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| U.S.N.B.D. - UNITED STATES - BOMBS AND FUZES; PYROTECHNICS |
| SECTION II - INCENDIARY & CHEMICAL BOMBS |
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DATA: |
ARMY - NAVY BOMB |
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2 LB. INCEND. |
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OVERALL LENGTH |
14.22 in. | ||
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BODY LENGTH |
9.13 in. | ||
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BODY DIAMETER |
1.68 in. | ||
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WALL THICKNESS |
0.35 in. |
AN.M52 |
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TAIL LENGTH |
5.79 in. |
AN-M52A1 |
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TAIL WIDTH |
1.68 in. |
AN-M52XA1 |
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TAIL WEIGHT |
(Obsolete) |
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WEIGHTS: |
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Type of Filling |
Thermate | ||
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Weight of Filling |
0.4 lbs. | ||
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Total Weight |
2.0 lbs. | ||
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Chg/Wt. Ratio |
20% |
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BODY CONSTRUCTION: |
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Hexagonal cast magnesium alloy body weighing 1.13 lbs, with bore on inch shor-ter than the body length, thus making a solid nose. There are three vent holes be-low the primer cap assembly to assist in initial burning. |
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TAIL CONSTRUCTION: |
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Hexagonal sheet metal tail, secured to body with three screws. |
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SUSPENSION: |
| Cluster | Cluster Adapter | Size | No. of Bombs Carried | Status | |
| M10 | M5 | 100 lb. |
42 AN-M52A1 |
Obsolete | |
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9 AN-M52XA1 |
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| M11 | M8 | 500 lb. | 153 AN-M52A1 | Obsolete | |
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39 AN-M52XA1 |
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FILLING: |
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Thermate is a composition of 80% Thermite and 20% First Fire Charge: |
| Thermite | First Fire Charge | ||
| Iron Oxide 76% | Sodium Nitrate 30% | ||
| Aluminium Powder 24% | Aluminium Powder 45% | 75% | |
| Sulphur 4% | |||
| Boiled Linseed Oil 1% | |||
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Black Powder |
25% |
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ACTION: |
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Spring loaded safety plunger is depressed by adjacent bomb; upon release from cluster it jumps out, leaving a thin brass cross holding striker. On impact, striker breaks free from cross, igniting primer, firing fire charge and thermate. The ther-mate burns, igniting the magnesium alloy case. Total burning time is 8 minutes. |
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REMARKS: |
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In the AN-M52A1 a primer of heavier metal is used and the composition of the first fire charge is altered. The AN-M52XA1 incorporates an explosive charge, other-wise duplicates the AN-M52A1. |
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For COLOR & MARKINGS see |
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INTRODUCTION, Page 100 |
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