Fuzes: D-3 (a) (with vane cups).

Over-all length: 51 inches.

Length of body: 35 1/2 inches.

Diameter of body: 11 1/4 inches.

Material of wall: Sheet steel.

Type of suspension: Horizontal.

Suspension lug: Normal Navy suspension lug.

Color and markings: Grey over all with a 1/4 inch red stripe forward of the end cap.

Length of tail: 15 inches.

Width of tail: 13 1/2 inches.

Width of tail fins: 2 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.

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 to-gether 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 nose-piece to a steel ring in the boat-tailed attachment. A pull igniter, delay train and quick-match com-position are contained within the smoke unit.

The parachute of light weight white silk is packed compactly in the after piece. The pa-rachute 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 the wire rope is a chock absorber of 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 se-cond block. A round 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.

Figure 83 - 43-kg. Smoke Float.