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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: |
AN-M47A2 |
ARMY - NAVY BOMB |
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100 LB. INCEND. |
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OVERALL LENGTH |
48.9 in. |
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BODY LENGTH |
39.0 in. | ||
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BODY DIAMETER |
8.1 in. | ||
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WALL THICKNESS |
0.06 in. |
AN-M47A2 |
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TAIL LENGTH |
12.9 in. |
AN-M47A3 |
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TAIL WIDTH |
10.9 in. |
and early mods |
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TAIL WEIGHT |
(Service) |
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WEIGHTS: |
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Type of Filling |
Mustard Gas, white phosphorous, or gasoline gel incendiary IM or NP | ||
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Weight of Filling |
SEE REMARKS | ||
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Total Weight |
SEE REMARKS | ||
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Chg/Wt. Ratio |
SEE REMARKS |
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FUZING: |
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AN-M126A1, M126, M108, AN-M147 |
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BODY CONSTRUCTION: |
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Sheet steel tube with longitudinal seam weld; nose and hemispherical and base plate at rear end welded to the tube. Several bursters may be used interchangeably and run the length of the bomb. The M12 burster is a tube containing magnesium powder and black powder. M13 burster is a double walled tube containing TNT in the inner tube and white phosphorous in the outer tube. A special burster consist-ing of M13 burster with TNT in inner tube and sodium in outer tube has been deve-loped for use in ignitting oil slicks on water as well as against land targets. |
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TAIL CONSTRUCTION: |
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Four vanes welded to truncated cone with box-type interior struts. |
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SUSPENSION: |
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Horizontal suspension by two eyebolts formed by holes in each half of the two suspension bands, the halves then being crimped together to form a complete band. The bands are secured to bomb body by tightening the bolts on the underside of the body. One of the bands can be loosened and slipped to the center of gravity is single suspension is desired. |
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Two clusters are now standardized to provide single suspension for 4 to 6 bombs. The M24 (T19) cluster adapter holds six AN-M47's; and the M22 (T9) has a capacity of four AN-M47's. |
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REMARKS: |
| AN-M47A2 Incendiary: | 40 lbs. gelled gasoline, either IM or NP, with total weight of 68.6 lbs. | |
| M47A1 Incendiary: | Like AN-M47A2, with interior coating of acid-proof paint instead of oil. | |
| AN-M47A2 Smoke: | Main filling is 100 lbs. white phosphorous, with M7 bur-ster containing black powder and total weight 126.5 lbs. | |
| M47A1 Smoke: | Like AN-M47A2 Smoke, with charge of 100 lbs. WP and total weight 129.5 lbs. | |
| AN-M47A2 Gas: | 68 lbs. of H (Mustard), equipped with M4 TNT burster. Inside of body is coated with oil. Total weight, 94.5 lbs. | |
| M47A1 Gas: | Interior coated with acid-proof black paint instead of oil. | |
| M47 Chemical: | Original design with wall thickness of only 1/32 inches. | |
| Skymarker CHB Mk 1: | This marker consists of the AN-M47A1 body, the central tube having been taken out and bakelite discs placed in the nose and tail. Electric detonators break the discs and air acting on the liquid filler causes a trail of smoke as the bomb falls. |
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AN-M47A3 is identical with AN-M47A2 except that the tail assembly is 3 inches longer. |
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The Navy is procuring at the present time AN-M47A2 bombs loaded with PMP, PWP consists of 75% WP and 25% plasticizer; it is more effective than WP since it gives longer burning, reduces pillaring effect, and increases the anti-personnel ef-fect. The increased smoke efficiency is due to the larger particles of controlled size which result from the use of PWP. The bomb contains 75 lbs. of PWP and requires and M20 burster, which contains 3/4 inch diameter tetryl pellets. |
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