Imperial Japanese Navy Explosives
5kg Parachute Flare Model 2 Modification 1
Fuzes: Pull igniter
Overall Length: 25 and 1/8 inches
Diameter: 3 and 1/8 inches
Material of wall: Light sheet steel
Type of suspension: None
Suspension lug: Thrown by hand from plane
Type of filling: Illuminant
Weight of filling: 5 pounds 8 ounces
Total weight of flare: 10 pounds 3/4 ounce
Composition of illuminant:
-Barium nitrate: 55.5%
-Aluminum, powdered: 11%
-Magnesium, powdered: 18%
-Wax: 9.1%
Color and markings: Body is grey overall. Two labels give description and instruction for use.
Construction: The flare case is cylindrical and of light sheet steel construction. It contains 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.
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 unit holds it away from the bottom of the flare containers.
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.
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.
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.
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 unit holds it away from the bottom of the flare containers.
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.
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.
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.
Type 0 Parachute Flares Model 1 and Model 1 Modification 1
Fuzes: D-3(a), D-4(a)
Overall Length: 42 and 1/2 inches
Length of body: 39 and 1/2 inches
Diameter of body: 6 and 3/4 inches
Thickness of wall: 3/64 inches
Material of wall: Sheet Steel
Type of suspension: Horizontal
Suspension lug: Normal Navy suspension lug
Length of tail: 14 and 3/4 inches
Width of tail fins: 1 and 13/16 inches
Length of tail: 14 and 3/4 inches
Width of tail fins: 1 and 13/16 inches
Dimensions of tail struts: None
Material of tail: Sheet Steel
Type of filling: Illuminant (silver-grey in appearance)
Weight of filling: 66 pounds
Total weight of bomb:
-Model 1: 84 pounds
-Model 1 Modification 1: 88 pounds
-Model 1: 84 pounds
-Model 1 Modification 1: 88 pounds
Color and markings:
-Model 1: Grey overall with 1/4-inch red stripe just below the end piece
-Model 1 Modification 1: Grey overall with a 1/4-inch red stripe just above the end piece and a 1/2-inch white stripe around the body.
-Model 1: Grey overall with 1/4-inch red stripe just below the end piece
-Model 1 Modification 1: Grey overall with a 1/4-inch red stripe just above the end piece and a 1/2-inch white stripe around the body.
Construction: The flare consists of three main elements: (1) the flare case, (2) the illuminating candle unit, (3) the parachute.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 26 inches
Length of illuminant: 24 and 1/2 inches
Diameter of illuminant: 5 and 1/2 inches
3. Model 1: A single silk parachute is housed in the after end of the body. It is surrounded by a layer of cardboard to insure smooth ejection.
Model 1 Modification 1: A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 26 inches
Length of illuminant: 24 and 1/2 inches
Diameter of illuminant: 5 and 1/2 inches
3. Model 1: A single silk parachute is housed in the after end of the body. It is surrounded by a layer of cardboard to insure smooth ejection.
Model 1 Modification 1: A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
Operation: Shortly after being released from the plane the aerial burst fuze operates. The resultant flash from the magazine ignites the ignition charge which in turn ignites the illuminant. The expanding gases force the end cap off and eject the parachute and illuminating candle unit. The flare sheds a bright white light and burns for 3 minutes and 40 seconds.
Type 0 Parachute Flares Model 2 and Model 3 Modification 1
Fuzes: D-3(a), D-4(a)
Model 2
Fuzes: D-3(a), D-4(a)
Model 2
Overall Length: 38 and 1/2 inches
Length of body: 35 and 1/2 inches
Diameter of body: 6 and 3/4 inches
Thickness of wall: 3/64 inches
Material of wall: Sheet Steel
Model 3 Modification 1
Model 3 Modification 1
Overall Length: 42 and 1/2 inches
Length of body: 39 and 1/2 inches
Diameter of body: 6 and 3/4 inches
Thickness of wall: 3/64 inches
Material of wall: Sheet Steel
Type of suspension: Horizontal
Suspension lug: Normal Navy suspension lug
Model 2
Length of tail: 13 and 1/2 inches
Model 2
Length of tail: 13 and 1/2 inches
Model 3 Modification 1
Length of tail: 15 inches
Dimensions of tail struts: None
Material of tail: Sheet Steel
Type of filling: Illuminant
Weight of filling: 66 pounds
Total weight of bomb:
-Model 2: 84 pounds
-Model 3 Modification 1: 88 pounds
-Model 2: 84 pounds
-Model 3 Modification 1: 88 pounds
Color and markings:
-Model 2: Grey overall with 1/4-inch red stripe just below the end piece
-Model 3 Modification 1: Grey overall with a black stripe around the nose and a 1/4-inch red stripe above the end piece.
