S.-based business of Italy’s Leonardo.

Other bidders for the CSC program include teams led by Lockheed Martin [LMT] and Spain’s Navantia.

The CSC ships will replace Iroquois-class destroyers and Halifax-class multirole frigates.

Canada is expected to select a winner later in 2018. Initial deliveries are expected to begin in 2024 or 2025.