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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 |
| No. 25 Ordinary Bomb Model 2 |
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Over-all length: 71 1/2 inches. |
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Length of body: 44 1/2 inches. |
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Diameter of body: 14 inches. |
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Thickness of wall: 5/8 inch. |
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Material of wall: Steel. |
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Type of suspension: Horizontal. |
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Suspension lug: Normal Navy suspension lug. |
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Color and markings: Gray over all with a green band on the nose and green tail struts. New type color markings will be found. |
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Length of tail: 27 inches. |
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Width of tail: 14 inches. |
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Width of tail fins: 4 3/32 inches. |
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Dimensions of tail struts: Length, 10 inches; width, 2 1/8 inches; thickness, 1/16 inch. |
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Material of tail: Steel. |
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Type of filling: Picric acid, cast. Tail cone is filled. |
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Weight of filling: 228 pounds. |
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Total weight of bomb: 557 pounds. |
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Charge/weight ratio: 41 percent. |
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Construction of body: The body is constructed of one piece of machined forged steel. There is a threaded nose fuze pocket at the forward end. The after end of the body is threaded internally to receive a tail cone. The tail cone is explosive filled and has a fuze pocket at its apex. |
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Construction of tail: Four fins are welded to the tail cone and braced by a single set of box-type struts. |
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Figure 44 - No. 25 Ordinary Bomb Model 2. |
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