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Archive for the ‘Maritime’ Category

SCUBAPRO Sunday – The First Frogman Ship Attack

Sunday, March 27th, 2022

During the summer of 1918, as World War One ended, the Austrian Navy suffered a series of defeats at the hands of the Royal Italian Navy, which was based in Genoa. The most powerful ships of the Austrian Navy withdrew to the Adriatic Sea port of Pola to avoid capture. Enemy ships could not enter the harbor because of floating booms and barricades designed to encircle and destroy their targets. The Italian Navy attempted several attacks on the Austrian fleet at Pola. Still, it could not penetrate the sophisticated harbor defenses in any of them.

Raffaele Paolucci was an Italian Naval surgeon who devised a plan to infiltrate the harbor at Pola and destroy the largest ships of the Austrian fleet. He was killed during the operation. Even though the sheltered enemy fleet appeared impenetrable to conventional attack, Lieutenant Paolucci had the idea that he might be able to reach the Austrian ships by simply swimming to them with explosives in his possession.

“If I could be dropped off near the entrance to the harbor, a swim of three kilometers would enable me to reach my destination,” Paolucci concluded after consulting charts depicting the Pola estuary.”

Paolucci began training to swim alone into the harbor at Pola while keeping his plans a secret from his friends and family. Evenings and weekends were spent swimming in the lagoons of Venice, building up his endurance to the point where he could comfortably swim five miles without stopping. To simulate the weight of an explosive charge he planned to carry with him to destroy the enemy ships, Paolucci began dragging a 300-pound barrel of water behind him as his stamina grew.

Paolucci presented his plan to his commanding officers in May, confident in his ability to carry out his vision for the military. He was informed of the apparent dangers associated with such a venture. Still, he was instructed to continue with his training.

Paolucci was introduced to Major Raffaele Rossetti in July, who impressed him. In his investigation, Paolucci discovered that Rossetti had designed and built an entirely new type of aquatic weapon. This manned torpedo was ideal for the mission for which he had been preparing himself.

An unexploded German torpedo shell that had washed up on the Italian coast had inspired Rossetti to design and build a sleek submersible craft that could be pulled through the water like a horse, using the long, slender shell as a frame. Rossetti’s rebuilt torpedo was about 20 feet long, weighed one and a half tons, and could propel a pair of riders through the water at a top speed of two miles per hour. It was filled with compressed air that drove two small, silent propellers, powered by compressed air. Located at the front end of the apparatus were two detachable watertight canisters with a capacity of 400 pounds of TNT, each of which could be detached and transported separately. The craft’s position in the water could be changed by adjusting a series of control valves that Rossetti had devised.

Swimming and guiding the torpedo were practiced in the Italian naval shipyard in Venice, where Rossetti and Paolucci worked. Paolucci later wrote, “We had to be in the water clinging to the machine, which moved slowly; we had to steer it with our bodies, and in some cases were forced to drag the apparatus ourselves…we habituated ourselves to remaining in the water for six or seven hours at a stretch with our clothes on, and to passing unnoticed beneath the eyes of the sentries posted along Venice dockyard’s perimeter.”

An Italian navy motorboat brought the two men and their hybrid watercraft to within a few miles of the entrance to the harbor at Pola on the night of 31 October 1918. Rossetti and Paolucci slipped into the water, mounted their torpedoes, and set out to sabotage the Austrian fleet, which was utterly unaware of what they were getting themselves into.

Rossetti and Paolucci submerged the torpedo by riding the incoming tide until only their heads were visible above the water’s surface. They left for Pola at 10:13 p.m. on a Friday. Assuming everything went according to plan, Rossetti estimated that it would take no more than five hours to deliver the explosives to the Austrian ships and return to the waiting Italian motorboat, which was safely anchored away from the sight of Austrian patrol boats.

Rossetti turned off the air valve driving the torpedo’s twin propellers on their way into the harbor, preventing them from being sucked into it. The torpedo was carefully guided up to the first of the barriers that guarded the outer harbor by the two men who had guided it up. The enemy’s searchlights swept across the water, threatening to reveal them to the public. The searchlights passed over them despite their repeated appearances without disclosing their location.

When Rossetti and Paolucci arrived at the outermost barricade at 10:30 a.m., they discovered that it was constructed of “numerous empty metal cylinders, each approximately three yards in length, between which were suspended heavy steel cables.” “….. In the meantime, the two men lifted and pushed their boat over the obstacle, fearful that the sound of metal scraping against metal would alert Austrian guards on the other side of the water. Their efforts went largely unnoticed. “After a great deal of effort,” Paolucci wrote, “we were able to get past the obstruction when I felt myself being seized by the arm.” After a moment’s thought, I realized Rossetti was pointing to a dark shape that appeared to be moving toward us.” They were completely unaware of the presence of an Austrian U-boat, which was gliding past them and out into the Adriatic Sea without using its lights and with only its conning tower above the water.