-Model 2: Grey overall with 1/4-inch red stripe just below the end piece
-Model 3 Modification 1: Grey overall with a black stripe around the nose and a 1/4-inch red stripe above the end piece.
Construction: The flare consists of three main elements: (1) the flare case, (2) the illuminating candle unit, (3) the parachute.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 26 inches
Length of illuminant: 24 and 1/2 inches
Diameter of illuminant: 5 and 1/2 inches
3. Model 2: A single silk parachute is housed in the after end of the body. It is surrounded by a layer of cardboard to insure smooth ejection.
Model 3 Modification 1: A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 26 inches
Length of illuminant: 24 and 1/2 inches
Diameter of illuminant: 5 and 1/2 inches
3. Model 2: A single silk parachute is housed in the after end of the body. It is surrounded by a layer of cardboard to insure smooth ejection.
Model 3 Modification 1: A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
Operation: Shortly after being released from the plane the aerial burst fuze operates. The resultant flash from the magazine ignites the ignition charge which in turn ignites the illuminant. The expanding gases force the end cap off and eject the parachute and illuminating candle unit. The flare sheds a bright white light and burns for 3 minutes and 40 seconds.
Experimental Model 11 Parachute Flares
Fuzes: D-3(a), D-4(a)
Model 11 Conical
Model 11 Conical
Overall Length: 45 inches
Length of body: 43 and 1/2 inches
Diameter of body: 9 and 1/4 inches
Thickness of wall: 3/64 inches
Material of wall: Sheet Steel
Model 11 Ogival
Model 11 Ogival
Overall Length: 46 and 1/2 inches
Length of body: 43 and 1/2 inches
Diameter of body: 9 and 1/4 inches
Thickness of wall: 3/64 inches
Material of wall: Sheet Steel
Type of suspension: Horizontal
Suspension lug: Normal Navy suspension lug
Length of tail fins: 13 and 3/4 inches
Length of tail fins: 13 and 3/4 inches
Dimensions of tail struts: None
Material of tail: Sheet Steel
Type of filling: Illuminant
Weight of filling: 68 pounds
Total weight of bomb:
-Model 11 Conical: 106 pounds
-Model 11 Ogival: 110 pounds
-Model 11 Conical: 106 pounds
-Model 11 Ogival: 110 pounds
Color and markings: Grey overall with 1/4-inch red stripe above the end piece
Construction: The flare consists of three main elements: (1) the flare case, (2) the illuminating candle unit, (3) the parachute.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 25 and 3/4 inches
Length of illuminant: 23 and 3/4 inches
Diameter of illuminant: 7 and 3/4 inches
3. A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
1. The flare case consists of three sections: a nosepiece, body, and end cap. The nosepiece is soldered securely to the body, and the hemi-spherical end cap is held in position by spot soldering in four places. Four tail fins are welded to the after two-fifths of the body. A steel ring 1 inch wide fits around the body at its junction with the tail cone. It is attached to the fins and serves to brace them as well as to retard the velocity of the flare's free fall. The nose is threaded to receive the fuze.
2. The illuminant is contained in a cardboard canister which is covered by sheet brass 0.025 inch thick. The after end is closed by a steel plate held by screws to the cylinder. A 1/4-inch wire rope 65 inches long from which the candle unit is suspended is attached to this steel plate by means of a shackle. The forward end of the container is open and fits against a wooden block in the nosepiece. The illuminant at the opened end contains in its center an ignition charge 3 inches in diameter and 1/4-inch thick.
