Dogged by cost overruns, design glitches and debates about the vessel’s ability to withstand modern sea battle, the Navy’s Littoral Combat Ship program has faced its share of controversy.

But the Pentagon’s decision to scale back the size of the LCS fleet also led to the Navy buying more helicopters than it needs, costing taxpayers $1.4 billion — plus ongoing charges to store the choppers ― according to a report last month by the Defense Department’s Inspector General.

Initial plans drafted in 2007 called for the Navy to build 55 of the multi-mission warships but as the LCS program fell victim to delays, escalating costs and other headaches, the Pentagon winnowed the fleet to 32 vessels.

And although the Navy had received only 11 littoral combat ships by early 2018, the pace for purchasing new MH-60 Seahawk helicopters for the vessels never abated, IG determined.

For reasons left unexplained in the report, no one told the Navy office in charge of procuring the aircraft that the size of the LCS fleet had dropped.

“There is not a formal process to notify dependent weapon system’s divisions of changes in program status,” investigators wrote.