List of Japanese World War II navy bombs

This is a complete list of all aerial bombs used by the Imperial Japanese Navy during the Second World War.

Types
The Japanese navy produced a large number of different types of bombs, these were sub-divided into three main categories:
 * Land bombs - for use against land targets. They were normally not produced to a high standard consisting of a simple cylindrical case, riveted or welded to a cast steel nose.
 * Ordinary bombs - for use against ships. They were produced in general purpose and semi-armour piercing types. They were of higher quality and generally had a smooth machined case
 * Special bombs - for various purposes.

Rocket bombs
The Japanese produced a number of bombs with rocket motors installed, intended for air to air use against bomber formations, or as armour piercing weapons. Only two saw service, the Type 3 No.25 Mk 4 armour piercing rocket bomb, and the Type 3 No.6 Mk.27 air-to-air rocket bomb.

Incendiary bombs

 * Type 99 No.3 Mk 3
 * Type 3 No.6 Mk 3 bomb model 1
 * Type 2 No.25 Mk 3 bomb model 1
 * Type 98 No.7 Mk 6 bomb model 1
 * Type 98 No.7 Mk 6 bomb model 2
 * Type 1 No.7 Mk 6 bomb model 3 mod 1

Gas bombs

 * No. 6 Mk 1
 * Type 1 No.6 Mk.1
 * Type 4 No.6 Mk 1

Cluster type bombs

 * Type 2 No.6 Mk 21 bomb model 1
 * Type 2 No.6 Mk 21 bomb model 2


 * 1 kg hollow-charge bomb
 * 1 kg anti-personnel bomb

Practice bombs

 * 1 kg Practice bomb Mod 2
 * 1 kg Practice bomb Mod 3
 * No.3 Practice bomb Model 1
 * Type 99 No.3 Practice bomb

Flares

 * Type 96 landing flare
 * Landing flare
 * 5 kg parachute flare Model 2 mod 1
 * Type 0 parachute flare Model 1
 * Type 0 parachute flare Model 1 mod 1
 * Type 0 parachute flare Model 2
 * Type 0 parachute flare Model 3 mod 1
 * Experimental model 11 parachute flare
 * Type 94 float light
 * Experimental float light
 * Type 94 model 2 float light
 * Type 0 model 1 float light

Smoke floats and markers

 * 2 kg smoke float
 * 43 kg smoke float
 * Type 0 Model 1 sea marker
 * Type 0 Model 2 sea marker
 * Cardboard type sea marker
 * Type 3 No.6 target marker bomb
 * Type 2 2 kg target indicator

Misc

 * 2 kg Window (Chaff) bomb

Fuzes
Japanese Navy bomb fuzes designation system was unknown to the Allies until after the end of the Second World War. As a result a designation system was created to describe the fuzes as follows. It consists of a capital letter, a numeral and a lower-case parenthetical letter.

The capital letter designates the fuzes type as follows:
 * A - nose impact
 * B - tail impact
 * C - long delay fuze
 * D - airburst fuze
 * E - protective fuze

The numeral approximates the order in which the fuzes were captured by the allies. Finally the lower-case letter in parentheses indicates the different but similar designs.

Where possible the original Japanese designation is given.


 * A-1(a)
 * A-1(b)
 * A-1(c)
 * A-3(a) Type 97 Mk 2 nose fuze
 * A-3(b) Type 1 nose fuze model 2
 * A-3(c) Type 2 nose indicator
 * A-3(d) Type 97 Mk 2 nose fuze Model 1
 * A-3(e) Type 3 nose indicator
 * A-3(f) Type 2 No.50 Ordinary bomb fuze model 1
 * A-3(g)
 * A-5(a)
 * B-2(a) Type 99 No.25 Ordinary bomb fuze
 * B-2(b) Type 99 No.80 Mk 5 Bomb fuze
 * B-3(a) Type 15 tail fuze model 2
 * B-3(b) Type 15 tail fuze model 1
 * B-5(b)
 * B-5(c)
 * B-6(a) Type 97 rail initiator
 * B-9(a) tail fuze
 * B-10(a) tail fuze
 * C-1(a) Type 99 special bomb fuze
 * C-2(a) Type 99 special bomb nose fuze
 * D-2(a)
 * D-2(b)
 * D-2(c)
 * D-3(a)
 * D-4(a) parachute flare fuze
 * Type 3 electric firing device