Posts by popgun pete

    From the facebook page.

    In January 2020, a version of Dreamair Unreal was built with aluminium air barrels in order to reduce construction time and costs.

    Dreamair Unreal will be available in 3 versions:

    1) Dreamair Unreal with 3 air barrels made of Carbon Fiber with CNC & Filament Winding. It is the top version and supports the highest loads and performance.

    2) Dreamair Unreal with 3 air barrels made of aluminium, similar in architecture with CF. It is the middle class of charges, performance and cost.

    3) Dreamair Unreal with single aluminium air barrel which is the most economical version and supports the lowest loads and performance. In this version the load diagram is not inverted and looks like conventional airguns.

    Dreamair Unreal with aluminium air chambers does not show galvanic corrosion between carbon fiber and aluminium (there is a relevant guarantee).

    The Dreamair Unreal with single aluminium air barrel can be loaded with 26 bar pressure max and it will be the first to be available.
    Cost of first guns is around 800 euro.


    You can place an order now for the number 3 model by emailing the inventor/manufacturer zournatzis@gmail.com.

    I think this is a batch price and not the price of one gun being ordered on its own.


    I was looking at the piston nose which has a ring of small hemispherical bumps on the face of the piston. Mares was one of the first to do this and I think their purpose is to align the piston as it presses on the shock absorber anvil by the bumps sitting just inside the bore hole (although in my original Cyrano those bumps are positioned well inside the hole, so there they seem to do nothing). Therefore the ring of bumps may have a piston centralizing function.

    Thus it was with some surprise that I noticed the similar bumps on the Omer/Sporasub piston nose actually sit on the face of the shock absorber, not inside the bore hole, which means a high contact pressure when the bumps slam into the shock absorber face. This would seem to be a recipe for cracking pistons and shock absorbers until those bumps flatten off as it concentrates the impact on small contact areas. I noted that the “Air XII” had what looked like a spare shock absorber in the bag that contained the hand loader and the gap between piston and shock absorber could be easily seen by looking through the relief ports as the piston was sitting on the bumps!


    Due to the STC vacuum type muzzle on the "One Air" it is not easy to see the piston nose even with the front end cap unscrewed, but there the piston seems to be sitting on the front ring of bumps. Now this allows water to drain that would otherwise be trapped between the anvil face and front piston seal by the piston pressing hard on the anvil, but I doubt that is why it was done this way.


    https://www.nytimes.com/2020/0…g-king-is-dead-at-82.html


    Jay Riffe, Spearfishing King, Is Dead at 82

    He became a champion in sport fishing while in his 20s and went on to found a leading company in the manufacture of spearfishing and diving gear.

    13riffe1-jumbo.jpg?quality=90&auto=webp
    Jay Riffe in the late 1950s. He said took up spearfishing with his older brothers just “to get food for the table.”Credit...via Riffe family

    By Tom Mashberg

    • July 14, 2020

    Jay Riffe recalled his first spearfishing outing as a fearsome affair — not for the fish but for him. Mr. Riffe, a celebrated California speargun designer, entrepreneur and pioneer of tankless hunting and diving, was about 10 years old, stalking lobster and sea bass in 70-degree Pacific waters while wearing a sweatshirt, gardening gloves and boxer trunks.

    “When you came out,” he recalled of his early forays as a sport fisherman in a 2015 interview with the podcast “The Spear,” his body would be bruised and battered “from being rolled in the surf and the rocks and the sea urchins.”

    He added, “But no one ever complained because this was the sport — this was the thrill.”

    When he died on May 11 at 82, at his home in Dana Point, Calif. — a death not widely reported beyond spearfishing circles — Mr. Riffe left behind a trail of accomplishments in his undersea world, including breaking three world records for deepwater sport fishing; founding Riffe International, a premier American spearfishing and freediving equipment maker; and advancing a campaign for sustainable-fishing regulations. His family said the cause was heart failure.

    A powerfully built freediver who could hold his breath for five minutes or more while chasing after tuna, grouper and dorado at depths of up to 100 feet, Mr. Riffe (pronounced rife) first took up spearfishing with his older brother John for a simple reason — “to get food for the table,” as he put it.

    By age 22 he was the Pacific Coast spearfishing champion

    “Back then the water was so clear, you could see down forever,” he once recalled, adding that the abundance of fish off Palos Verdes and Laguna Beach was far greater than it is today. “So spearfishing started to spread by word of mouth,” he said, and hunters were looking for guns that were easier to hoist and did not “go off like a spring-loaded bazooka.”

    For nearly 50 years, beginning in the late 1960s, Mr. Riffe built and developed spearguns and other devices that revolutionized the sport in the United States. His company used supple woods, like teak, which could be grooved to fit a spear shaft snugly; corrosion-resistant magnets, which kept spear tips from wobbling; and textured nylon grips, which kept guns from slipping from the spearfisher’s hand.

