American Projectiles and Explosives
Explosive Bombs
"AN" Series
100-pound Incendiary AN-M47 Series
AN-M47A2
Overall length: 48.9 inches
Body length: 39 inches
Construction: The bomb body is a sheet-steel tube with a longitudinal seam weld. The nose end is hemispherical. A base plate at the rear end is welded to the tube. Several bursters may be used interchangeably. The burster runs the length of the bomb. The Burster AN-M12 is a tube containing a 50-50 mixture of black powder and magnesium. The Burster AN-M13 is a tube containing TNT and tetryl pellets at each end, and is used in conjunction with the Igniter AN-M9 (WP or Na). The Na igniter will permit use over water. Four vanes are welded to a truncated cone with box-type interior struts to form the tail.
Suspension: Horizontal suspension is provided 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 the 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 if single suspension is required.
Two clusters are now standardized to provide a single suspension for four to six bombs. The Cluster Adapter M24 holds six AN-M47's ; and the M22 has a capacity of four AN-M47's.
M47A2 - Gas: Loaded with 68.5 pounds of mustard gas. Complete round weighs 98 pounds. Inside of body is coated with oil. Equipped with Burster M4.
M47A1 - Gas: Differs from the M47A2 only in that the interior is coated with black acid-proof paint instead of oil.
M47A - Chemical: Original design, has wall thickness of only 1/32 inch. Not use for H filling.
M47A2 - Smoke: Main filling is 100 pounds of white phosphorus, and total weight is 127 pounds. Burster M4 is authorized for high-altitude bombing; Burster M18 is authorized for low-altitude bombing. Burster M7 may be substituted for either.
M47A1 - Smoke: Like M47A2 - Smoke, with charge of 103 pounds WP and total weight of 129.5 pounds, and interior coated with black acid-proof paint.
AN-M47A2 - Incendiary: Loaded with 40-pound charge of gelled gasoline, either IM or NP, with total weight of 68.6 pounds. Burster AN-M13 and Igniter AN-M9 (WP or Na) authorized for this bomb.
M47A1 - Incendiary: Like AN-M47A2, with interior coating of acid-proof paint instead of oil.
AN-M47A3 - Incendiary: Identical to AN-M47A2, except that tail assembly is three inches longer.
AN-M47A4 - Incendiary: On this modification, the suspension lugs are strengthened.
The Navy is procuring, at the present time [Manual Date 1949], Incendiary Bombs M47A2 loaded with PWP. 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 effect. The increased smoke efficiency is due to the larger particles of controlled size which result from the use of PWP. The bomb contains 75 pounds of PWP and requires a Burster M20, which contains 3/4-inch-diameter tetryl pellets.
500-pound Incendiary AN-M76
Overall length: 59.2 inches
Body length: 45.3 inches
Construction: The body is of one-piece cast-steel construction, with a base plate welded to the body. A burster tube 3.5 inches in diameter, 35.75 inches long, running through the center of the bomb, is welded to the nose and to the base plate. The Adapter Booster M115 screws into the base plate. The bomb tail is a cast-steel sleeve with four sheet-steel fins and internal box-type struts. Suspension is accomplished by two suspension lugs welded on the body seven inches on each side of the center of gravity and by a single lug, 180 degrees removed at the center of gravity.
Operation: On impact, the fuzes function and detonate the 1.25-pound tetrytol burster in the burster tube and initiate the nine-pound white phosphorus igniter, which, in turn, ignites the main filling.
The bomb has a dispersal area of about 300 by 600 feet.
Remarks: White phosphorus is present in the igniter, and proper precautions should be taken in disposing of these bombs. The incendiary mixture, PT 1, consisting essentially of paste of magnesium, gasoline, and a thickener, liberates heat at about four times that given off by the usual incendiary mixture IM.
Remarks: The Adapter Booster M117 is used in conjunction with the Nose Fuze M127. This nose fuze is required for aerial bursts with persistent gas agents.
100-pound Incendiary AN-M47 Series
AN-M47A2
Overall length: 48.9 inches
Body length: 39 inches
Body diameter: 8.1 inches
Wall thickness: 0.06 inches
Tail length: 12.9 inches
Tail width: 10.9 inches
Filling: Mustard Gas, White Phosphorus, or Gasoline Gel
Wall thickness: 0.06 inches
Tail length: 12.9 inches
Tail width: 10.9 inches
Filling: Mustard Gas, White Phosphorus, or Gasoline Gel
Construction: The bomb body is a sheet-steel tube with a longitudinal seam weld. The nose end is hemispherical. A base plate at the rear end is welded to the tube. Several bursters may be used interchangeably. The burster runs the length of the bomb. The Burster AN-M12 is a tube containing a 50-50 mixture of black powder and magnesium. The Burster AN-M13 is a tube containing TNT and tetryl pellets at each end, and is used in conjunction with the Igniter AN-M9 (WP or Na). The Na igniter will permit use over water. Four vanes are welded to a truncated cone with box-type interior struts to form the tail.
Suspension: Horizontal suspension is provided 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 the 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 if single suspension is required.
Two clusters are now standardized to provide a single suspension for four to six bombs. The Cluster Adapter M24 holds six AN-M47's ; and the M22 has a capacity of four AN-M47's.