The two men steered the torpedo slowly toward the seawall that protected Pola’s inner harbor after restarting the torpedo’s motor. While Rossetti waited in the shadow of the seawall, Paolucci swam ahead to find the quickest way into the port. Rossetti was a little late. Instead, he encountered another stumbling block in the form of a gate constructed of heavy timbers studded with long steel spikes.

Paolucci returned to Rossetti’s boat and informed him of his discovery. Rossetti decided to proceed with the mission. It was now against the tide, and the two men had to fight against it to drag the massive torpedo up to the submerged gate. As the tide receded, Rossetti and Paolucci struggled to make their way past the nets and into the harbor where the anchored Austrian battleships were anchored. Paolucci wrote, “our endeavors proved successful.” It was 3:00 a.m. now, and the sun was shining brightly.

The dreadnought SMS Viribus Unitis, the largest ship in the fleet, was chosen as the primary target because it was closest to the shore. Rossetti and Paolucci were swimming through sleet and hail when they noticed the sky beginning to brighten with dawn. Just as they were about to reach the side of the Viribus Unitis, the torpedo began to sink unpredictably.

While Paolucci was frantically trying to keep the torpedo afloat, Rossetti discovered an intake valve that had been accidentally opened, allowing air to escape from the cylinder and sinking the ship. After closing the valve, the two men took a few moments to relax in the shadow of the Austrian flagship. According to Paolucci, “this was unquestionably the worst of all our trying moments.”

They reached the Viribus Unitis at 4:45 a.m. after making their way down a long line of Austrian battleships that stretched for miles. Rossetti detaches one of the TNT canisters from the front of the torpedo and attaches it to the hull of the Viribus Unitis, which was then launched. Rossetti set a timer for 6:30 p.m. when he planned to detonate the 400-pound charge of TNT.

As Rossetti and Paolucci pushed off from the side of the Viribus Unitis, a sentry on the flagship noticed them and alerted the authorities.

The Italians attempted to navigate towards the shore, hoping to find refuge. A boat from the Viribus Unitis was dispatched to capture them as soon as they were discovered. After quickly arming the second canister of explosives, Paolucci set it free in the ebbing tide of the river. As a result of flooding the torpedo’s air cylinder, the ship sank to the bottom.

A group of sailors from the Viribus Unitis apprehended the Italian officers and transported them back to the ship. They were shocked to discover that the Austrian fleet had mutinied during the previous night and that the Austrian admiral had transferred command of the Viribus Unitis to a Yugoslavian captain named Ianko Vukovic. Having been ordered ashore, all German and Austrian crew members were escorted off the ship, leaving the fleet in the care of neutral Yugoslav sailors.

It was 6:00 a.m. at the time. Because Rossetti was aware that the TNT would detonate in half an hour, he informed Captain Vukovic that his ship was in “serious and imminent danger.” “Save your men,” says the captain. Captain Vukovic demanded an explanation calmly. “I’m not going to tell you when, but the ship will be blown up in a short time,” Rossetti said.

Vukovic didn’t waste any time, yelling in German, “Men of the Viribus Unitis, save yourselves and everyone else you can!” “The Italians have smuggled bombs aboard the vessel!” When the Yugoslavian crew members learned of this, they panicked and abandoned the ship. As Paolucci described it, “we heard doors open and shut quickly, we saw half-naked men rushing about madly and clambering up the steps of our batteries, and we heard the noise of bodies splashing into the sea.”

Rossetti took advantage of the sudden panic and inquired of Captain Vukovic about the possibility of saving themselves. Vukovic agreed with me. Rossetti and Paolucci dashed to the side of the ship and jumped overboard. They were captured. They were quickly apprehended by a group of enraged Yugoslavian sailors in a small boat, who took them back to the Viribus Unitis, where they were imprisoned. “We were under the impression that they intended for us to perish on the doomed ship,” Paolucci wrote. The time was 6:20 p.m.

Once again, Rossetti and Paolucci found themselves surrounded by a threatening mob of sailors when they returned to the ship’s deck for the second time. They were yelling at us, claiming that we had deceived them, and others demanded to know where the bombs were hidden. Rossetti rose to his feet and demanded that he and Paolucci be treated relatively as prisoners of war, which was granted. Vukovic ordered his men not to harm the Italians, and they followed his orders.

There was no explosion at 6:30 p.m. when the time came. Neither Rossetti nor Paolucci said anything to one another, as if they were wondering what had gone wrong. Captain Vukovic was still attempting to restore order on the ship’s deck when a storm hit the ship. Crewmen who had abandoned the Viribus Unitis rowed in lifeboats all around the ship, unsure whether to flee to safety or return to the ship as the ship sank.

The TNT charge exploded at 6:44 p.m. local time. When the delayed explosion occurred, Rossetti and Paolucci were taken aback by how quiet it was, describing it as “a dull noise…a deep roaring, not loud or terrible, but rather light.” Instantaneously, however, a massive column of water rose into the air at the ship’s bow and splashed down on the ship’s forward deck. In the aftermath of the explosion, Rossetti and Paolucci requested permission to abandon the ship once more out of shock. Captain Vukovic shook their hands and pointed to a rope they could use to escape into the water, motioning for one of the lifeboats to come and pick them up from the water.

