Quick Navigation: Introduction Special Features Acclaims for SENSUIKAN! TROMs  * I-Class  * RO-Class  * HA-Class  * Midget Subs  * Midget Sub Carriers  * Sub Depot Ships Bibliography About the Authors

SENSUIKAN! Stories and Battle Histories of the IJN's Submarines (Updated 24 December 2011) By Bob Hackett and Sander Kingsepp (I-8 by Takeshi Yuki scanned from "Color Paintings of Japanese Warships")

Introduction 

The Tabular Records of Movement (TROMs) for the IJN's submarines - "Sensuikan" - on these pages were prepared by Bob Hackett and Sander Kingsepp from Japanese and American source materials. They include the TROMs for Japan's largest class "A" submarines - the so-called I-Boats and the medium class "B" RO-Boats.

Every effort has been made to provide the latest verified information on their movements and fates. Nevertheless, the nature of submarine warfare sometimes precludes positive identification of the exact time and place of losses at sea. In such cases, we have indicated that the best information available - both Japanese and American - indicates a probable loss at the date and time given.

Feel free to post any questions to me or Sander on the Discussion & Questions board. - Bob Hackett.

Special Features 

• AMERICAN PLANS EXPEDITION TO SALVAGE GOLD-LADEN JAPANESE WWII SUBMARINE by the Associated Press
• OPERATION TAN NO. 2: The Japanese Attack on Task Force 58's Anchorage at Ulithi by Bob Hackett and Sander Kingsepp
• YU-GO: The Japanese Plan for a Second Pearl Harbor Surprise Attack! by David Dickson, Bob Hackett and Sander Kingsepp
• Who Sank the SYDNEY? by Bob Hackett
• The Final Destruction of Japan’s Submarine Fleet by Bob Hackett and Derek Waller (revised 11/5/11)
  

Acclaims 

"For any author attempting to write about Japanese submarines and their operations during the Second World War one source above all others has consistently and reliably assisted this writer, making sure my dates, specifications, movements and skippers are all recorded correctly within the overall story. This is Bob Hackett and Sander Kingsepp's www.combinedfleet.com, a labour of love for the subject that is an invaluable reference source for researchers, filling in many of the gaps caused by the paucity of written material on Japanese submarines."

-DR. MARK FELTON, author of THE FUJITA PLAN: Japanese Attacks on the United States and Australia During the Second World War and YANAGI: The Secret Underwater Trade between Germany & Japan 1942-1945

"....of particular interest to those researching (Japanese) submarines is www.combinedfleet.com/sensuikan.htm by Bob Hackett and Sander Kingsepp."

-ROBERT C. STERN, author of THE HUNTER HUNTED: Submarine versus Submarine: Encounters from World War I to the Present

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Bibliography 

Please see the Bibliography of sources for the SENSUIKAN! pages

About the Authors 

Mr. Robert Hackett is a military historian and researcher. Retired from the United States Air Force and later from the aerospace industry, he resides in the United States.

Mr. Sander Kingsepp of Estonia is also a military historian and researcher. A talented linguist, Sander's translations of Japanese source materials have added immeasurably to these TROMs.

Bob and Sander prepared the TROMs on the IJN's submarines presented on the SENSUIKAN! pages and for the IJN's battleships and cruisers presented on the SENKAN! and JUNYOKAN! pages and are major contributors to the TROMs of various classes of auxiliaries and regular small combatant vessels detailed on TOKUSETSU KANSEN! and its related pages.

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