The U-Boat Commander's Handbook

The submarine commander's handbook, known by its German abbreviation "U.Kdt.Hdb.," represents a significant primary source document from World War II naval warfare. This English translation by E. J. Coates makes accessible a manual that was originally produced by the German Kriegsmarine to guide U-boat commanders through the tactical, technical, and operational aspects of submarine warfare during one of history's most intense naval campaigns.

This handbook served as an essential reference for commanders of German submarines operating primarily in the Atlantic theater. The document provides insight into the operational doctrine, tactical procedures, and technical knowledge that German naval command expected its submarine officers to master. The translation work by Coates has preserved this material for English-speaking researchers, military historians, and enthusiasts interested in understanding the German perspective on submarine operations during the Second World War.

The content of the handbook covers a comprehensive range of topics essential to submarine command. These include technical specifications and operational characteristics of various U-boat types, procedures for diving and surfacing, navigation methods, attack tactics against merchant and naval vessels, evasion techniques when facing anti-submarine warfare measures, and protocols for communication with naval command. The manual also addresses crew management, damage control procedures, and the maintenance requirements necessary to keep submarines operational during extended patrols.

What makes this handbook particularly valuable is its role as an authentic period document rather than a retrospective analysis. It reflects the actual training and operational guidance provided to German submarine commanders during the war, offering readers direct access to the doctrines and methods employed by the Kriegsmarine. This authenticity distinguishes it from secondary sources that interpret or analyze submarine warfare through a contemporary lens.

The translation by Coates maintains the technical and procedural nature of the original document. The handbook's style is necessarily formal and instructional, befitting its purpose as a military manual. Readers approaching this material should expect detailed technical information presented in a straightforward manner, rather than narrative storytelling or personal accounts. The focus remains firmly on procedures, tactics, and operational guidance.

For military historians and researchers studying the Battle of the Atlantic, this handbook provides crucial context for understanding German submarine operations. It helps explain the tactical decisions made by U-boat commanders and the strategic framework within which they operated. The manual illuminates the training and preparation that went into creating what became one of the most formidable submarine forces in naval history, at least during the early years of the war.

Students of military doctrine will find the handbook useful for comparative analysis. Examining how the German navy approached submarine warfare, trained its commanders, and organized its operational procedures offers insights that can be contrasted with the practices of other naval powers during the same period. The document serves as a case study in military training materials and operational doctrine development.

Technical enthusiasts and those interested in naval engineering will appreciate the specific information about U-boat systems and capabilities. The handbook includes details about the mechanical and technical aspects of submarine operation that would have been essential knowledge for any commander responsible for both the tactical deployment and technical maintenance of these complex vessels.

The handbook's historical significance extends beyond its immediate military applications. It represents a piece of the broader historical record of World War II, contributing to the documentation of how naval warfare was conducted during this period. As a primary source, it holds value for anyone seeking to understand not just what happened during the submarine campaign, but how German naval forces prepared for and executed their operations.

Readers should approach this material with appropriate context. As a military manual from a specific historical period, it reflects the priorities, technologies, and tactical thinking of its time. The handbook does not provide narrative context or historical analysis, leaving that work to the reader or to supplementary sources. Its value lies precisely in its nature as an unadorned operational document.

The submarine commander's handbook translated by E. J. Coates serves as an important resource for serious students of naval history and World War II. It offers direct access to the operational guidance that shaped German submarine warfare, presented in English translation for broader accessibility. While specialized in nature and technical in content, the handbook remains a valuable primary source for understanding one of the most significant naval campaigns of the twentieth century.