When Rossetti and Paolucci were dragged onto the small boat, they turned to watch the Viribus Unitis sinking into the water. In his book, “The Viribus Unitis,” Paolucci describes how the ship began to heel over more and more until the water reached the level of the deck and the ship capsized utterly. I noticed that the massive turret guns were being tossed around like toys. Towards the keel, I noticed a man crawling until he reached the top of the ship. It was Captain Vukovic who made the announcement. He died a short time later after being struck in the head by a wooden beam while attempting to save his life by swimming to shore after having extricated himself from the whirlpool of water.” Rossetti and Paolucci were transported as prisoners of war to an Austrian hospital ship for their recovery. There, they discovered that the second canister of explosives, which had been set free by Paolucci just before they were apprehended, had exploded against the hull of an Austrian ship named Wien, causing it to capsize and sink.

Italy and Austria signed a peace treaty three days later, on 4 November 1918, bringing the war to an end. The following day, the Italian fleet seized control of Pola, allowing Rossetti and Paolucci to be released from captivity. The two gentlemen were presented with gold medals in recognition of their bravery. Rossetti received a reward from the Italian government of 650,000 lire as compensation for his services. “A war adversary who, in dying, left me with an ineradicable example of generous humanity,” he said of Captain Vukovic’s widow when he presented the reward. Widows and mothers of other war victims received the funds used to establish a trust fund for them.

croatian-treasure.com/viribus

SCUBAPRO SUNDAY – Full-Face Masks

Sunday, March 20th, 2022

Diving with a full-face mask is a great way to protect the face from the water. You may not want the water to touch you for various reasons. The most important reason is if you are in contaminated water or simply chilly, and no one likes cold water on the face. Most masks have a mouthpiece that allows the diver to breathe and speak while wearing the mask. This enables you to communicate while underwater. The direct connection of the full-face masks (FFMs) to the second stage regulator allows for this, rather than biting into the regulator mouthpiece.

Like just about everything, there are benefits and some drawbacks to diving with an FFM. While full-face masks come in various forms, many of them have a larger field of view than standard masks. This gives you a better peripheral for keeping track of your swim/ dive buddy and allows you to view more of the environment during your dive. There is less chance of the mask fogging with the air coming in. There is less chance of you losing your mask from, say, someone was kicking it off in a confined space.

Most FFM can be equipped with a built-in microphone, allowing divers to communicate with one another and the surface. For this reason, professional divers have been using them for years.

The integrated regulator is one of the most considerable positives and can be one of the biggest negatives of diving with an FFM. Because the regulator is built into your mask, it’s less likely to be pulled out of the diver’s mouth.

If your mask comes off abruptly, the regulator comes off with it, making mask retrieval something that could freak some people out if not practiced a lot. The mask is kept from traveling too far by hoses attached to the regulator, but if a diver panics after losing both his mask and regulator, it can cause an emergency. This is why anyone interested in diving an FFM should take a course on using it. One of the main drills in this training is mask removal and replacement and switching to your backup regulator.

If you decide to attempt diving with an FFM, make sure you practice your basic skills, like mask cleaning and retrieval, so that you can switch back and forth.

The diver’s whole face is protected from the water by the FFM. The mask also has a mouthpiece that allows the diver to speak and breathe normally while wearing it. Instead of biting into the regulator mouthpiece with your teeth, the FFM connects directly to the second stage regulator. As you might anticipate, breathing through an FFM is more pleasant than a regular mask and regulator.

Some of the disadvantages are compared to ordinary dive masks. FFMs are notably larger and heavier. Although straps can be tied around the head to prevent the mask from falling off and cutting off your air supply, they are theoretically easier to use. The seals that encircle the entire face are also airtight, lowering the risk of water seeping during a dive. Some people have a more challenging time equalizing when using an FFM. FFM has levers around the nose or a cushioned pocket that allows you to pinch your nose to equalize pressure like you would with a standard mask. There are depth limitations for FFM, so make sure the one you are using/buying can meet what you would like it to do. This could be a pro or a con, you can’t use all FFM on rebreathers only some of them are certified for that use. The Interspiro is used worldwide by the military on rebreathers as is the Dräger FFM.

The biggest advantage is that the mask’s airtightness permits communication devices. This allows the diver to talk to each other and the surface with the right communications set up.

Due to the additional materials required in their manufacture, FFM can be more expensive than half-mask models, making it much more important to know what you’re getting when you buy one.

There are two main types of FFM. One that comes with a regulator like the Ocean Technology Systems (OTS) Guardian, and you add your regulator to, like the SCUBAPRO FFM and the OTS Spectrum.

So how do you choose the right FFM to use? If you are in the military or on a Public Safety Dive team, you will have the mask selected for you. The two most popular groups are the OTS Guardian and the Interspiro AGA. Consider what kind of diving you’ll be undertaking with the mask before starting your search for full-face scuba masks online or in stores.