    “He was a gentle giant, and he had a passion for engineering the perfect speargun for the world,” said his wife, Jackie Riffe, who co-founded Riffe International. Along the way, she said, her husband boated and hunted with the likes of Desi Arnaz Jr., Bing Crosby, Jacques Cousteau and Buzz Aldrin. “Everybody wanted to hear Jay Riffe’s stories,” she said. “He was known all over the world.”

    Jesse Taylor Riffe Jr. was born on Feb. 23, 1938, the son of Jesse Sr. and Eva May (Mortimer) Riffe. He started his diving career at age 8 as a “caddy” for his eldest brother, John: John would dive down to grab lobsters and abalone and Jesse Jr., who came to be known as Jay, would swim above and collect the catch in a rucksack.

    John would go on to become a Navy frogman while Jay worked as a lifeguard, married Jackie Pierson and moved to Australia in 1973 to help start up the DoALL Co., a maker of industrial machinery.

    He returned to California a year later to set up DoALL’s American operations and to help raise his two daughters, Julie and Jill. Budgets were tight, his daughter Jill Riffe Salerno said.

    “He was really stressing out to make ends meet, and part of that was catching fish for dinner,” she said. “He had this wood bench in the garage where he would filet everything — yellow tail, dorado, white sea bass, calico bass, lobsters — and we would go camping and fishing along the beaches in Mexico too.”

    Mr. Riffe soon realized that the spearguns prevalent on the West Coast were unwieldy and inaccurate. An inveterate tinkerer, he set up a shop in his garage in Dana Point, south of Los Angeles in Orange County, and began perfecting what became the Riffe line, led by a gun called the Marauder. (The smaller Riffe Euro gun will be featured in a forthcoming James Bond movie, “No Time to Die.”)

    Before long Mr. Riffe’s garage became a focal point for “spearos,” and demand for his handmade guns grew. Soon he had a small plant and warehouse as well as hunting buddies and customers like Mr. Arnaz and Mr. Cousteau. Today, Riffe International makes all of its spearfishing equipment a few miles down the road in San Clemente.

    “He dove with many influential people,” Jill Riffe said. “Plane tickets would arrive from the Middle East and Europe because they all wanted to dive with Jay Riffe.”

    merlin_174517689_b13369ef-21ab-4371-8551-c44b8aecc6b0-jumbo.jpg?quality=90&auto=webp
    Mr. Riffe in his element. He was an advocate for sustainable-fishing regulations. “We have to fish so that future generations can enjoy the sport,” he would say.Credit...Tony Smith

    Mr. Riffe broke three world records for sport fishing in the 1970s, catching a 62-pound wahoo, a 44-pound dorado and a 286-pound yellowfin tuna. “That tuna, he wanted to take me out to sea,” Mr. Riffe recalled. He hung onto a float until the tuna tired, then descended to apply the coup de grâce.

    Mr. Riffe was instrumental in altering sportfishing rules so that hunters would be required to submit one catch per contest, rather than accumulate as many fish as possible to win by overall weight.

    “Dad always said, ‘We have to fish so that future generations can enjoy the sport,’” Jill Riffe said. “He didn’t want people to abuse the power and overtake or deplete the stock. He was very firm about keeping it selective and sustainable.”

    She said he had encouraged freedivers to harvest just what they needed. “Conservation was his philosophy,” she said

    In addition to his wife and daughter Jill, Mr. Riffe is survived by his daughter Julie and several grandchildren. The family plans to hold a memorial service in August.

    Like all great fishermen, Mr. Riffe had his share of harrowing undersea encounters, including coming jaw to jaw with a great white shark (no blood drawn by either side), and finding himself among a swarm of hammerheads off Costa Rica while teaching the sport to his daughter Julie, herself a highly accomplished spearo.

    “She learned how to cope fast,” Jill Riffe said. “It’s a pretty surreal moment when you realize that down there you’re just part of the food chain.”

    Mr. Riffe, who owned a fishing cruiser named “The Silent Hunter,” took his last dive in 2010 off Baja California. He always said freediving was the best way to spearfish because it required enormous patience and concentration, without the benefit of a scuba tank, to hold one’s position until the right prey came along.

    “There was no greater way to build up your body and your lungs,” he said, “and no greater way to be in the ocean".
    cean.”e said, “and no greater way to be in the ocean.”

    Andreas says the compression ratio is about 1.5. The central tube is a cylinder, but the flanking side tubes are tapered, so the volumes of these outer cones determines the compression ratio as well as the stroke of the piston in the central tube. Shorter or longer guns may have different tapers on their flanking tubes which would mean slight variations in the compression ratio for those guns. The shape of the outer hull determines what can be fitted inside it.

