U.S.N.B.D. - UNITED STATES - BOMBS AND FUZES; PYROTECHNICS |
SECTION I - HIGH EXPLOSIVE BOMBS |
PART IV - U.S. ARMY-NAVY "AN" SERIES BOMBS |
DATA: |
ARMY - NAVY BOMB |
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4000 LB. L.C. |
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OVERALL LENGTH |
117.3 in. | |
BODY LENGTH |
94.9 in. | |
BODY DIAMETER |
34.0 in. | |
WALL THICKNESS |
0.37 in. |
AN-M56 |
TAIL LENGTH |
28.0 in. |
AN-M56A1 |
TAIL WIDTH |
47.6 in. |
(Service) |
TAIL WEIGHT |
95.0 lbs. | |
WEIGHTS: |
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Type of Filling |
T.N.T. | Amatol | 50/50 Amatol |
Weight of Filling |
3362 lbs. | 3245 lbs. | 3238 lbs. |
Total Weight |
4205 lbs. | 4085 lbs. | 4232 lbs. |
Chg/Wt. Ratio |
80% |
79% |
76.5% |
FUZING: |
Nose: |
AN-M103A1, AN-M103, M103, M135, M135A1, M136, M136A1,
M139; |
Tail: |
AN-M102A2, AN-M102A1, M162 (Non-delay action) |
BODY CONSTRUCTION: |
The body is made of several cast pieces welded together. The side walls have a minimum thickness of 0.3 inch and a maximum thickness of 0.5 inch. Closed at the base by a female cap, it has a rounded nose and parallel side walls. Suspension is by means of two lugs welded to the case 15 inches on either side of the center of gravity. The normal box type tail is modified on this bomb by eight additional strut rods to give increased stability for this large bomb. |
FILLING: |
The standard filling for this bomb at present is cast TNT, but some bombs in the future will be loaded with Tritonal. A full length M111 auxiliary booster is employed to insure complete detonation. |
COLOR AND MARKINGS: |
Olive drab overall with one inch yellow band around and conical section of bomb. |
REMARKS: |
The AN-M56A1 differs in that provision is made for a hoisting lug to be added at the center of gravity between the suspension lugs and also for two other suspen-sion lugs to be screwed into the bomb body, 22 1/2 degrees removed, for suspen-sion in British planes. |
The AN-M56 and AN-M56A1 are not produced by the Navy at the present time. |
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