Cluster Adapter M15, M1623 lb. AN-M40
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 BOMBS

 

 

 

20 LB. FRAG.

OVERALL LENGTH

19.5 in.  

BODY LENGTH

11.3 in.  

BODY DIAMETER

3.6 in.  

WALL THICKNESS

0.56 in.  

AN-M41 (20 lb.) and A1 Mod

TAIL LENGHT

9.25 in.  

M48 (20 lb.) Practice

TAIL WIDTH

5.1 in.    

TAIL WEIGHT

1.6 lbs.    
       
       

WEIGHTS:

 

 

     

Type of Filling

T.N.T.    

Weight of Filling

2.7 lbs.    

Total Weight

20.3 lbs.    

Chg/Wt. Ratio

13%

 

 

FUZING:

AN-M110A1, M110; M109; AN-M120; AN-M120A1; M158

BODY CONSTRUCTION:

Bomb is constructed of the followings: (1) cast steel nose and tail pieces; (2) seamless steel inner tube; (3) helically-wrapped drawn steel wire wrapping around inner tube. The tube is threaded to hold the nose and tail sections.

SUSPENSIONS:

For individual suspension of this bomb, a U-shaped eyebolt of steel is welded to the body at the center of gravity for horizontal suspension, and an eyebolt is wel-ded to the tail for vertical suspension.

Bomb may be dropped in a cluster of 6 bombs in the AN-M12A2 or M1 cluster adapter forming the AN-M1A1 or M1 cluster. The cluster adapter is made of sheet steel, and does not use eyebolts of bombs for suspension.

TAIL CONSTRUCTIONS:

Four rectangular sheet steel vanes welded to a length of 1" cast iron pipe which screws into the base filling plug.

COLOR AND MARKINGS:

Olive drab with 1" yellow band around the nose and extreme rear of the bomb and a 1/2" band around the center of gravity. Present production eliminates the 1/2" yellow band.

REMARKS:

Bomb is a high-level fragmentation bomb and should be dropped from a minimum altitude of 400 feet.

The A1 modification of this bomb consists of adding a 1 1/2" shoulder around the nose to facilitate clustering with unfuzed bombs. Heretofore the spacers of the cluster adapter have fitted against the fuze, thereby making it requisite that the bombs be clustered and shipped with fuzes inserted.

The M48 is a practice bomb, simulating the AN-M41A1.

Cluster Adapter M15, M1623 lb. AN-M40