Japanese SuperSub

Behind the Scenes Gallery

Browse images related to Secrets of the Dead: Japanese Supersub including photos of the original Japanese and United States naval crews, stills from animated renderings of the I-400 in action, and the final moment of surrender when the sub was captured.

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I-400 flying the black flag of surrender

Black Surrender Flag

I-400 flying the black flag of surrender
Credit: NARA
The captured I-400 with its new Anglicized lettering on the conning tower.

I-400 conning tower

The captured I-400 with its new Anglicized lettering on the conning tower.
Credit: NARA
Once they arrived at Pearl Harbor the captured supersubs were put in dry dock and carefully inspected.

I-400 in drydock

Once they arrived at Pearl Harbor the captured supersubs were put in dry dock and carefully inspected.
Credit: NARA
U.S. Navy and Japanese officers and crew members had to learn to communicate to the operate the captured subs.

US and Japanese crew together

U.S. Navy and Japanese officers and crew members had to learn to communicate to the operate the captured subs.
Credit: NARA
Captured I-400 submarine off the coast of Japan soon after the war's end.

I-400 harbored

Captured I-400 submarine off the coast of Japan soon after the war's end.
Credit: NARA
Animated rendering of an I-400 with planes in its hangers.

SuperSub's Hangars

Animated rendering of an I-400 with planes in its hangers.
Credit: Fluid Pictures Limited
U.S. Navy personnel inspect the I-400's huge watertight hangar.

The US Navy Inspects

U.S. Navy personnel inspect the I-400's huge watertight hangar.
Credit: NARA
I-400 submarine’s long launch ramp.

Supersub Launch Ramp

I-400 submarine’s long launch ramp.
Credit: NARA
Cutaway view of an I-400 submerged with three bombers in its water-tight hangar.

SuperSub underwater

Cutaway view of an I-400 submerged with three bombers in its water-tight hangar.
Credit: Fluid Pictures Limited
Animated rendering of an I-400 launching an attack on New York City.

SuperSub Animation

Animated rendering of an I-400 launching an attack on New York City.
Credit: Fluid Pictures Limited
Historians in the film’s "War Room" explore the secrets of Japan's secret I-400 aircraft-carrying submarine. From left to right: Eric Grove, Carl Boyd, Osamu Tagaya.

The War Room

Historians in the film’s "War Room" explore the secrets of Japan's secret I-400 aircraft-carrying submarine. From left to right: Eric Grove, Carl Boyd, Osamu Tagaya.
Credit: Anna Saraceno
Negotiations were tense aboard the super subs after surrender to the U.S. Navy.

A tense surrender

Negotiations were tense aboard the super subs after surrender to the U.S. Navy.
Credit: NARA
One of two I-400s under sail.

I-400 on surface

One of two I-400s under sail.
Credit: National Archives and Records Administration