CONSTRUCTION. The container consists of a center beam and two casings, each of which are attached to the center beam by two hinges. The center beam consists of two sheet steel plates, spot welded tohether along their longer flat axis, then froming divergent arcs that conform to the curvature of the SD 2 bombs. (See figs. 103A, 103B, and 103C.)

A U-shaped bracket is fixed between the two steel plates of the center beam by means of rivets. This bracket serves as an attachment for the suspension eye-bolt, the fuze assembly and the bomb release unit. A steel tube, parallel with the lateral axis of the container, is secured to the two steel plates of the center beam, within the U-shaped bracket by means of flanged surfaces at the ends of the steel tube.

The two upper arc-shaped portions of the center beam each have 11 U-slots to permit, dependent upon the methods of stowage, the protrusion of either the ar-ming cables or safety pin lugs of the vanes of the SD 2 bombs. Two steadying bracktes are welded to the center beam.

Figure 103A – AB 70-3 Container

The charging head is screwed to a small steel platform welded to the center beam. A flanged strengthening plate is welded to the lower arc-shaped portions of the center beam. The rectangular flanges, at the extremities of the main beam and the casings, retain the SD 2 bombs within the carrier in the longitudinal axis. A steadying plate is spot welded to each to the casings opposite the U-shaped bracket to accommodate the two securing rods.

The base plate of the fuze pocket is secured to the U-shaped bracket by means of two nuts and bolts. The fuze pocket and enclosed spring-loaded electric termi-nal are secured to the base by two screws. A steel circlip around the 69 D fuze provides the negative for the fuze. Two red covered cables, enclosed in a yellow waterproof cover, complete the electric circuit from the charging adapter to the fuze assembly.

A strong steel sleeve, with a threaded steel cap, is a sliding fit over the fuze pocket. The threaded steel cap is fitted with a small circular polystrene window for visually checking that the fuze is present. The steel release rod is attached to the steel sleeve by means of a steel clip. This release rod passes through an aperture in the fuze pocket base and thence through opening in the U-shaped bracket and steel tube. When assembled, the steel sleeve is secured to the fuze pocket by wire. Two securing rods, with "eyes" formed at either end, secure the casing to the central beam after the loading of the SD 2 bombs. The inner eye enter the steel tube in the central beam, in which position the end of the release rod passes through the eyes, thereby retaining the securing rods. The outer eyes pass through the slots in the respective casings, and are secured on the outside of each casing by the steel split pins. The container is loaded with 11 bombs bet-ween the center beam and casing on each side.

Figure 103B – AB 70-3 Container

OPERATION. On release from aircraft, an electric charge is imparted to the 69 D fuze via the charging adapter; after a delay of 1 second, the propellant charge within the fuze is ignited.

The gas pressure generated drives forward the steel sleeve, disengaging the re-lease rod from the inner eyes of the securing rods. The casings are forced out-wards by the weight of the bombs and the tendency for drogues to spring open. (See fig. 103B.)

(69) D AB 70-3F

22 SD 2 Stör

Gew 52 kg

Figure 103C – AB 70-3 Container