Japanese battleship Fusō

Also known as: Fuso · IJN Fusō · Japanese battleship Fuso

Definition

Fusō was a dreadnought battleship of the Imperial Japanese Navy — the lead ship of the two-ship Fusō-class, built at Kure Naval Arsenal (laid down March 11, 1912, launched March 28, 1914, commissioned November 8, 1915) and armed with twelve 356-millimeter (14-inch) guns in six twin turrets set in the class’s unusual 2-1-1-2 arrangement, with the middle turrets separated by a funnel rather than superfiring. Her only sister was Yamashiro. Rebuilt twice between the wars into the pagoda-mast configuration that made the class visually famous, she displaced 29,326 long tons standard as built and about 34,700 long tons by 1944 on a hull 212.75 meters long, and spent most of the Pacific War in training and support duties before she was swept into the sortie that ended at Surigao Strait. (Wikipedia — Japanese battleship Fusō, Wikipedia — Fusō-class battleship)

Her end came in Philippine waters as part of the Battle of Surigao Strait, the night of October 24–25, 1944 — the southern engagement of the Battle of Leyte Gulf, recorded in full in this wiki’s Battle of Surigao Strait entry. Sailing in Vice Admiral Shoji Nishimura’s Southern Force (aboard her, under Rear Admiral Masami Ban, Nishimura having shifted his flag to Yamashiro on October 4), Fusō was torpedoed at about 03:09 on October 25 — a hit credited in the standard account to the destroyer USS Melvin — and sank between 03:38 and 03:50, before Oldendorf’s battle line ever opened fire. Of her crew only ten men survived the war, with casualties estimated at about 1,620; the wreck was located in November 2017, inverted on the seabed of the strait. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)

Identities

Source	Identifier	URL
Wikipedia	Japanese battleship Fusō	https://en.wikipedia.org/wiki/Japanese_battleship_Fus%C5%8D
Wikidata	Fusō (Q1137653)	https://www.wikidata.org/wiki/Q1137653
DBpedia	Japanese_battleship_Fusō	https://dbpedia.org/page/Japanese_battleship_Fus%C5%8D
ProductOntology	N/A	N/A
Wiktionary	N/A	N/A
Library of Congress Subject Headings (LCSH)	N/A	N/A
MeSH	N/A	N/A
NCBI Taxonomy	N/A	N/A
AGROVOC	N/A	N/A
Google Scholar	Japanese battleship Fusō Fuso-class Kure 1915 reconstruction Surigao Strait Melvin torpedo wreck 2017	https://scholar.google.com/scholar?q=%22Japanese+battleship+Fuso%22+Surigao+Strait
ConceptNet	N/A	N/A
OpenCyc	N/A	N/A

Also Known As

Fuso
IJN Fusō
Japanese battleship Fuso

Examples and Analogies

Six turrets, no gun battle: Fusō‘s documented combat record contains no surface engagement in which her main battery fought an enemy ship — she covered the Pearl Harbor operation at a distance, screened the Aleutians occupation at Midway, trained cadets, and was finally lost to destroyer torpedoes in the opening phase of Surigao Strait, three-quarters of an hour before the American battleships opened radar-directed fire at 03:53. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)
The pagoda mast as a vertical statement: the interwar reconstructions piled the class’s bridges into the tower-like pagoda mast — among the tallest battleship superstructures ever fitted — the visible sign of a design philosophy that kept adding fire-control stations, armor, and anti-aircraft guns to a 1912 hull rather than building new ships. (Wikipedia — Fusō-class battleship)
A class that died together: Fusō and Yamashiro, the only ships of their class, were both sunk within the same hour of the same night in the same strait, each with only ten known survivors — the only Japanese battleships in the action this wiki’s Battle of Surigao Strait entry records as the last battleship-versus-battleship engagement in history. (Wikipedia — Fusō-class battleship, Wikipedia — Battle of Surigao Strait)
Verified data (construction, modernization, loss):
Built: Kure Naval Arsenal; laid down March 11, 1912; launched March 28, 1914; commissioned November 8, 1915 (Wikipedia — Japanese battleship Fusō)
Class: two ships — Fusō (lead) and Yamashiro (Yokosuka Naval Arsenal, completed March 31, 1917); 29,326 long tons standard as built, 34,700 long tons by 1944, 39,154 long tons deep load after reconstruction (Wikipedia — Fusō-class battleship)
Armament: twelve 45-caliber 14-inch (356 mm) Vickers guns in six twin turrets (2-1-1-2); secondary battery originally sixteen 152 mm casemate guns; by 1944 four twin 127 mm dual-purpose mounts and up to 95 × 25 mm anti-aircraft barrels (Wikipedia — Japanese battleship Fusō)
Reconstructions: two phases during the 1930s (the second 1937–1941) — pagoda-mast superstructure, torpedo bulges, stern lengthened 7.62 m, boilers cut from 24 to 6, turbines replaced for 75,000 shp and about 24.5 knots, main-gun elevation raised to +43 degrees (Wikipedia — Japanese battleship Fusō, Wikipedia — Fusō-class battleship)
WWII service: distant cover for the Pearl Harbor attack; Aleutian Support Group at Midway; training ship for the Naval Academy at Etajima (November 15, 1942 – January 15, 1943) and at Lingga; rescued 353 survivors of the battleship Mutsu‘s explosion on June 8, 1943 (Wikipedia — Japanese battleship Fusō)
Loss: torpedoed about 03:09, October 25, 1944, starboard side amidships (one or two hits, “possibly fired by the destroyer Melvin“); sank between 03:38 and 03:50; about ten survivors, casualties estimated at 1,620; stricken from the register August 31, 1945 (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)
Wreck: found November 25, 2017 by the research vessel Petrel — inverted, in one piece with the hull buckled amidships, in 185 meters of water, the pagoda mast detached and lying apart (Wikipedia — Japanese battleship Fusō)