Length of illuminant container: 25 and 3/4 inches
Length of illuminant: 23 and 3/4 inches
Diameter of illuminant: 7 and 3/4 inches
3. A small guide parachute and a larger parachute are housed in the after end of the body. They are surrounded by a layer of cardboard to insure smooth injection.
Operation: Shortly after being released from the plane the aerial burst fuze operates. The resultant flash from the magazine ignites the ignition charge which in turn ignites the illuminant. The expanding gases force the end cap off and eject the parachute and illuminating candle unit. The flare sheds a bright white light and burns for 4 minutes and 40 seconds.
Type 94 and Experimental Type Modification 1 Float Lights
Fuzes: None
Type 94
Overall Length: 11 and 7/16 inches
Length of body: 11 and 7/16 inches
Diameter of body: 2 and 13/16 inches
Thickness of wall: 3/64 inches
Material of wall: Tin Plate
Experimental type, Modification 1
Experimental type, Modification 1
Overall Length: 21 and 3/4 inches
Length of body: 21 and 3/4 inches
Diameter of body: 4 and 3/4 inches
Thickness of wall: 3/64 inches
Material of wall: Tin Plate
Type of suspension: None
Suspension lug: None
Type 94
Type 94
Length of tail: 2 and 3/4 inches
Width of tail: 3 inches
Width of tail fins: 1 and 3/4 inches
Dimensions of tail struts: None
Material of tail: Tin Plate
Experimental type, Modification 1
Width of tail fins: 1 and 3/4 inches
Dimensions of tail struts: None
Material of tail: Tin Plate
Experimental type, Modification 1
Length of tail: 7 inches
Width of tail: 5 inches
Width of tail fins: 2 and 3/8 inches
Width of tail fins: 2 and 3/8 inches
Dimensions of tail struts: 5 inches x 3/8 inch x 1/32 inch
Material of tail: Tin Plate
Type of filling: Calcium carbide and Calcium phosphide
Total weight of bomb:
-Type 94: 2.2 pounds
-Experimental type, Modification 1: 6.6 pounds
Charge/weight ratio:
-Type 94: 23%
-Experimental type, Modification 1: 33%
Total weight of bomb:
-Type 94: 2.2 pounds
-Experimental type, Modification 1: 6.6 pounds
Charge/weight ratio:
-Type 94: 23%
-Experimental type, Modification 1: 33%
Color and markings:
-Type 94: Grey with red pull rings. One paper label
-Experimental type, Modification 1: Chrome yellow. Red pull rings. Two paper labels.
-Type 94: Grey with red pull rings. One paper label
-Experimental type, Modification 1: Chrome yellow. Red pull rings. Two paper labels.
Construction of body: In both types the body is constructed of tin plate rolled into a cylinder with soldered lapped joints. The hemispherical nosepiece and conical tail piece are soldered to the body. The nosepiece houses a lead weight.
The calcium carbide is contained in the forward part of the body, the calcium phosphide in the after part. Two metal tear strips cover water inlet holes in the nose and tail.
The calcium carbide is contained in the forward part of the body, the calcium phosphide in the after part. Two metal tear strips cover water inlet holes in the nose and tail.
Construction of tail: Four steel fins are soldered to the body and tail cone. There are no struts on the Type 94. The fins on the experimental type are braced by a single set of box-type struts.
Operation: The tear strips are removed before dropping. On impact with the water, the water enters the holes formerly covered by the tear strips. Water reacts with calcium phosphide to generate phosphine and calcium carbide to generate acetylene gas.
On contact with the air phosphine ignites spontaneously and the resultant flame is fed by the acetylene which acts as the main source of fuel.
Operation: The tear strips are removed before dropping. On impact with the water, the water enters the holes formerly covered by the tear strips. Water reacts with calcium phosphide to generate phosphine and calcium carbide to generate acetylene gas.
On contact with the air phosphine ignites spontaneously and the resultant flame is fed by the acetylene which acts as the main source of fuel.
