BSU-86/B Bomb Fin The BSU-86/B bomb fin is used with general-purpose bombs, Mk 82 Mods, or the practice bomb BDU-45/B (fig. 1-26). The fin provides a retarded (high-drag) or unretarded (low-drag) bomb delivery capability for the aircraft.

The BSU-86/B component drawings were reviewed to establish a test schedule based on the applicable drawing requirements. The testing consisted of chemical analysis, hardness test-ing, metallographic examination, salt fog testing, tensile testing, and intergranular corrosion:.csts.

Assembly of BSU-86 and BSU-85 Fins to GP Bombs. Inspect the BSU-86 fin (fig. 13-9) as follows: 1. Inspect fin for damage and improperly installed or missing parts and corrosion. 2. Ensure that the restraining band is free of corrosion. If damage is found or suspected, complete steps 3 through 7; if no damage, proceed to step 8. 3.

The BSU-86A/B fin attaches to the bomb using eight setscrews and features a unique design that includes a 25-degree wedge at the tips of each fin blade to impart spin upon release, increasing accuracy. The BSU-86A/B fin system is activated when the MAU-199/B spring arming wire (SAW) is …

The BSU-86/B bomb fin is used with GP bombs, Mk 82 Mods/BLU 111 (series), or the practice bomb BDU-45/B. The fin provides a retarded (high-drag) or unretarded (low-drag) bomb delivery...

Installation of BSU-86 and BSU-85/B Fins Install the BSU-86 and BSU-85/B fin assemblies to GP bombs as follows: 1. Attach arming wire to aft lug (fig. 13-11). Thread free end of Mk 3 arming wire from aft bomb lug through MAU-182 swivel ring and arming wire hole in top of fin. 2. Align fin behind bomb body with fin in the X-configuration. 3.

These setscrews are used to fasten the BSU-86/B bomb fins to general purpose bombs. The setscrew is listed on Naval Air Systems Command (NAVAIRSYSCOM) Drawing No. 2877751 and is required to conform to the requirements of Military Standard MS 51963, Setscrew - Hexagon Socket, Cup Point, Alloy Steel, Cadmium Plated, UNC - 3A, Plain and Self-Locking.

GUIDED BOMB UNITS LEARNING OBJECTIVE: Identify the different types, purpose, use, and operation of guided bomb units. GBU-12, GBU-16, AND GBU-10 The GBU-12, GBU-16, and GBU-10 guided bomb units (GBUs) (fig. 1-33) are Mk 82, Mk 83, and Mk 84 LDGP bombs modified to detect a target illuminated by a laser beam.

The BSU-85/B bomb fin attaches to the Mk 83 general-purpose bomb. It is an air-inflatable retarder designed for very low altitudes. It can be dropped in either high-drag (retarded) or low-drag (unretarded) mode (fig. 1-30).

The BSU-86/B bomb fin is used with general-purpose bombs, Mk 82 Mods, or the practice bomb BDU-45/B (fig. 1-32). The fin provides a. retarded (high-drag) or unretarded (low-drag) bomb delivery capability for the aircraft. The BSU-86/B fin is attached to the Mk 82 or BDU-45/B bomb by eight setscrews.