What was the operational depth of the USS Squalus when it sank?

The USS Squalus sank at a depth of 243 feet of seawater (FSW). This depth is significant as it highlights the challenges faced during the rescue operations, which were compounded by the submarine's location on the seafloor. Understanding the operational depth at which the Squalus sank is essential for appreciating the rescue techniques utilized at that time. The successful recovery of the crew from such a depth tested the limits of underwater rescue capabilities and technology available in the late 1930s, ultimately leading to advancements in submersible rescue operations. The strategic considerations and equipment needed for a rescue mission at this depth are pivotal elements in the study of undersea rescue practices.