Fuzes: A-2 (a), A-2 (c); B-1 (a), B-1 (b); D-5 (a).

Over-all length: 33 1/4 inches.

Length of body: 19 3/4 inches.

Diameter of body: 5 7/8 inches.

Thickness of wall: 9/32 inches.

Material of wall: Tubular steel.

Type of suspension: Horizontal.

Suspension lug: Normal Army suspension lug.

Color and marking: Black over all with a red band around the nose and a yellow band and white band around the body forward of the suspension lug.

Length of tail: 13 1/2 inches.

Width of tail: 8 1/4 inches.

Width of tail fins: 3 1/4 inches.

Dimension of tail struts: Length, 5 3/4 inches; width, 1 inch; thickness, 1/16 inch.

Material of tail: Sheet steel.

Type of filling: Cyclonite, 48 percent; TNT, 52 percent in 3 performed blocks.

Weight of filling: 25 pounds, 12 ounces.

Total weight of bomb: 66 pounds.

Charge/weight ratio: 39 percent.

Construction of body: A cast-steel nosepiece is screwed into a tubular steel body. A tail cone is welded to the after end of the steel body.

Construction of tail: Four tail fins are spot welded to the cone, and are braced by a single set of box-type struts.

Remarks: This bomb has been found with sheet steel plates welded to the outer edges of the fins to form a box-like reinforcement for the tail fins. They cover the area from the after end of the fins to a point just forward of the curve in the fins. This is a antishipping adaption using the A-8 (a) and B-8 (a) fuzes. Documents report that an antipenetration device is used on the tail of the type 99 30-kg. bomb for minimum altitude bombing.

Figure 3 - Type 99 30-kg. High-Explosive Bomb.