Japanese Explosive Ordnance – Bombs, Bomb Fuzes, Land Mines,
Grenades, Firing Devices and Sabotage Devices |
Chapter 1 – Section 1 |
Japanese Army Bombs |
Container for 76 Type 2 1/3-kg. Bombs |
Fuzes: None. |
Over-all length: 41 1/2 inches. |
Length of body: 41 1/2 inches. |
Diameter of body: 8 inches. |
Thickness of wall: 1/16 inch. |
Material of wall: Corrugated sheet steel. |
Type of suspension: Horizontal. |
Suspension lug: Normal Army type suspension lug. |
Color and markings: Black over-all. |
Length of tail: None. |
Witdh of tail: None. |
Width of tail fins: None. |
Dimensions of tail struts: None. |
Material of tail: None. |
Type of filling: 76 type 2 40-mm 1/3-kg. bombs. |
Weight of filling: 56 pounds (approximate). |
Total weight of bomb: 77 pounds. |
Charge/weight ratio: 72 percent. |
Construction of body: The container is formed be three interlocking lengths of corruga-ted sheet steel, closed at each end by hexagonal sheet steel plates. The three inter-locking lengths are held in position by four encircling sheet steel bands and buckles. The buckles are prevented from opening by two arming wires. To a hub on the exterior of the after end plate are attached three bungee cords 7 1/2 inches long, to each of which is attached a steel hook. Each hook fits into a hole in the side of each section of the con-tainer. |
One of the three interlocking corrugated lengths serves as the upper portion of the hori-zontally suspended container. To this upper portion is spot welded a smooth semicircular sheet steel piece 31 1/2 inches long, in the center of which is located the suspension lug. On each side of the lug, between it and the in-board steel bands, there is welded an eyebolt to take the arming wires. |
Operation: When the container is released from the plane, the arming wire is withdrawn. The buckles open and the steel bands fall away. The three sections of the body sepa-rate, allowing the bombs to fall free. |
Remarks: Fitted around the container there may be a safety device consisting of a can-vas strap, a black powder burster charge in a small container, and a friction igniter with a 2-second delay. The igniter cord is attached to the arming wire and as the container leaves the plane the delay train is ignited. After 2 seconds, the strap is blown apart and the section of the container fall free. |
Figure 29 - Container for 76 Type 2 1/3-kg. Bombs. |
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