Type 94 Model 2 and Type 0 Model 1 Float Lights
Fuzes: None
Type 94 Model 2
Overall Length: 10 inches
Length of body: 10 inches
Diameter of body: 2 and 13/32 inches
Thickness of wall: 3/64 inches
Material of wall: Tin Plate
Type 0 Model 1
Type 0 Model 1
Overall Length: 13 and 13/16 inches
Length of body: 13 and 13/16 inches
Diameter of body: 2 and 7/8 inches
Thickness of wall: 3/64 inches
Material of wall: Tin Plate
Type of suspension: None
Suspension lug: None
Type 94 Model 2
Type 94 Model 2
Length of tail: 3 and 1/4 inches
Width of tail fins: 1 inches
Dimensions of tail struts: None
Material of tail: Tin Plate
Type 0 Model 1
Dimensions of tail struts: None
Material of tail: Tin Plate
Type 0 Model 1
Length of tail: 4 and 1/8 inches
Width of tail fins: 1 and 5/8 inches
Dimensions of tail struts: 3 and 1/8 inches x 1/4 inch x 1/32 inch
Material of tail: Tin Plate
Type of filling: Calcium carbide and Calcium phosphide
Color and markings: Grey overall with two labels posted on body.
Construction of body: In both types the body is constructed of tin plate rolled into a cylinder with soldered lapped joints. The ogival nosepiece and conical tail piece are soldered to the body. The nosepiece houses a lead weight.
The calcium carbide is contained in the forward part of the body, the calcium phosphide in the after part. Two metal tear strips cover water inlet holes in the nose and tail.
The calcium carbide is contained in the forward part of the body, the calcium phosphide in the after part. Two metal tear strips cover water inlet holes in the nose and tail.
Construction of tail:
-Type 94 Model 2: Three tail fins are soldered to the tail cone. There are no struts.
-Type 0 Model 1: Four tail fins are soldered to the body and tail cone and are braced by a single set of box-type struts.
Operation: The tear strips are removed before dropping. On impact with the water, the water enters the holes formerly covered by the tear strips. Water reacts with calcium phosphide to generate phosphine and calcium carbide to generate acetylene gas.
On contact with the air phosphine ignites spontaneously and the resultant flame is fed by the acetylene which acts as the main source of fuel.
Remarks: The Type 0 Model 1 float light has a deflector on the exterior of the nosepiece which prevents it from penetrating too deeply into the water.
-Type 94 Model 2: Three tail fins are soldered to the tail cone. There are no struts.
-Type 0 Model 1: Four tail fins are soldered to the body and tail cone and are braced by a single set of box-type struts.
Operation: The tear strips are removed before dropping. On impact with the water, the water enters the holes formerly covered by the tear strips. Water reacts with calcium phosphide to generate phosphine and calcium carbide to generate acetylene gas.
On contact with the air phosphine ignites spontaneously and the resultant flame is fed by the acetylene which acts as the main source of fuel.
Remarks: The Type 0 Model 1 float light has a deflector on the exterior of the nosepiece which prevents it from penetrating too deeply into the water.
2kg Smoke Float
Fuze: Pull Igniter
Overall Length: 18 and 1/8 inches
Diameter of body: 4 and 3/4 inches
Type of suspension: Thrown by hand
Total weight: 4 and 3/4 pounds
Color and markings: White except for yellow nose
Description: A cast-brass nosepiece weighted with lead is soldered to a conical body of 22 gage sheet metal. A smoke candle unit screws into the nose. An emission tube, supported by three metal disks, passes lengthwise through the center of the body and has a cork plug in the tail end. Three rounded tail fins are soldered around the after end of the body.
The smoke candle unit consists of a casing of light alloy containing a smoke-producing composition. A quick match wich and a length of safety fuse connects the candle with the igniter. The igniter casing contains a release pin, a spring-loaded striker and primer pressed into a plug which screws into the end of the casing.
Operation: The safety pin is removed and the release pin is withdrawn by pulling on the pull ring. The striker spring is compressed until the release pin is free of the casing and then the striker is released. It strikes the primer thus igniting the safety fuse and quick match wick which ignites the smoke composition (after a short delay) which produces a yellow smoke.
Remarks: This smoke float will also be found with a black nose and white body. When so painted, it contains a black smoke unit.
