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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 |
| 5-kg. Parachute Flare Model 2 Modification 1 |
| Fuzes: Pull igniter |
| Over-all length: 25 1/8 inches. |
| Diameter: 3 1/8 inches. |
| Material of wall: Light sheet steel. |
| Type of suspension: None. Thrown by hand from plane. |
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Color and markings: Body is grey oder all. Two labels give description and instruction for use. |
| Type of filling: Illuminant. |
| Weight of filling: 5 pound 8 ounces. |
| Composition of illuminant: |
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Barium nitrate: 55.5 percent. |
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Aluminum, powdered: 11.0 percent. |
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Magnesium, powdered: 18.0 percent. |
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Wax: 9.1 percent. |
| Total weight of flare: 10 pounds, 3/4 ounces. |
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Construction: The flare case is cylindrical and of light sheet steel construction. It con-tains an illuminating candle unit and a parachute, and is closed at both ends by metal caps. The cap on the parachute end may be removed by pulling a tear strip. |
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The illuminating candle unit container is cylindrical in shape and is made of corrugated sheet tin. A copper tube extends the length of the unit and the illuminant is cast around it. A wooden plug is fitted into the top of the flare and is held there by a metal cap and several screws. The fuze is inserted in a hole in the plug and fits down into the copper tube. Four black powder impregnated strips are attached to the fuze and extend down the copper tube to the base of the illuminant. Similar black powder strips are cast in the bottom of the flare. A wooden ring in the base of the candle units holds it away from the bottom of the flare containers. |
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The fuze used is of the pull igniter type. A tin cylinder fits over the end of the fuze and extends up through the parachute to the end cap. The pull cord attached to the catch on the fuze is led up through the tin cylinder to the end cap. |
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The parachute is made of silk and is attached to the candle unit by a length of wire rope. The wire rope is spliced and the two ends are attached to two eyes fastened to the wooden plug in the end of the illuminant container. |
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Operation: The tear strip is pulled and the end cap removed. Then the igniter cord is pulled and the flare is thrown from the plane. The striker in the fuze hits the primer which ignites the powder train. This burns slowly down to the black powder strings cast in the base of the illuminant, igniting the illuminant. The expanding gases expel the candle unit and the parachute from the container. The unit burns for approximately 1 minute and 30 seconds giving off a brilliant white flame. |
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Figure 76 - 5-kg. Parachute Flare Model 2 Modification 1. |
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