Snakeye Fin Assemblies

in a lightweight, disposable metal crate (fig. 1-25). Some fin assemblies are shipped with bomb lugs attached to the shipping crate, depending upon the particular Navy Ammunition Logistics Code (NALC). Two types of fins are described in this part of the TRAMAN—conical and Snakeye. The conical fin is used for the unretarded mode of delivery, and the Snakeye fin assembly can be used for either the unretarded or retarded mode of delivery. Conical Fin The typical BSU-33 conical fin assembly (fig. 1-26) is steel, conical in shape, and has four fins to provide stability. Access covers, attached by quick-release screws, are located on the sides of the fin body, providing access for dearming and inspections. There is a drilled or punched hole at the top and bottom of the forward end of the fin body. This hole is used to install an arming wire when the bomb is being configured for electric tail fuzing. The fin is attached to the aft end of the bomb, and is secured in place by tightening the fin setscrews into the V-groove of the bomb. The conical fin may be used with all Mk 80 (series) bombs. The basic difference between the types of conical fins is their physical size; the larger the bomb, the larger the fin. Snakeye Fin Assemblies Snakeye fin assemblies are used with the Mk 82 and Mk 83 LDGP bombs. They are capable of delivering bombs at high speed and low altitude without the danger of damaging the aircraft from ricocheting bombs or fragments, A physical description of both fin assemblies and the principles of operation are discussed in the following paragraphs. MK 15 AND MODS SNAKEYE FIN ASSEMBLY.— The Mk 15 and Mods bomb fin Figure 1-26.—Typical fin assemblies. 1-29