For easy cold-water diving, all you need is some minimal protection from the water splashing on your face. Full-face dive masks with communications functions, such as those used for underwater weddings, are available if you want to communicate underwater. There are basic underwater transceiver units and more advanced communication systems available.

Look for brands that have received a lot of positive feedback.

Skimping on quality is never a wise idea when choosing equipment that could save your life. Rather than a third-party copycat brand that has never been formally tested for product efficiency, it’s best to invest in a product that has been developed through time and is also guaranteed to last years of use.

Fortunately, today’s market has a lot of great brands producing high-quality full-face diving masks. A few of the brands available include SCUBAPRO, Ocean Technology Systems (OTS), Interspiro, and Ocean Reef.

The sizes of masks are not standard. As a result, you must try them on to make sure they’re comfortable. Make sure when you try it on that you also try it on while wearing a hood, move your head like you would if you were underwater. Also, check to make sure you can clear your ears. Do this by gently pushing upwards on the chin; you may also verify the mask’s snugness. There are different size nose pieces, so make sure you have one in there that fits your nose. Most public safety dive team dive in very low visibility water. A FFM used together with a SCUBAPRO Heads Up Dive Computer are truly one of the best combinations in diving in any situation. It gives you the ability to see your gauges no matter what the visibility. Just about alll the masks shown have a SCUBAPRO HUD on them.

Before you buy an FFM, you should take a class. Honestly, if you have been diving for a while, you will have no problem with this, but there is a class for everything in today’s world, and if you learn one thing, it is worth taking.

Overall, the FFM is a great tool to have in your toolbox.

SCUBAPRO Sunday – Operation Forager the Invasion of Saipan

Sunday, March 13th, 2022

A small detachment of Underwater Demolition Teams(UDT) had participated in the Battle of Kwajalein in January 1944. Still, during the attack on the Mariana Islands and the Battle of Saipan in June 1944, UDT would make its first significant appearance on a large scale. Using a swimmer slate and a sounding line, the men would determine the water depth within the reef that encircled the island, look for potential landing obstacles, and mark paths for the tanks to safely make it ashore without being swept away by deep water. The landing forces used fishing lines and buoys to map out a grid that they would use to get ashore once they reached the shore. This duty would be carried out in broad daylight to make matters even more dangerous, right in front of the Japanese defenders’ eyes.

Draper Kauffman and his two Underwater Demolition Teams (5 and 7) left their cramped crew quarters on the APDs Gilmer and Brooks as the sun rose on June 14, D Day minus one, and began their part in the action, piling into four landing craft that arrived alongside the ships. Swimmers were assigned to survey the approach to a specific beach on each of the 36-foot-long LCPRs, which had sixteen swimmers on each vessel. The Japanese had not anticipated the sheer volume of preparation fires that would reach such a crescendo. They were also not expecting to see swimmers side stroking toward them as the sun rose, led by officers in vessels no more impressive than a motorized black mattress, puttering in via an electric motor toward the well-defended shore as the day broke.

As is customary for Kauffman and his teams, they were only minimally outfitted, sporting trunks, swim shoes, a face mask, and a sheath knife. They didn’t have any fins or snorkeling equipment. Besides the buoy and reel, each pair was also equipped with an acrylic slate and a grease pencil for drawing on the water. Even though they had been trained how to use oxygen–beryllium chloride rebreathers, they did not have any on them at the time. The equipment was heavy and inconvenient. Most of Kauffman’s team leaders decided to ditch their bulky radios as well, in favor of a more rapid swim. To do this, they used a basic sidestroke known as the “invasion crawl,” which allowed them to swim across the reef and into the lagoon. Compared to an overhand crawl, it was less exhausting and produced less splash.

In Kauffman’s mind, they had resigned themselves to the fact that their chances of escaping with their lives were slim. Under Kauffman’s command, Team Five would reconnoiter the Red and Green beaches, while UDT 7 would investigate the Blue and Yellow beaches under Lieutenant Richard F. Burke’s command. He kept his third team, UDT 6, in reserve, anticipating that his casualties would be as high as fifty percent, and he was prepared for the worst. As the LCPRs neared the reef, Japanese artillery shelled the area around the ships. The frogmen began rolling over the gunwales into the water, one pair every twenty-five yards until they reached the water’s surface. A red buoy was dropped by each duo, which was attached to the point marking the seaward beginning of their route to aid them in orienting themselves for the return. When enemy shell splashes began walking in the direction of the buoys, Team 7 executive Sidney Robbins ordered the crews to stop putting them in place immediately. He also made the decision right there and then to discontinue the string reconnaissance technique that Kauffman had instructed them in. He knew it would not be easy, and he was right. The less they had to carry, the better their chances of surviving the harrowing experience that lay ahead. Kauffman and his companion, a frogman named Page, started their puttering daylight run toward the beach shortly after 8:30 a.m. by turning on their small outboard electric motor.

