2000 lb. T9500 lb. AN-M58A2 & 1000 lb. AN-M59A1, AN-M59
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

 

 

4000 LB. L.C.

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:

 

     

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;
AN-M139A1, M140, AN-M140A1, M149, M163, M164, M165, Mk239,
AN-Mk219 (set for instantaneous action always)

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.

2000 lb. T9500 lb. AN-M58A2 & 1000 lb. AN-M59A1, AN-M59