U.S. Marines must be ready to face any emergency situation and be capable to egress a helicopter, upside down, underwater.
For underwater escape training, a system dubbed “helo dunker” is used.
It consists of a mock up helicopter that is plunged into a pool, and then flipped over as a real aircraft would do upon impact with the water.
U.S. Marines are required to test their ability to fight their way clear of restraint and harness to surface and this is what this particular exercise looks like.
H/T to Business Insider’s Geoffrey Ingersoll for the heads up
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