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How thick are the walls of your carbon tube? I've seen some numbers of carbon tubes (not specifically speargun) around 500kg strength for carbon so it should be strong enough for lots of power.Definitely carbon for me.
Unlike yours, mine have 25mm barrels - OmerXXV - so slimmer than most modern aluminium barrels. Fast tracking and low mass, low inertia.
The larger diameter of yours might be for greater stiffness when using multiple rubbers and/or to allow the use of thinner walls (but your walls sound fairly thick). But they probably just wanted to get the same internal diameter, so they could use the same handle/trigger mech. My Omers use a specially designed narrow handle/mech the T10, rather than Omer's well regarded T20. Not sure what they did for the Cayman carbon - I believe that also used a 25mm barrel; perhaps they made a special Cayman trigger mech/handle to match? Not sure what diameter the new Invictus Carbon model uses.
I don't know but I think quite thick. It is tougher and stiffer than I expected. I think most spearguns should have carbon barrels these days - and it should not be expensive.How thick are the walls of your carbon tube? I've seen some numbers of carbon tubes (not specifically speargun) around 500kg strength for carbon so it should be strong enough for lots of power.
I see it has big tensile strength, torsion strength and stiffness but im not sure about crushing/impact on the tube. About the expensiveness I also think it's overpriced, you can get a round tube for like 40 eu, while a speargun made tube is 3 times as much if you want your tube with a guide rail.I don't know but I think quite thick. It is tougher and stiffer than I expected. I think most spearguns should have carbon barrels these days - and it should not be expensive.
I gather there have been breakthroughs in the understanding of carbon fibre in the last few years. Some new techniques and products to take greater advantage of its strength.
What are the thickness of walls on these strong carbon barrels? And would you say it has as good strength when it comes to crushing/impact right on the barrel?I don't know anything about the specific guns in question, but I used Wong hybrids with carbon barrels for about 20 years and I can't imagine using aluminum. Starting back in the early 1960s I had a lot of guns with aluminum barrels. Aluminum corrodes. Aluminum is easier to bend. The only thing thing aluminum has going for it is the its cheaper.
Interesting. I'm still haunted by those videos of bicycle tracks racer's front wheels disintegrating at high speed, but I guess carbon came a long way since then. I see it's now also being used as structural material in some airliners?But it was very crush resistant, much more so than aluminum. I've seen weight belts dropped on the guns.
And if it did shatter it would be replaced under warranty if it was a Wong gun, but course that’s exceptional. No one else has a warranty like Daryl. Before he started using carbon fiber barrels in his hybrid guns he used titanium. After about 10 years my titanium barrel slid out of wood butt so he replaced it with carbon fiber. He said it seemed to happening in Southern California and he thought it must be because the cold water caused the titanium to expand and contract. But whatever the cause he just replaced them under warranty. When I texted him he was out fishing but he said he’s send me a photo of the carbon fiber tubing next to titanium tonight.So with carbon you won't ever doubt if the barrel is bent, as it would be shatterred? That actually does sound like an advantage.
Just checked MVD's site, as that's the brand I got here. They did make their invert roller with a carbon barrel at some point, but it seems to be removed from their shop, just alu now.
Im a bit confused, those numbers are very small for tubes? Normally tubes around 1.2 inches 28mm.Daryl sent me this photo of his carbon fiber tube compared to his titanium tube. He hasn't offered titanium for years so this must be a relic from when he was switching over. I'm not sure if wall thickness is a meaningful comparison since they are different materials but at least it shows that the carbon fiber looks pretty thick.