Amagi-class battlecruiser

E17489

The Amagi-class battlecruiser was a planned class of fast capital ships for the Imperial Japanese Navy in the early 20th century, whose members were ultimately cancelled or converted following the Washington Naval Treaty and the Great Kantō earthquake.

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Observed surface forms (1)


Statements (47)

Predicate Object
instanceOf battlecruiser class
planned warship class
armamentCaliber 16.1 inch main guns (planned)
constructionStatus cancelled
partially completed hulls
conversionBasis Akagi aircraft carrier hull based on Amagi-class design
conversionOfShip Akagi
surface form: Akagi converted to aircraft carrier
countryOfOrigin Japan
surface form: Empire of Japan
designedAs fast capital ship
designedBy Imperial Japanese Navy Technical Department
designedDuring World War I era
interwar period
designedFollowing Eight-Eight Fleet Plan
designInfluencedBy Tosa-class battleship design
era pre–World War II Japanese naval expansion
eventInfluencedBy Great Kanto earthquake
surface form: Great Kantō earthquake
fateOfClass cancelled or converted
hasPlannedShip Akagi
surface form: Japanese battlecruiser Akagi

Japanese battlecruiser Amagi
Japanese battlecruiser Atago
Japanese battlecruiser Takao
influencedDevelopmentOf Japanese aircraft carrier force
intendedRole fast wing of battle fleet
fleet scouting
namedAfter lead ship Amagi
navalArchitectureType all-or-nothing armor scheme (planned)
navalTreatyCategory capital ship
notableFor never completed as designed
numberOfPlannedShips 4
operator Imperial Japanese Navy
partOf Amagi-class battlecruiser self-linksurface differs
surface form: Imperial Japanese Navy battlecruiser program
plannedArmorScheme improved protection compared to earlier Japanese battlecruisers
plannedDisplacement about 41,000 tons standard
over 47,000 tons full load
plannedMainArmament 410 mm naval guns
plannedMainBatteryConfiguration 10 × 410 mm guns in five twin turrets
plannedMaximumSpeed approximately 30 knots
plannedPropulsion oil-fired boilers
steam turbines
precededBy Kongō-class battlecruiser
reasonForCancellation Great Kantō earthquake damage
Washington Naval Treaty limitations
relatedTo Tosa-class battleship
statusOfLeadShip scrapped after earthquake damage
statusOfOtherShips scrapped on slipways
timePeriod early 20th century
treatyAffectedBy Five-Power Treaty
surface form: Washington Naval Treaty

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Akagi originalType Amagi-class battlecruiser
Amagi-class battlecruiser partOf Amagi-class battlecruiser self-linksurface differs
this entity surface form: Imperial Japanese Navy battlecruiser program