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Petaluma 12th Naval District Target No. 9
BOMB, PRACTICE, 100-LBS, Mk 15 Mod 3
Description. The Mk 15 Mod 3 Practice Bomb is a light-cased, cylindrical body with a threaded filling
hole in its rounded nose. A box fin assembly consisting of four metal vanes attached to a cone is welded
to the aft end of the body. The bomb has two metal suspension band assemblies (each consisting of a
circular clamp, a suspension lug, and two cap screws) for tightening the band to the bomb. The bomb is
used with the practice bomb signal, Mk7 Mod 0 and inert fuze Mk 247 Mod 0 both of which are secured
to the aft of the bomb. Upon impact of the bomb with the target, the signal is detonated, producing a flash
and a large puff of smoke. The bomb is filled with wet sand and when fully assembled weighs
approximately 100 pounds
Length of assembled bomb ...................................................................... 41.2 inches
Diameter ................................................................................................ 8.0 inches
Fin Span ..................................................................................................... 1 1.24 inches
Weight, assembled .................................................................................... 100 pounds
Filler......................................................................................................... Sand, Wet sand, or water
Signal.......................................................................................................... Mk 7 Mod 0
Color .......................................................................................................... Black
References: TM 9-1325-200, Bombs and Bomb Components, April 1966; NAVSEA OP 1664 Volume 2,
U.S. Explosive Ordnance, February 1954
Appendix C- Text / Manuals
Page C - 4