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Japanese Explosive Ordnance – Bombs, Bomb Fuzes, Land Mines,
Grenades, Firing Devices and Sabotage Devices |
Chapter 1 – Section 2 |
Japanese Navy Bombs |
Type 2 2-kg. Target Indicator |
Fuzes: None. |
Over-all length: 17 inches. |
Length of body: 11 3/16 inches. |
Diameter of body: 3 inches. |
Thickness of wall: 3/16 inches. |
Material of wall: Bakelite. |
Type of suspension: Horizontal. |
Suspension lug: A steel suspension ring is attached to a steel band by a soldered tin strip. The steel band fits tightly around the bomb body. |
Color and markings: Black body and tail. No other color or markings present. |
Length of tail: 4 7/8 inches. |
Width of tail: 5 inches. |
Width of tail fins: 1 9/16 inches. |
Dimensions of tail struts: Length 3 1/8 inches; width 7/16 inch. |
Material of tail: Sheet tin. |
Type of filling: F.M. (titanium tetrachloride). |
Weight of filling: 1 pound 7 3/4 ounces. |
Total weight of bomb: 3 pounds 14 ounces. |
Charge/weight ratio: 37 percent. |
Construction of body: The bomb body is of molded bakelite construction with an open-ing in the after end only. This opening is threaded to receive a bakelite stopper, the union being sealed by a black rubber washer. The stopper is threaded internally to recei-ve a bakelite tube which extends nearly the complete length of the bomb body. The after end of the stopper is a slightly tapered tube and a rubber tube is cemented over it. Cemented into the after end of the rubber tube is a glass tube through which the bomb is filled. When the bomb is approximately two-thirds filled with liquid F.M. the glass tube is heated and sealed off. A small wire is attached to the glass tube at the point of seal-ing. Each of the cemented unions is reinforced with a wire wrapping. |
A ballistic cap is glued to the nose of the bomb. The cap is made of heavy paper and is filled with fine iron fillings to make the bomb nose heavy. |
Construction of tail: The tail fins are made of sheet tin. Pairs of adjacent fins are stam-ped from the same piece of metail and soldered to the forward end after circular struts. The edges of the fins are strengthened by having a one-eigth (1/8) inch turn-back. The after circular strut (width, 1 inch; diameter, 1 7/8 inches) is similarly strengthened. The forward circular strut (with, 9/16 inch; diameter 1 1/16 inches) is of lighter gage tin and is secured to the fins by soldering except for on free end which is secured by a bolt and nut after the fins are as-sembled to the bomb. To insure positive seating of the fins, a rubber insert ex-tends half way around the inside of the forward circular strut. A single set of box-type struts (length, 3 1/8 inches; width, 7/16 inch) is located at the after ex-tremities of the fins. |
Operation: The bomb is released from the plane and the case fractures on contact with the target. The smoke mixture is dispersed. |
Figure 86 - Type 2 2-kg. Target Indicator. |
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