54th HS Airmen go off the deep end

Staff Sgt. Daniel Vehslage, 54th Helicopter Squadron special missions aviator, secures a flotation device during underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. During the training, the 54th HS Airmen learned how to escape a simulated helicopter crash and properly use common rescue devices. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Staff Sgt. Daniel Vehslage, 54th Helicopter Squadron special missions aviator, secures a flotation device during underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. During the training, the 54th HS Airmen learned how to escape a simulated helicopter crash and properly use common rescue devices. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron go through underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The shallow water egress trainer allows Airmen to practice escape procedures during a simulated helicopter crash. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron go through underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The shallow water egress trainer allows Airmen to practice escape procedures during a simulated helicopter crash. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron prepare for underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The training included demonstrations on how to escape a simulated helicopter crash and properly use common rescue devices. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron prepare for underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The training included demonstrations on how to escape a simulated helicopter crash and properly use common rescue devices. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron engage in underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The training included demonstrations on how to escape a simulated helicopter crash and properly use common rescue devices used by all branches of the armed forces. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Members of the 54th Helicopter Squadron engage in underwater egress survival training at Minot Air Force Base, N.D., June 22, 2017. The training included demonstrations on how to escape a simulated helicopter crash and properly use common rescue devices used by all branches of the armed forces. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

(From left) Capt. David Shadoin, 54th Helicopter Squadron pilot, is briefed by Tech. Sgt. Clifton Cleveland, 5th Operations Support Squadron survival, evasion, resistance and escape specialist, during underwater survival training at Minot Air Force Base, N.D., June 22, 2017. The shallow water egress trainer allows Airmen to practice escape procedures during a simulated helicopter crash. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

(From left) Capt. David Shadoin, 54th Helicopter Squadron pilot, is briefed by Tech. Sgt. Clifton Cleveland, 5th Operations Support Squadron survival, evasion, resistance and escape specialist, during underwater survival training at Minot Air Force Base, N.D., June 22, 2017. The shallow water egress trainer allows Airmen to practice escape procedures during a simulated helicopter crash. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

A 54th Helicopter Squadron Airman fastens a forest penetrator at Minot Air Force Base, N.D., June 22, 2017. The 54th HS uses forest penetrators as recovery devices for people on land and water. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

A 54th Helicopter Squadron Airman fastens a forest penetrator at Minot Air Force Base, N.D., June 22, 2017. The 54th HS uses forest penetrators as recovery devices for people on land and water. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Master Sgt. David Grabher, 54th Helicopter Squadron flight engineer, tests safety equipment at Minot Air Force Base, N.D., June 22, 2017. Underwater egress survival training prepares Airmen to escape during a potential crash into water. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

Master Sgt. David Grabher, 54th Helicopter Squadron flight engineer, tests safety equipment at Minot Air Force Base, N.D., June 22, 2017. Underwater egress survival training prepares Airmen to escape during a potential crash into water. (U.S. Air Force photo by Airman 1st Class Jonathan McElderry)

MINOT AIR FORCE BASE, N.D. --