250 lb. D.C. Bomb Mk XI, XI*Incendiary Bombs
U.S.N.B.D. - BRITISH BOMBS AND FUZES; PYROTECHNICS; DETONATORS
AIRCRAFT DEPTH CHARGES

 

 

 

 

 

BRITISH BOMB

FUZING

Tail Pistol Mk XIV, XIV*

250 LB. D.C.

 

XVI, XVI*, or Mk X**

COLOR & MARKINGS

Dark green overall; ½" red

 

band near nose, 2" light

 

green cross-hatched band

AIRCRAFT DEPTH CHARGE

 

near suspension lug.

 

TAIL NO.

 

Mk VIII

OVERALL LENGTH

56"

 

BODY LENGTH

38.15"

(Obsolescent)

MAX. BODY DIAMETER

11"

 

WALL THICKNESS

   

TAIL LENGTH

18"  

TAIL WIDTH

11"  

TOTAL WEIGHT

250 lbs.  

CHARGE/WEIGHT RATIO

64%

 

BODY CONSTRUCTION:

Welded cylindrical outer case with convex nose welded on, some-times fitted with concave nose attachment. Rear end of body closed by an end cover dished inwards, housing two filling holes, provided with brungs. On the cover are six equispaced lugs for attaching the tail. A primer tube fits into the rear cover, extending approximately half the length of the body. It has 3.5" internal diameter, and contains the primer and pistol and depth adjuster.

TAIL CONSTRUCTION:

Open-ended cylindrical sheet metal tail supported internally by a spiral wire stiffener. Strengthening band on forward and carries six brackets which are attached by studs and nuts to the six lugs on the closing cover on the depth charge. Three equally spa-ced ports are provided in the tail, through one of which is passed the fuze-setting con-trol link when the depth charge is loaded on the aircraft. Tail breaks off on impact with water.

SUSPENSION:

Horizontal suspension by a lug welded to the body at the center of gravity. May be fitted with two additional lugs for suspension from U.S. aircraft bomb racks.

EXPLOSIVE COMPONENTS:

Detonators:

Mk VIII, A.S.A. mixture and C.E.

Primer:

Mk VIII, 1 solid and 1 perforated pellet of C.E.

Filling:

160 lbs. Amatol.

REMARKS:

This depth charge is dropped from a maximum height of 500' and at a maximum speed of 175 m.p.h.

250 lb. D.C. Bomb Mk XI, XI*Incendiary Bombs