Fuzes: A-8 (b); B-8 (a).

Over-all length: 78 inches.

Length of body: 46 1/2 inches.

Diameter of body: 11 3/4 inches.

Thickness of wall: 1/2 inches.

Material of wall: Tubular steel.

Type of suspension: Horizontal.

Suspension lug: Normal Army type suspension lug.

Color and markings: Black over all with a red-tipped nose and a yellow band forward of the suspension lug.

Length of tail: 31 1/2 inches.

Width of tail: 16 1/2 inches.

Width of tail fins: 8 1/4 inches.

Dimensions of tail struts: Length, 11 1/2 inches; width, 3/4 inch; thickness, 3/32 inch.

Material of tail: Steel.

Type of filling: Paper wrapped cast picric blocks sealed with TNT.

Weight of filling: 230 pounds.

Total weight of bomb: 550 pounds.

Charge/weight ratio: 41 percent.

Construction of body: A steel nosepiece is welded to a tubular-steel barrel. The after end of the barrel is threaded internally to receive the tail assembly. A row of 12 hexago-nal bolts around the circumference of bomb 3 1/2 inches forward of the after end of the barrel hold a steel reinforcing section in place. This cylindrical section closed at one end by a perforated plate is strengthened by three strips of metal which divide it into six equal compartments. Twelve holes are drilled in the outer circumference of the section to accommodate the bolts. TNT is cast in the section to a point flush with its after ed-ges. The tail cone is welded to a collar which screws into the after end of the barrel.

Construction of tail: Four tail fins are spot welded to the tail cone. They are braced by a single set of box-type struts. The tail fins are further strengthened by four steel plates welded to the outer edges and running the entire length from the after end to a point just forward of the curved portion of the fins. A square hole is cut in each to permit ac-cess to the tail fuze pocket.

Figure 9 - Type 3 250-kg. Skipping Model Bomb.