Chapter 11 - Influence Mine Units - SVK and Luftwaffe; Section 7 - Pressure and Pressure-Combination Units - Characteristics of the D 123Chapter 11 - Influence Mine Units - SVK and Luftwaffe; Section 7 - Pressure and Pressure-Combination Units - AD 104 Units
GERMAN UNDERWATERS ORDNANCE MINES
Chapter 11 - INFLUENCE MINE UNITS - SVK AND LUFTWAFFE
Section 7 - PRESSURE AND PRESSURE-COMBINATION UNITS
CHARACTERISTICS OF THE D 133

Sensitivity: 8-10 cm of water (stumpf)

Period: 2-3 seconds negative

Intended for use in shallow waters against fast motor boats.