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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 3 No. 6 Mk 23 Bomb Model 1 |
Fuzes: C-2 (a). |
Over-all length: 40 3/4 inches. |
Length of body: 21 3/4 inches. |
Diameter of body: 7 7/8 inches. |
Thickness of wall: 1/4 inches. |
Material of wall: Steel. |
Type of suspension: Horizontal. |
Suspension lug: Normal Navy type. |
Color and markings: Old markings: Gray over all with a green band around nose. New type markings may be found. |
Length of tail: 18 1/2 inches. |
Width of tail: 10 5/8 inches (excluding tail brake). |
Width of tail fins: 4 3/4 inches. |
Dimensions of tail struts: Length, 7 7/8 inches; width, 1 3/8 inches; thickness, 3/32 inch. |
Material of tail: Sheet steel. |
Type of filling: Picric acid or type 98 explosive. |
Weight of filling: 50 pounds. |
Total weight of bomb: 143 pounds. |
Charge/weight ratio: 35 percent. |
Construction of body: A cast-steel nose is attached by a continuous weld and 2 rows of 10 rivets each to a tubular-steel body. An anti-penetration ring is welded to the ex-terior of the nose 4 inches forward of the rivets. This ring is 2 3/4 inches long and has an outer diameter of 7 7/8 inches. |
A tail cone is held by 1 row if 24 rivets and a continuous weld to a collar which fits into the after end of the bomb body and is held there by 2 rows of screws (14 per row). |
Construction of tail: Four fins are spot welded to the tail cone and braced by single set of box-type struts. A 1/16 inch sheet steel tail brake measuring 10 inches square is wel-ded to the after end of the tail fins. |
Figure 64 - Type 3 No. 6 Mk 23 Bomb Model 1. |
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