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ALLIED BOMBS AND FUZES |
| BRITISH BOMBS - SECTION 2 |
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Bomb Data |
File No.: 1284.1 |
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Nationality: British |
Information Data: October 1942 |
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SIZE: |
100 lb. Mark I & II |
TYPE: |
Anti-submarine - H.E. |
| 250 lb. Mark I & II | |||
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500 lb. Mark I & II |
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TARGET: |
Used against submarines or other underwater tar-gest |
FUZES (Tail only): |
No. 32 Mark I |
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DATA |
100 lb. |
250 lb. |
500 lb. |
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Mk. I |
Mk. III |
Mk. I |
Mk. III |
Mk. I |
Mk. III |
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1 |
OVERALL LENGTH |
42.2" |
43.0" |
58.4" |
59.5" |
74.5" |
76.5" |
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2 |
LENGTH OF BODY |
30.0" |
43.1" |
53.5" |
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3 |
DIAMETER OF BODY |
8.1" |
8.2" |
11.1" |
11.2" |
14.1" |
14.3" |
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4 |
THICKNESS OF WALL |
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5 |
MATERIAL OF WALL |
All of these bomb cases are made of steel. |
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6 |
CONSTRUCTION OF BODY |
The construction of these bombs is very similar and the body consists of the following: A forged or cast steel nose section threaded to take the nose adapter and welded to thin, mild steel plate body to which is welded a cast steel base plate. The entire body is streamlined. The thin portion of the body, in the Mk. I bombs, has three interior streng-thening rings, one of which is around the center of gravity. |
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7 |
TYPE OF SUSPENSION |
These bombs are suspended horizontally. |
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8 |
CONSTRUCTION OF SUSPENSION LUG |
Both the Mk. I and Mk. III bombs have a U-shaped eyebolt secured to the case at the center of gravity (over one of the strengthening rings) by cap screws. |
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9 |
COLOR & MARKINGS ON BOMB AND TAIL |
The body and tail of this bomb are painted yellow, the body having a green band around the largest diameter and a red band around the nose. If the filling used is Trotyl (T.N.T.) this (Trotyl) will appears stencilled on the body below the green band in three places. If the filling is Baratol 10/90, the symbols "Bar 10/90" will replace the above. |
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10 |
LENGTH OF TAIL |
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11 |
WIDTH OF TAIL |
8.1" |
8.2" |
11.0" |
11.2" |
14.0" |
14.3" |
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12 |
MATERIAL OF TAIL |
The tail assembly is made of mild steel. |
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13 |
CONSTRUCTION OF TAIL |
The tail consists of: Cast iron truncated cone secured to the base plate by a bolt; four vanes are welded or rivetted to the cone and a cylinder is rivetted to the vanes. |
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14 |
WEIGHT OF TAIL |
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15 |
TYPE OF FILLING |
Two types of filling may be used: 1) T.N.T.; or 2) Baratol 10/90 (a mechanical mixture of T.N.T. and Barium Nitrate). |
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16 |
WEIGHT OF FILLING |
1) 50.0 lbs. |
1) 126.0 lbs. |
1) 256.0 lbs. |
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17 |
TOTAL WEIGHT OF BOMB |
1) 91.0 lbs. |
1) 237.0 lbs. |
1) 475.0 lbs. |
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18 |
CHARGE/WEIGHT RATIO |
55.0% |
54.0% |
54.0% |
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