02 I-14 and I-400

The aircraft carrying submarine I-14 alongside the 575ft Submarine Tender Proteus. Notice the round hanger door ahead of the conning tower and the catapult launching ramp running to the forward end of the sub. Look closely at the front of the launching ramp and see the 2 crewmen to get a sense of the size of the sub. The I-14 is 373 feet long and and carried 2 aircraft in its hangar. If you look closely you can see I-400 between I-14 and the Proteus. The I-400 was 400 feet long and carried 3 aircraft in its 115 foot watertight hangar. These were the largest submarines in the world at the time.

This sub was brought to you by the nice folks at Kawasaki.

I-400 Submarine Specifications

The I-400 is a WWII Japanese Aircraft Carrying Submarine. The I-400's specifications are:

Length: 400 Feet
Crew: 191
Number of heads: 1 with 2 squat toilet/holes in the deck above a septic tank
Number of Rats Removed: 50 bucketloads after post war fumigation
Displacement: Surface - 3,500 tons / Submerged - 5,220 tons
Hangar Dimensions: Length - 115 feet Diameter - 15 feet
Catapult Ramp Length: 85 feet
Max Speed: Surface - 18.7kts (21.5mph)/ Submerged - 6.5kts (7.5mph)
Range: 42,500 statute miles at 14kts, 69 miles submerged at 3kts
Fuel Capacity: gallons of diesel fuel
Diving Depth: test- 330 feet/ emergency -?
Armament:
 20 21" torpedoes for 8 bow tubes
 1 14cm deck gun
 10 25mm Anti Aircraft Guns
 3 Serian seaplane bombers
Power Plant: Four 1,900hp diesel engines driving two 1,200hp electric motors driving 2 screws
Launching Date: December 30, 1944 Kure Dock Yards