The smoke candle unit consists of a casing of light alloy containing a smoke-producing composition. A quick match wich and a length of safety fuse connects the candle with the igniter. The igniter casing contains a release pin, a spring-loaded striker and primer pressed into a plug which screws into the end of the casing.
Operation: The safety pin is removed and the release pin is withdrawn by pulling on the pull ring. The striker spring is compressed until the release pin is free of the casing and then the striker is released. It strikes the primer thus igniting the safety fuse and quick match wick which ignites the smoke composition (after a short delay) which produces a yellow smoke.
Remarks: This smoke float will also be found with a black nose and white body. When so painted, it contains a black smoke unit.
43kg Smoke Float
Fuze: D-3(a) (with vane cups)
Overall Length: 51 inches
Length of body: 35 and 1/2 inches
Type of filling: Smoke composition
Weight of filling: 42 pounds (including container)
Total weight of bomb: 94 pounds
Diameter of body: 11 and 1/4 inches
Thickness of wall: 1/32 inch
Material of wall: Sheet steel
Type of suspension: Horizontal
Suspension lug: Normal Navy suspension lug
Length of tail: 15 inches
Width of tail: 13 and 1/2 inches
Width of tail fins: 2 and 3/4 inches
Width of tail fins: 2 and 3/4 inches
Dimensions of tail struts: None
Material of tail: Sheet Steel Type of filling: Smoke composition
Weight of filling: 42 pounds (including container)
Total weight of bomb: 94 pounds
Color and markings: Gray overall with a 1/4-inch red stripe forward of the end cap.
Description: The float consists of five sections: a weighted nose, a conical body, a boat-tailed attachment, an after piece and an end cap. All parts are soldered solidly together with the exception of the end cap which is held on by four spot solders. Four fins are soldered to the after piece and boat-tailed attachment. The fuze pocket is located in the side of the after piece and has an extended opening.
The smoke composition is contained in a tin cylinder running from the nosepiece to a steel ring in the boat-tailed attachment. A pull igniter, delay train, and quickmatch composition are contained within the smoke unit.
The parachute of light weight white silk is packed compactly in the after piece. The parachute is secured to a 1/4-inch wire rope which is attached to a shackle on a wooden block. At the junction of the parachute shrouds and wire rope is a chock absorber 3/8-inch bungee rubber strands. On the opposite side of the block are two 1/4-inch wire ropes which lead through a second wooden block to a steel ring at the after end of the boat-tailed attachment.
Lashed securely to one of the 1/4-inch cables is a 1/16-inch cable leading to a pull igniter in the smoke container. A second 1/16-inch cable leads from the shackle on the after wooden block to a small wooden disk contained in the second block. Around this is a black powder ejection charge. A third 1/16-inch cable leads from the shackle to a contact on the body at the top of the container.
The smoke composition is contained in a tin cylinder running from the nosepiece to a steel ring in the boat-tailed attachment. A pull igniter, delay train, and quickmatch composition are contained within the smoke unit.
The parachute of light weight white silk is packed compactly in the after piece. The parachute is secured to a 1/4-inch wire rope which is attached to a shackle on a wooden block. At the junction of the parachute shrouds and wire rope is a chock absorber 3/8-inch bungee rubber strands. On the opposite side of the block are two 1/4-inch wire ropes which lead through a second wooden block to a steel ring at the after end of the boat-tailed attachment.
Lashed securely to one of the 1/4-inch cables is a 1/16-inch cable leading to a pull igniter in the smoke container. A second 1/16-inch cable leads from the shackle on the after wooden block to a small wooden disk contained in the second block. Around this is a black powder ejection charge. A third 1/16-inch cable leads from the shackle to a contact on the body at the top of the container.
Operation: When the aerial burst fuze functions, the ejection charge is ignited. The end cap is torn off and the parachute ejected. As the parachute is blown out, the pull igniter is actuated and the delay train initiated.
The parachute checks the fall of the flare sufficiently to prevent smashing of the case on impact with the water. The smoke composition burns from 5 to 8 minutes giving off a grey-black smoke that is heavier than air.
Next Time: IJN Markers, a "Window" bomb, and the Baka Bomb
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