WASHINGTON – The Navy has fired six commanding officers since the start of this year — triple its usual monthly rate.

The fired commanding officers included a foul-mouthed captain who was dismissed for subjecting her crew to “cruelty and maltreatment” aboard a warship in the Pacific.

Capt. Holly Graf, commander of the USS Cowpens, a guided-missile cruiser, was relieved of duty Jan. 13 after an investigation found she cursed so much at her 400-member crew that even the sailors were intimidated.

According to the Navy inspector general’s report, officers complained that their captain humiliated them in front of the rest of the crew by calling them “idiots” and “stupid” as she spat a stream of obscenities.

One noncommissioned officer said Graf treated him like a toddler, forcing him to take a “time out” by standing alone in an empty watch room.