You do not have to go deep to have a shallow water blackout and drown.
If you are going to do pool PT in a Crossfit style (swim sprints with other exercises) I recommend you limit your breath holding during the swim sprint. If you are in the military have a Dry Medic on the pool deck standing by with all equipment.
June 25, 2015 at 9:42pm
Can someone please site when the USMC used VSTOL in combat?