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| GERMAN UNDERWATERS ORDNANCE MINES |
| Chapter 11 - INFLUENCE MINE UNITS - SVK AND LUFTWAFFE |
| Section 4 - MAGNETIC-ACOUSTIC COMBINATION UNITS |
| MA 1, MA 1a, MA 1st, MA 2, and MA 3 MINE UNITS |
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MA 2 with ZK IIc. Figure 206 shows the modification of the MA 2 circuit when fitted with ZK IIc instead of ZK II. The ZK IIc mechanism is designed to require only a very short pulse on its trigger coil to go through a complete cycle. Thus, with a ZK IIc fitted, both magnetic and rate-of-change acoustic actuation are required for "blind" as well as firing actuations. This system is known as MA 2/ZK IIc. |
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