Type B
I.15

 

I.26 I.54 I.58

 

 

Class I.15 Variant B.1

Boats in class  20 Units - I.15   I.26   I.30   I.37   I.17   1.23   I.29   I.31   I.36   I.19   I.25   I.28   I.33   I.35   I.21   I.27   I.32   I.34   I.38   I.39
Normal displacement surfaced  2.589t
Normal displacement submerged  3.654t
Machinery  2 x Diesel
2 x electric
Maximum power Surfaced/Submerged  12.400hp/2.000hp
Speed Surfaced/Submerged  23,6 knots/8 knots
Armament  1 x 140mm L/50 Gun
2 x 25mm AA
1 x Floatplane
Torpedeo Tubes  6 x 533mm/17 Torpedoes
Length  108,7m
Beam  9,3m
Height  5,14m
Complement  101
Year of construction  1939-1943
Fate  
Builder  I.15   I.26   I.30   I.37 - Kure Dockyard 1939-1942
I.17   1.23   I.29   I.31   I.36 - Yokosuka Dockyard 1939-1942
 I.19   I.25   I.28   I.33   I.35 - Mitsubishi Kobe 1939-1942
I.21 - Kawasaki Kobe 1939-1940
I.27   I.32   I.34   I.38   I.39 - Sasebo Dockyard 1940-1943

Class I.40 Variant B.2

Boats in class  6 Units - I.40   I.41   I.42   I.43   I.44   I.45   I.46
Normal displacement surfaced  2.624t
Normal displacement submerged  3.700t
Machinery  2 x Diesel
2 x electric
Maximum power Surfaced/Submerged  11.000hp/2.000hp
Speed Surfaced/Submerged  23,6 knots/8 knots
Armament  1 x 140mm L/50 Gun
2 x 25mm AA
1 x Floatplane
Torpedeo Tubes  6 x 533mm/17 Torpedoes
Length  108,7m
Beam  9,3m
Height  5,20m
Complement  101
Year of construction  1941-1944
Fate  
Builder I.40   I.41   I.42 - Kure Dockyard 1941-1944
I.43   I.44   I.45 - Sasebo Dockyard 1941-1944
I.46 - Yokosuka Dockyard 1941-1944

Class I.54 Variant B.3

Boats in class  3 Units - I.54   I.56   I.58
Normal displacement surfaced  2.607t
Normal displacement submerged  3.699t
Machinery  2 x Diesel
2 x electric
Maximum power Surfaced/Submerged  4.700hp/1.200hp
Speed Surfaced/Submerged  17,7 knots/6,5 knots
Armament  1 x 140mm L/50 Gun
2 x 25mm AA
1 x Floatplane
Torpedeo Tubes  6 x 533mm/19 Torpedoes
Length  108,7m
Beam  9,3m
Height  5,20m
Complement  101
Year of construction  1942-1944
Fate  
Builder I.54   I.56   I.58 - Yokosuka Dockyard 1942-1944