Usage Scenarios

1. Studying the Battle of Surigao Strait and Leyte Gulf

Fusō is the first of the two battleships lost in the strait — torpedoed in the ~03:00 destroyer attacks that opened the destruction of Nishimura’s force, before the radar-directed gun action — and her loss, Yamashiro‘s, and the escape of Shigure are the fixed points of the southern engagement this wiki’s Battle of Surigao Strait, Shoji Nishimura, and Jesse Oldendorf entries document. (Wikipedia — Battle of Surigao Strait)

2. Battleship-Design and Modernization History

The class is a standard case study in first-generation super-dreadnought design and its limits: the six-turret layout lengthened the hull and constrained arcs of fire and machinery arrangement, and the interwar reconstructions — bulges, reboilering, re-engining, elevation increase — illustrate how far a 1912 hull could be stretched, and at what loss of speed, before the type was obsolete. (Wikipedia — Fusō-class battleship, Wikipedia — Japanese battleship Fusō)

3. Maritime Archaeology in Philippine Waters

The 2017 discovery of the wreck by the Petrel expedition — the same privately funded deep-water program that located Musashi in the Sibuyan Sea in 2015, as this wiki’s Japanese battleship Musashi entry records — makes Fusō a documented deep-water site in a working Philippine waterway, and a comparison case for how such wrecks are found, surveyed, and regulated. (Wikipedia — Japanese battleship Fusō)

4. Tracing the Wartime Training Fleet

For historians of the Imperial Japanese Navy’s manpower crisis, Fusō‘s middle war years — cadet training at Etajima, the Lingga anchorage, auxiliary duties — document how the older battleships were actually employed after 1942: as schools and flagships-in-waiting rather than fighting units, until the fleet’s final sortie recalled them to the line. (Wikipedia — Japanese battleship Fusō)

Strategies

Keep the two sisters and the two commands distinct: Yamashiro, not Fusō, was Nishimura’s flagship at Surigao (his flag moved to her on October 4, 1944), and Fusō died in the destroyer phase while Yamashiro died under the battle line’s guns about 04:20 — accounts that blur the two ships or their admirals misread the night. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)
Carry the sinking’s two accounts together: the traditional bisection narrative (Morison; popularized by Toland) and the survivor-testimony capsize account (Ogawa; argued by Tully) are both in the standard references — the honest citation states both, and adds that the 2017 wreck survey found the hull in one piece. (Wikipedia — Battle of Surigao Strait, Wikipedia — Japanese battleship Fusō)
Anchor the night by clock times: PT-boat gauntlet from 22:36 on October 24; destroyer torpedo attacks about 03:00–03:09; Fusō‘s loss 03:38–03:50; West Virginia‘s opening salvo 03:53; Yamashiro‘s about 04:20 — the timeline, preserved in this wiki’s Battle of Surigao Strait entry, is the analysis. (Wikipedia — Battle of Surigao Strait)
Use the documented register for cross-checking: the ship’s identity is fixed in the open data registers — Wikidata and DBpedia both carry her — and these, with the stricken date of August 31, 1945, anchor any citation trail. (Wikidata, DBpedia)

