Xun-1 Training mine
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The Training-1 (训-1, or Xun-1) training bottom mine is a training naval mine developed by Fengxi Machinery Factory (汾西机器厂) in China, and was accepted into service in November 1982. Training-1 training bottom mine can be used to train every bottom mine in the Chinese inventory, as well as for minesweeping training. When the training is completed, a high pressure gas valve is released, and the training bottom mine would float to the surface for recovery.