    Bear in mind that the discharged gun has the piston at the rear of the central tube. When you load it by drawing the wishbone back the inner cable draws the piston forwards to about half way up the central tube, this distance being dictated by the length of the spiral tracks on the inner and outer winding drums.


    One way to remember to swing the line release lever back on these "Airbalete" family guns is to apply the safety lever after a shot and the victim has been collected and dispatched. This is because the safety will not move fully forwards to be "on" until the trigger is swung forwards, and that requires the line release lever swung back. You can then muzzle load the gun, complete the line wraps and when ready to resume hunting switch the safety lever "off" by swinging it back to lie horizontally. Personally I don’t like the safety on these guns, but here you can put it to good use.

    Removing the rear handle frequently for post dive cleaning may do in the tight fit on the big pin that has to be removed and replaced each time.


    After studying the rear handle I think the best way to allow water in and out is to drill down either side of the boss inside the handle so the holes emerge in front of the trigger. That way the cup created inside the rear handle will drain if you place the gun muzzle up for a while before standing the gun on its nose. Small holes in the barrel cup section would allow it to drain, but water would still stay in the inlet valve opening and as you need to up end the gun to let the water out of there the drain holes are better placed in the handle section. You could drill below the boss, but the hole would pass through the location that the fixing pin is located and that would prevent the area draining. The holes only need to be small, so don't drill holes any larger than they need to be.


    Interesting to look at the pumping tables, especially as all these "Airbalete" rear handle guns use the same hand pump.

    The larger the tank volume is in a gun then the more pump strokes are needed to reach a given pressure. The "Airbalete" must have a bigger tank than the “One Air” as for the 100 cm guns it is 1270 vs 961. The "Air XII" 100 cm requires 1135 for the same pressure of 30 atm. This explains why the "One Air" stayed with the 11 mm diameter inner barrel as a smaller tank makes the compression ratio go up. It would have been a different matter if the entire "One Air" gun body was a tank as then it could have used a 13 mm diameter inner barrel as the compression ratio would be much lower.

    Interestingly at one time early "Airbalete" guns had a return spring on the line release lever, but it was later deleted. Possibly the spring was weak and useless, or too strong, particularly as with the "One Air" with its front tied spear as soon as the spear moves it pulls on the line release lever.

    The on-line pdf version of the Sporasub "One Air" manual has the warning page incorporated rather than being an afterthought which is stapled into the booklet. When someone decided that it would be a good idea to actually display this message on the body of the gun they obviously took it literally!


    Yes, going cheap as they are looking to get rid of them. Curiosity only as not a gun that I would normally buy, but a chance to check out its construction and flaws. The working course of the piston is shortened by the handle hanging on the back and the front tied spear is not a great idea as it can affect accuracy. Omer made good guns back in the Master days, but they dropped the ball in recent years.

    The firing at the completion of muzzle loading must have given Omer, or more likely the Taiwanese, the heebie-jeebies as not only did you have warnings in the operating manual and red stickers festooning the gun, they also put this hieroglyphic on the muzzle of the gun. I did not notice it at first and was gobsmacked when I saw it. This has to be a first!

    Sporasub One Air warning stickers R.jpg

    Sporasub One Air muzzle warning R.jpg

    Sporasub One Air muzzle underside R.jpg

    Sporasub One Air sign R.jpg

    The matt black finish on the tank looks more like paint than anodizing, maybe another short cut. If you know what the sign is saying it is kind of funny as it is completely over the top. Omer must have been embarrassed when they saw it as I am sure it was not on earlier models.


    This gun is the Sporasub "One Air", but is really an Omer as Omer acquired Sporasub from Mares and launched this triple tube tank gun using most of the "Airbalete" innards. Unfortunately this heavier gun was still equipped with the feeble 11 mm inner barrel, so I don't know what they were thinking. Only the central tank held pressure, the two crescent shaped side tanks only served as buoyancy floats.


    Reminds me of my hunts in the seaweed jungle, sometimes it is like shooting fish in a barrel. The seaweed jungle is a shallow bay behind an outer reef that after storms fills up with sheets of busted off kelp, Neptune’s necklace and other fronded seaweeds that hang in curtains so that swimming through it is like going through an underwater haystack. Ambush predators hide in there to attack schools of bait fish and invertebrates while I hunt them. For this I use my Taimen as I can thread it through the vegetation as I slowly wind my way through the halls and rooms created by the weed and the slightly undulating bottom. Great fun and the only menace is the occasional ray that is as large as a small carpet in terms of swimming too close over the top of them.


    Unlike the old guns the new ones float after the shot, especially the mid-handles which before were always sinkers. I started out with a Nemrod "Comando", brand new as it had just replaced the "Goleta" which preceded it.