Chapter 9 - Special Purpose Mines; The KM MinesChapter 9 - Special Purpose Mines; The MTA Mine
GERMAN UNDERWATERS ORDNANCE MINES
Chapter 9 - SPECIAL PURPOSE MINES
THE KM MINES

The KMA Mine. The KMA was a concrete-base, ground, contact mine with a tripod attachment which was fitted with either a chemical horn and snag line or a chemical horn with extender and sang line. It was a surface-laid anti-invasion type for use in maximum depth of water of 30 feet. It was designed in November 1943 and completed in one month's time.

Description

Height

Base 20 in.; Over-all 88 in.

Length

47 in.

Width

47 in.

Shape

Rectangular, recessed concrete block, fitted with steel tripod on top

Weight of charge

165 lb. of cast hexanite

Total weight of
mine

2,200 lb.

Safety distance

120 ft.

Maximum effective
depth

Up to 30 ft.

Figure 117 – KMA Mine – Elevation View

Figure 118 – KMA Mine

Chapter 9 - Special Purpose Mines; The KM MinesChapter 9 - Special Purpose Mines; The MTA Mine