220-, 260-pound Frag. AN-M88 (220-lb.) and AN-M81 (260-lb.)

Over-all length

Body length

Body diameter

Wall thickness

Tail length

Tail width

Tail weight

Filling

Weight of filling

Total weight

Charge/weight ratio

Fuzing

Nose - AN-M103, AN-M103A1, M139, AN-M139A1, M140, AN-M140A1 (All iinstanta-neous setting), M135, M135A1, M136, M136A1, M163, M164, M165, M166, T82, M149, T50E1, T89, T91.

Tail - AN-M100A2 or AN-M100A1, M160. (A non-delay Primer Detonator M14 must be used.)

Construction: The Fragmentation Bomb AN-M88 differs from the M81 only in that it has a 0.75-inch steel coil around the body instead of the one-inch coil. Both bombs are constructed in these two ways. In inital production, nose and tail pieces are of cast-steel construction and screw onto a central section of seamless steel tubing. A square helical steel spring is wound around the steel tubing. The nose and tail pieces are parti-ally cut through to afford greater fragmentation (this is similar to the M82, except for the provision for tail fuzes and the Auxiliary Booster M104 in the larger bombs). The majority of AN-M88's and M81's however, have a one-piece steel tubing, and the helical steel spring is wound around the steel tubing, for the entire length of the body.

Suspension is horizontal; two eyebolts are welded to body along the longitudinal axis of the bomb, 14 inches apart. A third eyebolt is welded to the body at the center of gravity 180° removed from the other eyebolt. The tail is the normal box type, secured to the bomb by a locking ring.

Remarks: The initial bombs were filled with TNT; later productions are filled with Composition B with TNT surrounds.

Present production of these bombs does not include the Auxiliary Booster M104, as this was found unnecessary.

Figure 295. 260-pound Frag. Bomb AN-M81