Fuzes: A-2 (a), A-2 (d); B-1 (a).

Over-all length: 32 inches.

Length of body: 20 inches.

Diameter of body: 5 1/8 inches.

Thickness of wall: 1/16 inch.

Material of wall: Sheet steel.

Type of suspension: Horizontal.

Suspension lug: A typical hinged Army suspension lug is attached to a steel band which is fits around the bomb.

Color and markings: Black over all with a red-tipped nose. Size and type of bomb are stenciled forward of the suspension lug. Place and date of manufacture are stenciled aft.

Length of tail: 11 11/16 inches.

Width of tail: 7 inches.

Width of tail fins: 2 inches.

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

Material of tail: Sheet steel.

Type of filling: Main filling is steel pellets set in concrete. Central tube contains black powder and high explosive.

Weight of filling: Explosive filling, 2.8 lb.

Total weight of bomb: 63 lb.

Construction of body: The body is constructed of a light sheet steel cylinder which surrounds a steel central tube. The space between the tube and outer casing is filled with steel pellets set in concrete.

The nose section is welded to the barrel. A steel adapter ring is welded to the end of this section. The adapter ring is internally threaded to receive another ring which con-tains the nose fuze pocket.

The central exploder tube contains two tinned steel canisters. The forward container is filled with black powder. The larger after container is filled with a high explosive.

The tail cone is welded to the barrel and has a fuze pocket at its apex.

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

Remarks: The bomb body and tail cone may be pierced by 4 rows of holes 90° apart. Each row contains 11 holes which are 1/64 inch in diameter. It is assumed that the pur-pose of the holes is to release the moisture and air in the newly cast concrete filling.

Figure 23 - Type 1 30-kg. Substitute Bomb.