Kauffman wanted his team leaders to maintain some semblance of awareness and potential control over their eight dispersed swimming pairs, so he provided them with motorized mattresses as their starting point. According to Kauffman, he would later call them “the dumbest idea I’d had in a long time,” according to Kauffman. “They were the most magnificent targets,” says the author. He’d been told about the large sharks and man-eating giant clams that were rumored to be in the area during briefings. However, he had advised his men not to take any precautions against them because he believed that more significant threats lay ahead, including Japanese coastal guns, beach pillboxes, and mortars, to name a few examples. Kauffman was forced to abandon his floating mattress experiment due to the sheer volume of incoming fire. As soon as he realized that the morning naval bombardment had done little to aid him in his endeavor, the writing was on the wall for that bizarre scheme. Kelly Turner would be disappointed to discover that his orders to his fire-support ships—target the beachfront first, then slowly move fire inland—had gone largely unheeded by the boats. The first salvos were fired too far inland to neutralize the coastal defenses effectively. Because they could not maintain direct radio contact with the bombardment ships, the frogmen were unprepared to deal with unexpected events. Upon arriving at Blue Beach One, Sid Robbins of Team Seven was taken aback by discovering that mortar teams had set up a firing position out of a cluster of a dozen Japanese barges moored to the pier. Because of the intensity of the barrage that was rained down upon them, Robbins’ swimmers could not recognize Yellow Beach One in the first place.

After several failed attempts, this detachment returned to the Brooks with only two men seriously injured, which seemed to be a small number considering the circumstances. When all of his swimmers returned to the reef, Kauffman informed them that their landing craft would be waiting for them. It turned out to be an unpopular order, as two of his men went missing due to the demand. But, with mortars dropping around his boats, he didn’t want to risk losing any of the critical information he had gathered about the reef and the lagoon. It was also discovered that the route the Marines had envisioned for their waterproofed tanks, which were to be paddled ashore in the wake of the assault waves, would lead them straight into disaster. The road was potholed, and the water was too deep for these improvised amtracks, which were never intended to swim and drowned quickly due to their lack of design. A smooth path that crossed the lagoon in front of Red Beach Three and led diagonally onto Green Two, Kauffman believed he had discovered a better way to get there. After work that night, Kauffman had his most skilled draftsmen create charts based on the lagoon soundings. Commanders of amtrac and tank battalions and transport groups would have hand-drawn maps delivered to them when the invasion force arrived before the next sunrise, allowing them to plan their maneuvers.

Admiral Hill summoned Kauffman to General Watson’s quarters at some point in the evening. “What in the hell is this I’m hearing about your changing the route for my tanks?” the Second Marine Division’s commanding officer inquired. He had wanted them to swim across Red Two to get to the other side.

“General, they’re never going to get through there,” Kauffman assured him, pointing to his maps.

“All right, that’s fine. But you’re going to be the one who leads that first tank in, and you’d better make damn sure that every single one of them gets in safely and doesn’t drown.”

After reading Kauffman’s report and taking into consideration his calm, unwavering confidence, Kelly Turner began to believe that the idea of sending twenty thousand Marines ashore in these newfangled swamp buggies might work out after all.

SCUBAPRO Sunday – FRAMELESS Mask Quick Clips

Sunday, March 6th, 2022

SCUBAPRO’s FRAMELESS is diving’s original frameless mask, and it’s still the best. Its distinctive rectangular single-lens shape is classic, providing an excellent field of view on the periphery as well as straight ahead. By eliminating the frame, you create a mask that sits closer to your eyes. This provides a broader field of view to better take in the underwater sights, plus it reduces volume which makes it easier to clear. Also, since there is no frame, the buckles attach directly to the skirt. This enables the mask to fold relatively flat for packing or for slipping into a BC cargo pocket.

The soft silicone skirt on the FRAMELESS is comfortable yet durable, and the double-edge seal feels good against the skin. The push-button buckle system is easy to use and allows for quick adjustments. Buckles attach to flexible tabs on the skirt; this optimizes strap angle when dialing in the fit. The wide headband spreads the load on the back of the head, greatly enhancing comfort.

After decades on the diving scene, the original FRAMELESS continues to be the mask of choice among professional divers throughout the world. With its excellent field of view and comfortable fit, this stellar mask is destined to maintain its dominant position on the cutting edge of diving well into the future.

The FRAMELESS Gorilla has a slightly larger and wider lens in a matte finish. Single lens mask, featuring a unique lens and skirt assembly without a frame. The Gorilla Mask is a new SCUBAPRO classic for professionals. This single window lens design is for a superior field of vision. Mask has a tempered safety glass lens and a quality double -feathered edge silicone rubber skirt for exceptional comfort and fit. The unique assembly of the lens and skirt without a frame reduces weight, size and lowers the masks overall internal volume for a streamlined style and a snug fit.

This classic robust quality mask positions the buckles on the exterior of the mask body for convenience and comfort. The buckles system is easily adjusted with one-hand. The mask has a large easy to reach with gloved-hand, nose pocket for ear equalization. The wide split strap design provides even tension on the face for a perfect seal.

SCUBAPRO is always trying to set the bar for diving higher. The newest figures for the Frameless and Frameless Gorilla mask is the addition of the comfort strap adapter. This can be added onto any existing masks and adds several features to one of the most iconic masks ever made.  

