These simulations revealed vulnerabilities in carrier strike group defenses, particularly against submarines with air-independent propulsion systems. -Notably, a Canadian Oberon-class submarine ...

The old Oberon subs still needed to be replaced if Canada was to remain with an underwater combat capability. This resulted in the U.K. fobbing off their four mothballed Upholder-class submarines ...

These new submarines were subjected to strict design guidelines, and while they did perform acceptably, the record is marred by an early disastrous friendly-fire incident. For its exceptional ...

The O'Brien is an Oberon-class submarine specially built for the Chilean Nay at Scott's Shipbuilders Engineering Co. Ltd., Greenock, Scotland and launched on December 1972. She arrived in Punta ...