M47A2 - Gas: Loaded with 68.5 pounds of mustard gas. Complete round weighs 98 pounds. Inside of body is coated with oil. Equipped with Burster M4.
M47A1 - Gas: Differs from the M47A2 only in that the interior is coated with black acid-proof paint instead of oil.
M47A - Chemical: Original design, has wall thickness of only 1/32 inch. Not use for H filling.
M47A2 - Smoke: Main filling is 100 pounds of white phosphorus, and total weight is 127 pounds. Burster M4 is authorized for high-altitude bombing; Burster M18 is authorized for low-altitude bombing. Burster M7 may be substituted for either.
M47A1 - Smoke: Like M47A2 - Smoke, with charge of 103 pounds WP and total weight of 129.5 pounds, and interior coated with black acid-proof paint.
AN-M47A2 - Incendiary: Loaded with 40-pound charge of gelled gasoline, either IM or NP, with total weight of 68.6 pounds. Burster AN-M13 and Igniter AN-M9 (WP or Na) authorized for this bomb.
M47A1 - Incendiary: Like AN-M47A2, with interior coating of acid-proof paint instead of oil.
AN-M47A3 - Incendiary: Identical to AN-M47A2, except that tail assembly is three inches longer.
AN-M47A4 - Incendiary: On this modification, the suspension lugs are strengthened.
The Navy is procuring, at the present time [Manual Date 1949], Incendiary Bombs M47A2 loaded with PWP. 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 effect. The increased smoke efficiency is due to the larger particles of controlled size which result from the use of PWP. The bomb contains 75 pounds of PWP and requires a Burster M20, which contains 3/4-inch-diameter tetryl pellets.
500-pound Incendiary AN-M76
Body length: 45.3 inches
Body diameter: 14 inches
Wall thickness: 0.3 inches
Tail length: 13.9 inches
Tail width: 14.8 inches
Filling: Oil Gel PT 1
Weight of filling: 180 pounds
Total weight: 475 pounds
Wall thickness: 0.3 inches
Tail length: 13.9 inches
Tail width: 14.8 inches
Filling: Oil Gel PT 1
Weight of filling: 180 pounds
Total weight: 475 pounds
Charge/weight ratio: 38%
Construction: The body is of one-piece cast-steel construction, with a base plate welded to the body. A burster tube 3.5 inches in diameter, 35.75 inches long, running through the center of the bomb, is welded to the nose and to the base plate. The Adapter Booster M115 screws into the base plate. The bomb tail is a cast-steel sleeve with four sheet-steel fins and internal box-type struts. Suspension is accomplished by two suspension lugs welded on the body seven inches on each side of the center of gravity and by a single lug, 180 degrees removed at the center of gravity.
Operation: On impact, the fuzes function and detonate the 1.25-pound tetrytol burster in the burster tube and initiate the nine-pound white phosphorus igniter, which, in turn, ignites the main filling.
The bomb has a dispersal area of about 300 by 600 feet.
Remarks: White phosphorus is present in the igniter, and proper precautions should be taken in disposing of these bombs. The incendiary mixture, PT 1, consisting essentially of paste of magnesium, gasoline, and a thickener, liberates heat at about four times that given off by the usual incendiary mixture IM.
500-pound Chemical AN-M78
Wall thickness: 0.3 inches
Tail length: 13.9 inches
Tail width: 18.9 inches
Tail weight: 12.3 pounds
Filling: Hydrocyanic Acid (AC)
Weight of filling: 100 pounds
Total weight: 383 pounds
Overall length: 59.25 inches
Body length: 46.7 inches
Body diameter: 14 inchesBody length: 46.7 inches
Wall thickness: 0.3 inches
Tail length: 13.9 inches
Tail width: 18.9 inches
Tail weight: 12.3 pounds
Filling: Hydrocyanic Acid (AC)
Weight of filling: 100 pounds
Total weight: 383 pounds
Charge/weight ratio: 26.1%
or
or
Filling: Phosgene (CG)
Weight of filling: 205 pounds
Total weight: 488 pounds
Weight of filling: 205 pounds
Total weight: 488 pounds
Charge/weight ratio: 42%
or
or
Filling: Cyanogen Chloride (CK)
Weight of filling: 165 pounds
Total weight: 448 pounds
Weight of filling: 165 pounds
Total weight: 448 pounds
Charge/weight ratio: 36.8%
Construction: In construction, the Chemical Bomb AN-M78 resembles the 500-pound G.P. Bomb AN-M64. The body is of one-piece cast-steel construction with a Burster M15 well running the entire length of the bomb. The burster is threaded internally at the nose to receive the nose fuze and at the rear to receive the Adapter Booster M115. The base plug consists of a special forging welded to the case, containing the Needle Valve M1. The tail is a standard box-type fin assembly secured to the bomb by a locking nut which threads onto the base plug. Suspension is by two lugs seven inches on either side of the center of gravity, or by a single suspension lug 180 degrees removed at the center of gravity.
Remarks: The Adapter Booster M117 is used in conjunction with the Nose Fuze M127. This nose fuze is required for aerial bursts with persistent gas agents.