Fuzes: B-6 (a).

Over-all length: 33 3/8 inches.

Length of body: 16 15/16 inches.

Diameter of body: 7 inches.

Thickness of wall: 1/4 inch.

Material of wall: Steel.

Type of suspension: Horizontal.

Suspension lug: 2 normal Navy suspension lugs 180° apart.

Color and markings: The body forward of the suspension lugs is black. Aft of lugs, the bomb is white. Two red lines 90° on either side of the suspension lugs run the length of the body and tail cone. New color markings will be found.

Length of tail: 17 1/4 inches.

Width of tail: 9 1/2 inches.

Width of tail fins: 4 inches; thickness, 1/16 inch.

Dimensions of tail struts: Length, 6 7/8 inches; width, 1 3/16 inches; thickness, 1/16 inch.

Material of tail: Steel.

Type of filling: Concrete in nose and body. Titanium tetrachloride and picric burster char-ge in tail cone.

Total weight of bomb: 68 pounds.

Construction of body: The nose and body are constructed of one piece of machined steel. The sheet steel tail cone is attached to the after end of the body by screws. The nose and body are concrete filled. A wooden block fills the lower part of the tail cone and a conical steel tank containing a spotting charge of titanium tetrachloride and a pi-cric burster fits into the apex of the cone. Four slots in the tail cone allow the smoke to escape when the burster charge ruptures the metal container.

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

Figure 72 - No. 3 Practice Bomb Model 1.