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Das Book

Tired of looking like a nerd using printed tables & charts? Miss the old Nomograph mod from the Silent Hunter series? Then look no further, Das Book is here.

The actual title of the book is "Tables and Charts for the Uboat Commander". It contains a collection of useful information for those who choose to play the game in a more realistic/historical manner.

See screenshots for book contents.

Save game compatible.

• The Book is accessible in Map, Periscopes, UZO and Binocular views.
  
  
• There are 2 instances of the book, 1 for the Map view and 1 for Periscope views. You can set each instance to a specific page/position/size. It will be remembered until game reload.
  
  
• Move the book around screen via left-click and drag.
  
  
• Right-click the book to quickly close it as an alternative to the toggle buttons.
  
  
• Resize the book by dragging the scale icon in the lower right corner.
  
  
• The book has a Table of Contents page to quickly select the desired Table/Chart. There is also a shortcut at the bottom of each page to quickly return to the ToC.
  
  
• Each page has a left/right arrow to manually scroll through the book.
  
  
• The book in the Map view has a checkbox in the Table of Contents to toggle the Nomograph. You can drag the Nomograph by the wooden handle. The scale icon is on the right side of the wooden handle.
  
  
• You can move the Toggle Buttons via right-click and drag.
  
  
• In the event you accidentally drag the book or the nomograph off-screen, you can middle-click on any of the corresponding toggle buttons to reset their position & size to default.
  
  
• Periscope range tables work for both the Realistic & Extended periscope magnification settings, although the extended preset is meant to only be used with the More Accurate Periscope Sights mod by DarkRaven. See below for more context on which of the two tables to use.
  
  Note about scale icons: After the first time you hover over them, they will disappear and only reappear when you mouse over them. This is by design.

This section follows the book's table of contents. Click the links to access the corresponding table guide. Guide links will be updated as they are completed.

    A. Distance Covered At Known Speed [Guides coming soon]
        I. Speed-Distance-Minutes
        II. Speed-Distance-Hours

   B. Distance from Height
        I. Realistic Periscope
        II. More Accurate Periscope

    C. Velocity Tables
        I. Velocity via Fixed wire
        II. Velocity Correction (Fixed Wire)
        III. Velocity via Constant Bearing [Guide coming soon]
        IV. Velocity via Change in Bearing [Guide coming soon]

    D. Miscellaneous
        I. Convoy/Ship Interception (YouTube video)
        II. Shipping Route Map

In the meantime, check out Drexack's Reddit post that covers the majority of the tables used in the book here.

Nomograph:
Tutorial 1
Tutorial 2

We chose to include two distance tables for what we believe are the most used and most sensible periscope arrangements.

The 1st table labeled "Realistic Periscope" references the historical 1/16° graticule, hence it is meant to only be used with the periscope magnification set to Realistic. This table works with the default/vanilla periscope. If you want a better experience using the realistic preset, use the Realistic Periscope Sight mod as it features a wider view and slightly more accurate graticule.

Do not use the More Accurate Persicope Sights mod with the realistic preset if you want to use the "Realistic" table. It changes the graticule to be in mrad, which will make all readings off by 9%.

The 2nd table labeled "More Accurate Periscope" references an mrad graticule. It is meant to only be used with the More Accurate Periscope Sights mod with a periscope magnification setting of Extended. No support for vanilla periscope magnification set to extended without this mod since it is a "easy mode" setting not within the scope of Das Book.

• The convoy map is a temporary placeholder.
  
  
• I created this map based off of the Silent Hunter 3 map. Sadly, SH3 has more shipping routes than UBOAT. Some routes will not correspond with UBOAT.
  
  
• The routes are cumulative from 1939-1945. Some routes will only be availble at certain dates or not available at all. Some traffic may also appear outside of these lanes.
  
  
• Use it as a generic reference when looking for potential hunting grounds.
  
  The map will be updated in the near future to cover only the actual routes depicted in UBOAT.

To remove swastika:

• Navigate to the mod folder:
  \Steam\steamapps\workshop\content\494840\3419126557
  
  
• In the Data Sheets folder, open Config.xlsx
  
  
• Change the Censor value from False to True. Note, case sensitive.
  
  
• Save/close file.

You can change this setting without the need to start a new game. Setting must be reapplied whenever a mod update occurs.

Drexack - Provided excel tables used in this book. Steam guide creation. Advisor for proper German word usage and overall feedback. Bug testing and fixing.

ii (Seb) - Initial page handling code from his FlagUI.cs script.

Alpheratz - Author of the Convoy/Ship Interception Table that I re-created in this book.


© 2025 Darkness. All rights reserved.

The artwork/textures used in this mod are the exclusive property of Steam user: DARKNESS

You are not permitted to redistribute, modify, or use any part of this mod without explicit written permission from the author. Users who steal content from this mod without permission/credit will be reported to Steam.