It allows the FRAMELESS / FRAMELESS Gorilla mask to be used with the SCUBAPRO comfort strap. The Comfort Strap is similar to a ski goggle strap in design, and it clips right into the mask buckle adapter and offers a wide adjustment range. It is also a lot less likely to break mid-dive as it is a nylon strap. The adapter also makes the mask non-magnetic for EOD use, as it removes all metal parts.

It allows the masks to be used with the Odin helmet mask strap. The Odin system allows any mask with quick clips to be attached to any helmet that has the Ops-Core ARC rail systems. To include the Team Wendy helmets and the Galvion (formally Revision) Odin straps are perfect for any time you must wear a helmet well diving. Like using a DPV, Wearing Jetboats, Search and Rescue Operations, overhead environment, or a follow-on assault when you get out of the water.

SCUBAPRO Sunday – Correct Mask Sizing

Sunday, February 27th, 2022

There are a lot of different masks out there. But most of the time, you just go with what is issued to you, which is your standard. Once you are out of training, you can get the mask that works the best for you. Here is the best way to choose a suitable mask for you.

Start by finding a mask that fits your face and your nose. Make sure when you put it on, it fits your face and nose comfortably, and you can pinch your nose if needed to help clear your ears.

When buying a mask, the first issue is determining how it will perform in the water when standing in the diving shop. The best way to answer that question is to go right in. However, there are some indicators you may look for to obtain a good notion.

To see if you can seal the mask on your face, press it against your face and breathe in through your nose. While we’ll get to it, be aware that this can be misleading. To see if the mask suits your face, you must first go through a few steps.

STEP 1: Sit down and look up; from here, lay the mask over your face without the straps and allow gravity to keep it in place.

STEP 2: Have someone inspect the masks outside the seal. The mask should fit the face without covering the hairline or top lip; it’s generally too big if it does. It should always follow the contour of the face and not pull away.

Forward-looking scuba mask red line on the scuba mask’s exterior seal

STEP 3: Have someone inspect the mask’s inner seal; it should sit back behind the eyes and contact the face constantly. It should ideally go around the brows.

STEP 4: Examine your eye location in relation to the lenses’ center. The eyes should be relatively centered in the lenses in the ideal situation. The mask is too tiny if the eyes are wider than the center; if the eyes are very narrow, a smaller or single pane mask may work well.

The first image below displays a somewhat narrowed eye positioning.

The eyes are a little more centered in the second picture with the black mask.

The front eye position on a scuba mask is wide. Black eye position centered on a scuba mask

STEP 5: Inhale deeply through your nose to test the seal. The seal should keep the mask on your face if you look forward.

Front inhalation scuba mask with no strap

STEP 6: Put the strap over your head and tighten it so that it is snug but not too tight. After that, double-check the exterior seal, inside seal, and eye position. Breathe in through your nose one more time to ensure an airtight closure.

STEP 7: Adjust the strap so that the mask frame does not press against any part of your face. Some masks frequently come into contact with the eyes or the bridge of the nose. Any pressure applied to those areas will become uncomfortable or painful over time and should be avoided.

A mask that passes all of these tests is a solid purchase prospect.

What Makes a Seal Bad? “They write a book” Sorry, wrong kind of seal.

Even if you follow all the above procedures, you still can have some issues that can cause leaks. In some cases, a mask will seal in one position but not in another. Ensure the mask stays in place; if the mask strap is too high or too low on the head, the mask may slip out of place, resulting in leaks.

Mask leaking is generally caused by facial hair.

The mask can leak if you grin or have significant smile lines. In addition, if you have a regulator or snorkel in your mouth, the mouth posture may produce a leak. Even with the mouthpiece in place, use a regulator or snorkel mouthpiece to confirm that you have a well-fitting mask while attempting a new mask out of the water.

SCUBAPRO Sunday – Carlson’s Raiders

Sunday, February 20th, 2022

It’s not hard to say that anyone who wanted to be in military Special Forces when they were a kid has watched the movie Gung Ho! So, in honor of Evans F Carlson’s Birthday on the 26th. He was one of the best leaders in military history and helped build today’s Special Forces foundation. He spends over two years in China with the guerrilla, learning unique tactics that he would bring to the U.S. to help fight the Japanese in WW2. We need more leaders like this in the world.

Evans F Carlson enlisted in the U.S. Army at the age of 16 and began his military career in 1912. He served in the Philippines, Hawaii, and Mexico, and less than a year after leaving active duty, he reenlisted in time for the Mexican punitive expedition. During his military service, he was wounded in action in France and was awarded a Purple Heart. He was promoted to Captain in May of 1917 and was made a lieutenant in December of 1917. After the war, he entered the Marine Corps as a private and gained the rank of second lieutenant the following year. Meanwhile, in Nicaragua, he was awarded the first of three Navy Crosses. In 1940, he became an observer in China during the years leading up to World War II and was impressed with the guerrilla warfare being waged against Japanese troops. While he was in Japan, he became convinced that Japan would attack the United States.

