What makes a submarine the best of its era? Explore more than a century of submarine evolution, from USS Holland and Germany’s U-35 to the Balao class, USS Nautilus, Ohio class, and Sweden’s Gotland class.

Warfront Explained examines six influential submarines and submarine classes that shaped naval history. Discover how practical design, wartime endurance, nuclear propulsion, strategic deterrence, and air-independent propulsion changed what navies could accomplish beneath the waves.

Each earned its place for a different reason. Holland helped establish an organized submarine service. The Balao class refined a dependable wartime design. Nautilus transformed underwater endurance, while Gotland demonstrated the value of a smaller submarine designed for a specific mission.

This is more than a comparison of size, speed, or firepower. These stories reveal how engineering, crew training, maintenance, and purpose determine a submarine’s effectiveness—and why no single design is best for every task.

Which submarine deserves the title of best in its era, and why? Share your pick in the comments, and subscribe to Warfront Explained for more naval history and military engineering explained.

CHAPTERS / TIMESTAMPS :

00:00 Introduction — What Makes a Submarine the Best?
01:04 USS Holland — From Experiment to Naval Service
03:23 U-35 — Submarine Warfare and Global Shipping
05:45 Balao Class — Refining the Wartime Fleet Submarine
08:19 USS Nautilus — The Nuclear Propulsion Breakthrough
10:33 Ohio Class — Endurance and Nuclear Deterrence
12:53 Gotland Class — A Smaller Submarine with a Specialized Role
15:14 Conclusion — The Right Submarine for the Mission

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