ALLIED BOMBS AND FUZES

SIZE:

100 lb. Mark IV

TYPE:

Anti-submarine - H.E.

500 lb. Mark IV

TARGET:

Used against submarines

FUZES (Tail):

No. 32 Mark I or II

DATA

100 lb. Mark IV

250 lb. Mark IV

500 lb. Mark IV

1

OVERALL LENGTH

41.05 inches

57.65 inches

72.46 inches

2

LENGHT OF BODY

23.15 inches

34.30 inches

48.27 inches

3

DIAMETER OF BODY

8.05 inches

11.35 inches

14.30 inches

4

THICKNESS OF WALL

5

MATERIAL OF WALL

Steel

Steel

Steel

6

CONSTRUCTION OF BODY

The bodies of these bombs are identical except for dimens- ions. The body consists of: A streamlined, steel casting or forging to which a flat, cast steel nose plug is threaded; a cast of forged steel base plate is welded to the rear of the body and is threaded to take the central exploder tube.

7

TYPE OF SUSPENSION

These bombs are suspended horizontally.

8

CONSTRUCTION OF SUSPENSION LUG

The eyebolt is U-shaped and attached to the body, at the center of gravity, by four screws. A plate under the eyebolt (inside the case) reinforces the body at this point.

9

COLOR & MARKINGS ON BOMB AND TAIL

The body and tail assembly are painted yellow with a green band around greatest diameter of the body and a red band around the nose. The word "Trotyl" (T.N.T.) is stencilled in three places below the green band.

10

LENGTH OF TAIL

17.9 inches

23.4 inches

24.2 inches

11

WIDTH OF TAIL

8.0 inches

11.4 inches

14.2 inches

12

MATERIAL OF TAIL

Mild steel

Mild steel

Mild steel

13

CONSTRUCTION OF TAIL

The tail assembly consists of: A cone which fits over the base plate and is secured to it by four spring clips; four vanes rivetted to the cone; and a cylinder rivetted to the vanes.

14

WEIGHT OF TAIL

7.5 lbs.

10.0 lbs.

15

TYPE OF FILLING

The filling of these bombs is Trotyl (T.N.T.)

16

WEIGHT OF FILLING

44.0 lbs.

132.0 lbs.

279.0 lbs.

17

TOTAL WEIGHT OF BOMB

85.0 lbs

225.0 lbs.

485.0 lbs.

18

CHARGE/WEIGHT RATIO

46.0%

55.0%

58.0%