He advised General Douglas MacArthur of an impending invasion in the Philippines and the need for guerrilla units in case the Japanese army attacked. However, MacArthur ignored his recommendation.

Carlson returned to the United States and joined the United States Army again. Carlson and Merritt Edson advocated the use of guerrilla warfare as part of the Allied Pacific War effort. After Edson was assigned the 1st Raider Battalion, Carlson received command of the 2nd Raider Battalion.

Approximately 7,000 applied for enlistment in the 2nd Raider Battalion, but many people that applied were rejected. He asked each candidate about the political significance of the war. He later said he favored men with initiative, adaptability and held democratic views. James Roosevelt, the son of Franklin D. Roosevelt, became Carlson’s assistant.

The Raiders learned the tactics employed by the Red Army against the Japanese. This practice involved learning how to kill people silently and quickly. To more effectively imitate the guerrillas of China, Carlson eliminated the privileges of officers. The same level of nutrition, wearing the same clothing, and carrying the same equipment were all factors.

Carlson’s field research into the Red Army convinced him that trust in the men in battle improved their performance and the belief in a better pollical system. So, he would provide information on how undemocratic governments are under Nazi Germany and Japan. Also, he encouraged the men to discuss their vision of a functioning society after the war.

In August of 1943, Carlson and 222 marines left Pearl Harbor and landed on Makin Atoll. After two days of battle, Carlson’s men destroyed the radio station, burned the radio station’s equipment, and captured documents. Thirty marines were among the first to die during the Battle of Tarawa. As a result of this raid, the Japanese fortified the Gilbert Islands.

On 4 November 1943, the Raiders landed on Guadalcanal. During the next 30 days, Carlson’s man killed over 500 enemy soldiers and only lost 17. Carlson had been wounded and was forced to return to the United States for medical treatment.

Carlson’s superiors expressed concern about his unorthodox tactics and ideas. They were also concerned about his relatively close relationship with Agnes Smedley. This radical journalist was involved in campaigning for USA support of communist forces in China to help them defeat the Japanese Army in Asia.

In May of 1943, Carlson was promoted to be the Raider Regiment’s executive officer and was stripped of the direct command of his battalion during the Guadalcanal campaign. Carlson was also upset with his superiors by becoming involved in a controversial project of publishing pamphlets on the contribution of the Afro-Americans in the war. Carlson eventually returned to action in November 1943 at the battle of Tarawa. On Saipan, he received severe wounds when trying to rescue a radio operator who the Japanese had shot.

Carlson eventually returned to action at Tarawa in November 1943. During the Battle of Saipan, he was injured while rescuing a radio operator who the Japanese had shot. Being injured caused him to have to retire from the United States Marines after the war.

Below is the movie.

warfarehistorynetwork.com/2015/07/27/evans-carlson-forms-carlsons-raiders

SCUBAPRO Sunday – Desert Storm False Invasion

Sunday, February 13th, 2022

With four Republican Guard heavy divisions and the equivalent of a fifth, made up of commandos, Iraq invaded Kuwait on 02 August 1990. Then U.S. President George H. W. Bush quickly said that the United States didn’t condone Iraq’s actions.

During Operation Desert Shield, President Bush formed a coalition (“a collation of the willing” Chapelle) of 35 countries to protect Saudi Arabia and then free Kuwait. On 06 August, the U.S. sent troops to Saudi Arabia, the 82nd Airborne Division and Special Forces were some of the first on the ground (I am sorry if I missed other groups). This began a buildup of combat power in the region, which at its peak had about 600,000 U.S. troops there at one time.

During Desert Shield, some smaller operations took place, including Visit Board Search and Seizure (VBSS), Special Reconnaissance looking for SCUDS and Combat Search and Rescue (CSAR), and running around in Desert Patrol Vehicles (DPVs they would be the first forces into the city of Kuwait) but indeed General Schwarzkopf was not a fan of any Special Forces. He didn’t want to use them for anything. He even had operators from Delta guarding him. On 17 January 1991, Desert Shield turned into Desert Storm with the start of the air campaign. More than 18,000 air missions were flown and more than 116,000 combat air sorties by the U.S. and between 32-40 other countries, including several Arab countries. They dropped 88,500 tons of bombs on the enemy.

On 28 February 91, the ground war started again; a lot of groups played different roles in the invasion. Special Forces Groups conducted special reconnaissance, CSAR, and Direct-Action missions.

Naval Special Warfare (NSW) Group One had run NSW Task Group Center based out of Ras Al-Mishab. There were SEAL platoons from almost all west coast teams, including a Platoon for SEAL Team Five and a boat Det from Special Boat Unit 12.

