Airborne adventures with a Green Beret Combat Diver Team

We had, at one time, a mission of parachuting into extreme cold waters. We didn’t have to travel far to find frigid bodies of water. Our choice at the time was the 58-degree waters of the Puget Sound in Washington state. In such water, an unprotected human has a life expectancy of approximately 20 minutes.

The rubber dry suits we wore in the Puget Sound were heavy and watertight.

Some time before the training mission, our technical officer sat with a salesman who hoped to sell to the Green Berets his company’s dry suit. The salesman remarked how easy it was to repair their dry shell – the suit’s external protective layer. He picked up a pencil and poked a hole through his suit’s dry shell and remarked:

“Watch how quick and easy it is to repair our product!”

Our officer pushed one of our dry suits in front of the salesman and invited him to just try and a poke it with the same pencil through our suit. Try as he may he could not achieve the same effect and humbly moved on. In our dive operations we traded comfort for durability. The tech officer rested his case; we stuck with our dry suits.

ODA-155 decked out in Viking Dry Suits. Author on the left. (Courtesy of author)

As the date of the jump arrived, the burning concern of the day was raised by our team medic, who postulated that during parachute operations and upon impact with the water the sudden squeeze to the suit from the impact would blow the neck seal, the suit would then flood with water, and we would subsequently sink from the weight of all the water and drown.

“Water doesn’t weight anything in other water, Mac,” our radioman told the medic.

“It’s evident in Archimedes’ principle of buoyancy,” he added.

Our A-Team commander agreed with the science and finalized it by saying: “We’ll all know for certain when we parachute into the sound wearing these suits, boys!”

That final word gave way to an airborne operation to jump wearing our dry suits into none other than Shark Drop Zone (DZ) of the Puget Sound.

Nerves were alive and firing briskly in their synapses. The science said the suits would not rupture and fill with drowning water, but the horror ran away with several of us.

Me, I just hated jumping, and beyond that you couldn’t pile more worrisome details on me to make the event worse. I surrendered to the notion that my suit would pop and I would sink… I just concentrated on the operation of my buoyancy compensating safety vest that we all wore – a Buoyancy Compensator, Medium (BCM)!

We jumped.

Related: Danger, Mines! Delta Force misadventures in Bosnia

East Coast-based Naval Special Warfare Operators (SEALs) conduct a military free fall into Arctic waters from a MC-130J Commando II aircraft assigned to the 27th Special Operations Wing during Arctic Edge 24 (AE24) in Kodiak, Alaska, Feb. 25, 2024. AE24 is an annual defense exercise for the U.S. Northern Command emphasizing Joint Force operations in an extreme cold weather and high latitude environment and is designed to demonstrate the Command’s ability to conduct Globally Integrated Layered Defense in the Arctic. (U.S. Army photo by Spc. Preston Mothersole)

Splash down!

My suit burped a large volume of air through the neck seal, which snapped back shut after the burp preventing any water from getting in. It was a piece of cake. One man wasn’t so fortunate; his wrist seal had a tiny tear in it which became enlarged when he impacted the water. His suit filled with water and he became neutral buoyant – not negatively as some had worried. But he still had to be pulled from the water immediately.

Our surface jump safety boat rallied and picked that man up. Although he was not a buoyancy risk, he had been subject to hypothermia from the frigid water that had entered his suit in about a half hour. He was hoisted up out of the water and drying out wrapped in wool blankets in no time. The rest of us formed a tactical swim formation and swam in to shore for a beach landing.

Know your equipment. Being technically and tactically proficient is key to success in combat.

By Almighty God and with honor,

geo sends

Editor’s Note: This article was originally published in June 2025.

Feature Image: ODA-155 prepped for dive mission in the Bering Sea. Author in the center. (Courtesy of author)

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