|
|
| GERMAN UNDERWATERS ORDNANCE MINES |
| Chapter 9 - SPECIAL PURPOSE MINES |
|
The MTA Mine. The MTA Mine consists of a specially designed warhead secured to a modified G 7e torpedo in the manner shown in figure 119. |
|
The mine is launched from the torpedo tubes of E-/or U-boats, which must be stopped at the time of firing. After running its preset course, the mine sinks to the bot-tom by virtue of its negative buoyancy and acts as a magnetic mine, using the M 1 firing unit (Although the MTA could be made to accommodate units suitable for TMB II, only the M 1 firing unit was used.) |
|
Figure 119 – MTA Mine |
|
|
|
Description |
|
Range |
23,000 ft. |
|
Speed |
18.5 ± 1 knots |
|
Accuracy |
± 1300 ft. meters in range ± 1.5% lateral devation at 18 knots |
|
Running depth |
20 ft. |
|
Maximum and minimum depth at target |
Max. 100 ft. - |
|
Weight of charge |
1,000 lb. |
|
Total weight |
3,600 lb. |
|
Clock used |
ZE III |
|
Experiments were conducted with MTA to extend its range to 46,000 yards at a speed of 3.5 knots and to fir a pistol to the mine head. These experiments were not completed and the experimental torpedo was designated "T IId Pudel" while the pistol was designa-ted "Pudel Pistol". The development of an MTB warhead which was to have a larger unit compartment capable of housing later types of influence units was undertaken toward the close of the war, but was never completed. |
|
Figure 120 – MTA Mine – Cross Section |
|
|
 |
