Athwartships Created OnFebruary 5, 2018byCult of Sea Print You are here: Glossary A Athwartships < Back to Glossary IndexAt right angles to the fore-and-aft line of the vessel (sideways-across). Related:Arrived shipHog (Hogging)Duct KeelDreadage or Dreading ClauseCollision BulkheadFree in and out (FIO)