One of the Platoons from SEAL Team Five and the High-Speed Boat (HSB/ HSAC )Det from SBU-12 was tasked with conducting an over the horizon beach attack to fool the Iraqis into thinking a full-scale amphibious landing was going to happen. To help with this, over the horizon, off the coast of Kuwait, was an armada of ships, each carrying approximately 17,000 Marines, all ready to land on the beaches. But, the only amphibious assault of Kuwait would be carried out by a half-dozen Navy SEALs. Lt. Tom Dietz (the only reason I am using his name as this is well documented) and five other SEALs would drive up the coast from Ras al-Mishab in a pair of Fountain-33 HSBC as the sunset on Saturday, 23 February, the day before the allies were scheduled to commence the ground campaign. The Fountains, propelled by 1,000-horsepower MerCruiser engines, sped up the Kuwaiti coastline at 40 miles per hour. This might sound fun, and at first, it is, but it is not the best on the knees. That night, the water temperature was a bone-chilling 50 degrees Fahrenheit in the gulf. It was even more concerning because it was plagued with mines. The SBU 12 boat guys sailed blindly, with their lights turned off, knowing that if their thin-shelled boats encountered a mine, it would not end well for them. When they entered the minefield, they traveled slowly at first; then, after some talking realized fast or slowed if they hit a mine, it would be not good, so travel fast was decided to be the best plan.

Dietz’s speedboat came to a halt 15 miles off the coast of Kuwait at approximately 10 p.m. His team was able to free the Zodiac rubber raiding boat attached to the bow. After swimming up to Kuwaiti beaches in stealth for a month, searching for prospective amphibious landing sites, the SEALs discovered that all of them were well fortified and mined, indicating that they would be difficult to reach. Dietz’s two motorized Zodiacs made their way gently to the coast, halting every few miles so the commandos could look and hear what was going on.

The F470 Zodiac stopped about five hundred yards from the beach, and the swimmer were launched. Each carried haversack with C4, which they would use to string buoys out along the swim to the beach. These buoys with a diameter of four feet would give the impression that the buoys were marking impending amphibious ships. The beach charges were set for 1 a.m. local time about 3 hours before the Collation forces began breaching the minefields along the Kuwait border on Sunday, 24 February. This would give the Iraqis time to move troops east to the coast, where the fake invasion was thought to be happening. The importance of time could not be overstated. For the Iraqis to respond effectively, they must be allowed to do so by moving forces east in response to the diversion rather than reinforcing soldiers in the west, where the actual attack would occur.

The SEALS kept an eye on the coast while swimming toward the beach together. Each swimmer had an MP5 with them, and SBU-12 HSP was slowly making their way towards the beach to help in an emergency and for a follow-on mission after the platoon was back to the F470s. The team would stop and look at the beach with a pocket night-vision scope every hundred yards. In the early 90s, items like that were not as waterproof as they are now, so it was stored in a good old plastic bag. They even made all black surfboards sent from Coronado to carry radios. Because of the smoke from the oil wells burning, the night seemed even more ominous. The sand on the beach was white and looked like it had just snowed out even though it was sand.

The crew split out on the shoreline and unloaded its haversacks in around a foot of water. The rest of the team followed suit. Dietz instructed the timers to be set by using hand signals. The SEALs exfilled keeping an eye on the beach. After closing in on the Zodiacs, the HSBC opened up on the shore with their .50-caliber machine guns for half an hour in an attempt to make the Iraqis think a more significant force was attacking the coastal fortifications. Two-pound charges were dropped off the sides of the boats and exploded every five minutes. Around the same time, the USS Missouri battleship opened up with her 16in guns, firing 2700lbs shells over the heads of the guys in the boats. They were firing at the Iraqi command bunkers near the Kuwaiti coastline, helping with the illusion that an American-led amphibious assault on occupied Kuwait would be on the horizon. At precisely 1 a.m., explosives on the beach went off. Dietz radioed back the code word “Pamela,” meaning “mission completed.”

After a brief pause, Missouri fired once more into Iraqi-occupied Kuwait. This time, the Marine Corps dispatched ten helicopters to mimic a landing force on the ground in Iraq. The Iraqis launched anti-ship missiles at Missouri, but a British ship intercepted and destroyed the lone missile that posed a severe threat to the warship. Coalition jets were able to locate and destroy the missile launch point quickly.

As a result of the bombardment’s effectiveness, Iraqi troops sought to surrender to the drone (from the USS Missouri) that flew back over the target area, waving little white flags. For the first time in history, troops would try and surrender to a drone.

Hundreds of lives were saved during Desert Storm due to this fictitious amphibious assault by Naval Special Warfare. After six weeks of air attacks, the ground campaign only took 100 hours before Kuwait was freed. On 28 February, a ceasefire was established, effectively putting an end to the hostilities until Iraqi dictator Saddam Hussein agreed to the peace agreement provisions. The coalition forces suffered a total of 300 casualties in the combat, which is significantly less than the number of deaths they would have suffered if the Iraqi troops had been permitted to concentrate on the actual threat.

Sneak Peek – 9” Maritime Shoes from Altama

Wednesday, February 9th, 2022

The Altama Maritime line of footwear is extremely popular and it’s about to get an addition. Previewed at SHOT Show, this new 9″ variant is currently in production in four colorways. However, they’re still about a year out from release. Altama is still trying to come up with a name.