Security and Safety Measures

Respect for the war grave: roughly 1,620 of Fusō‘s crew died with her and remain in the strait; the standing naval convention treats such wrecks as seamen’s graves, to be left undisturbed — the principle this wiki’s Battle of Surigao Strait and Japanese battleship Musashi entries also carry. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)
Depth as the site’s protection: the wreck lies 185 meters down, far beyond ordinary diving and reachable only by remotely operated vehicles — depth itself functions as the security perimeter, as with the deep Leyte Gulf wrecks generally. (Wikipedia — Japanese battleship Fusō)
Wreck charts for a working waterway: Surigao Strait is a busy Philippine channel between Leyte and Mindanao; the battle imposes no constraint on passage, but documented wreck positions belong in the mariner’s file alongside the strait’s ordinary notices. (Wikipedia — Battle of Surigao Strait)
Source discipline on a night action: the details of Fusō‘s loss were contested for decades and were still being revised by survivor testimony into the 2000s — claims about the night should be checked against the latest scholarship rather than older popularizations. (Wikipedia — Battle of Surigao Strait)

Historical Context

Fusō was a product of the first dreadnought race: laid down at Kure in 1912, when every major fleet was building ever-larger all-big-gun ships, she commissioned in November 1915 as one of the most heavily armed battleships afloat — twelve 14-inch guns when British and American contemporaries carried ten or fewer — on a hull that was already at the practical limits of the six-turret layout. The Washington treaty era barred replacement, so both sisters were rebuilt instead, in two phases across the 1930s: pagoda-mast towers, anti-torpedo bulges, a lengthened stern, new oil-fired boilers and turbines (24 boilers reduced to 6, 75,000 shp for about 24.5 knots), and main guns elevated to reach 35,450 yards. (Wikipedia — Japanese battleship Fusō, Wikipedia — Fusō-class battleship)

The Pacific War found her a second-line unit. She covered the Pearl Harbor strike force at a distance in December 1941, joined the Aleutian Support Group during Midway in June 1942, and then settled into the training role — the Naval Academy at Etajima from November 1942, the Lingga anchorage later — interrupted by the rescue of 353 men from the exploded Mutsu in June 1943; she was even considered for conversion to a hybrid battleship-carrier before the Ise-class ships were chosen instead. On September 23, 1944 she became flagship of Battleship Division 2 under Vice Admiral Nishimura, who moved to Yamashiro on October 4; bombed by aircraft from USS Enterprise on October 24 (her catapult and floatplanes destroyed), she sailed that night into the strait. At about 03:09 on October 25 one or two torpedoes — credited to Melvin among the American destroyers that swarmed both flanks — hit her starboard side amidships; she fell out of formation and sank between 03:38 and 03:50. The traditional account had her broken in two, the halves burning (Morison recorded the bow destroyed by Louisville‘s gunfire and the stern sinking off Kanihaan Island); survivor Hideo Ogawa instead described her capsizing slowly to starboard shortly after 04:00, and Anthony Tully’s 2009 study argued she “upended and capsized within forty minutes.” Ten sailors survived and were repatriated after the war; the ship was struck from the register on August 31, 1945. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)

In 2017 the strait returned her to the record: on November 25 the Petrel expedition located the wreck inverted in 185 meters of water, in one piece with the hull buckled by the bottom impact and the pagoda mast detached — the survey evidence that bears directly on the decades-old argument over how she died. (Wikipedia — Japanese battleship Fusō)

Challenges and Controversies

How She Sank

The ship’s death was argued for decades: the long-standing account (Morison, and John Toland’s 1970 popularization) held that she exploded and broke in two, the halves surviving for some time, while survivor testimony recorded in 1945 — Ogawa’s “shortly after 0400 the ship capsized slowly to starboard” — and Tully’s 2009 analysis describe progressive flooding and a capsize within about forty minutes. The 2017 wreck survey, which found the hull in one piece, inverted and buckled amidships, is the strongest evidence yet for the capsize account. (Wikipedia — Battle of Surigao Strait, Wikipedia — Japanese battleship Fusō)

Who Torpedoed Her

The standard credit goes to USS Melvin, but the references carry it with qualification — the hit or hits at about 03:09 came from a massed destroyer attack on both flanks, and the article’s own wording is “possibly fired by the destroyer Melvin,” with two or possibly three torpedoes claimed to have struck. Attribution of the sinking is a probability statement, not a certainty. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)

The Casualty Count

The estimated 1,620 dead and ten survivors are the standard figures, but the count shares the thinness of the whole night’s record: no separately established Japanese tally for the ship survives the sources, and any more precise number should be flagged as an estimate with its claimant — the caution this wiki’s Battle of Surigao Strait entry attaches to all the strait’s casualty figures. (Wikipedia — Japanese battleship Fusō, Wikipedia — Battle of Surigao Strait)

The Wreck, Found

The November 2017 discovery by the Petrel — a privately funded foreign expedition, as with Musashi in 2015 — raises the same Philippine jurisdiction questions this wiki’s Musashi entry records for deep-water military wrecks in national waters: the site is a war grave in a Philippine strait, and any future activity over it runs through Philippine rules. (Wikipedia — Japanese battleship Fusō)