FRAGMENTATION BOMBS

The above fragmentation bombs are provided with a nose firing mechanism so arranged as to cause the bomb to explode above the ground, and cause a lateral. dispersement of the fragments over an area of 40 yards or more in diameter. All the above bombs are intended for horizontal release. The Mark Il and II-A are also provided with a loop at the tail by means of which they may be carried in the British release for the Cooper Bomb.



MARK II-B FRAGMENTATION BOMB

The Mark II-B fragmentation bomb is a copy of the English Cooper bomb.



BARLOW HEAVY DROP BOMB, MODEL 1917

This bomb consists of a war head or shell of forged steel containing 13 pounds (6 kg.) of high explosive. To this war head is connected a compressed air mechanism of pressed steel and brass tubing, which is composed of a forward extrusion rod carrying the firing mechanism and a sliding stabilizer mounting which moves to the rear. On release from the plane the compressed air in the air chamber is released and drives the stabilizer tube back and the firing mechanism forward until the latter extends about 6 feet (2 meters) in front of the war head. On contact a service cartridge carried in the front end of the extruded tube is discharged; the bullet passes up the tube and strikes a primer in the detonator which explodes the war head when it is between 4 and 5 feet above the ground. The bomb is to be used against personnel in the field or on the march or wherever the protection afforded is slight.



INCENDIARY BOMBS

The incendiary drop bomb Mark I is of the "scatter" type and is for use against grain fields, light wooden structures, and wherever better results can be obtained by scattering the incendiary material over a larger area. It carries a charge of 1 1/3 pounds of black powder and 19 pounds of cotton waste balls soaked in turpentine, or solid oil balls wrapped in burlap. Two firing mechanisms are provided, one in the nose and one in the tail. . This bomb is carried in the horizontal release mechanism.

The incendiary drop bomb Mark II is of the "intensive" type, and is designed for use against structures which require a higher degree of igniting power. This bomb has a of 10 pounds of thermit and 16 pounds of oil emulsion. The tail firing mechanism is the same as in the Mark I incendiary. An auxiliary nose loop is provided
for use in the vertical release and the bomb may also be carried in the horizontal release.

The incendiary drop bomb Mark III at present under development is very similar to the Mark II incendiary. The dimensions of this bomb will be the same as of the. Mark I high capacity bomb.



DUMMY DROP BOMBS

This bomb, which is designed for instructional purposes, is made with a central tube covered with concrete, or terra
cotta in the same size and shape. as the Mark II high capacity bomb. In the central tube is placed a small type, of point
detonating mechanism; a smoke producing cartridge is thus set off which aids in locating the bomb aflter it has been
dropped.



MARKING OF BOMBS

The type of bomb is stamped on a brass name plate on the Barlow bomb and stenciled in black on the other types.

High-capacity drop bombs, Mark I, II, -1II, IV, V, and VI:
Color, olive drab; center of gravity marked by 1-inch black band.

Barlow heavy drop bomb:
Color, olive drab; center of gravity marked by 1-inch black band.

Fragmentation bombs, Mark 11 and III:
Color, olive drab; one 1-inch blue band 3 inches from tip. '

Incendiary drop bomb, Mark I:
Color, olive drab; one 1-inch red band 3 inches from tip.

Incendiary drop bomb, Mark II:
Color,'olive drab; two 1-inch red bands 3 inches from tip, 2 inches apart.

Dummy drop bomb, Mark 1:
Color, black.



PACKING OF BOMBS

High-capacity drop bombs:

Mark 1, in a case ----------------- 1
Mark 11, in a casee -------------- 3
Mark 111, in a casee ------------ 2
Mark IV, V, VI, in a case ------ 1

The detonator, in a sealed tin container, is carried in the compartment provided for it in the shipping case With the bomb. The cover of the detonator compartment is painted red when the detonator is loaded and left unpainted when it is not loaded.

Barlow heavy drop bomb:
Packed 1 in a case.
The detonator, in a sealed tin container, is carried in a separate compartment.

Fragmentation bombs:

Incendiary Drop bombs:
Mark 1, in a case -------- 2
Mark 1I, in a case ------- 2

The powder charge for each Mark I bomb is put in a tin powder can and fastened in the shipping case with the bomb.

This can is 15 1/8 inches long and 1 13/16 inches in diameter and is carried in the forward of the shipping case under the nose of the bomb.
The nose firing mechanism for the Mark I bomb is carried in a compartment directly over the powder can.
Two powder charges and two firing mechanisms are carried in each shipping case, one for each bomb.
The outside of each case is marked with a stencil denoting the kind of bomb contained therein.

Dummy drop bomb Mark 1:
Packed 3 in a case.


STORAGE OF BOMBS

Bombs should be stored in a structure which is bombproof and kept as cool and dry as possible to prevent the deterioration of the explosive charge.