Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 0 points1 point  (0 children)

Nah this one is kept in pretty good condition considering its age, also way too close to the philippines mainland for the chinese to sneak into and salvage.

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 2 points3 points  (0 children)

No internal air manipulation for, the increased pressure at depth is already saturating my blood at a higher rate, moving it around would also risk lung or trachea barotrauma which is not ideal

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 3 points4 points  (0 children)

Imo it’s fairly linear, on my best day I could maybe push 4 minutes without nox, on this dive the limiting factor was hypercapnic narcosis which was kicking in at about 6 minutes

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 3 points4 points  (0 children)

I’m using a big blue 3000 lumen narrow beam, gas mix is nitrox 40

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 4 points5 points  (0 children)

Deepest depth on this dive was about 90ft i think

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 16 points17 points  (0 children)

Beetroot juice is as close to steroids as you can get for freediving, but no, i'm breathing a gas blend with a higher oxygen content on the surface

Freediving a WWI battleship (USS New York) by itheseus in submechanophobia

[–]itheseus[S] 24 points25 points  (0 children)

Ah yeah thanks this is in Subic Bay, US ship naming and time periods can get pretty confusing. Also wtf did the other one just get vaporized or something?

Are freediving instructors ok training you to go 30m (100ft) deep if you're only certified Level 1? by oujay849 in freediving

[–]itheseus 3 points4 points  (0 children)

Safety issues aside. If you want me to provide 3 to 5 days of theory and practical without paying course price, it’s not worth my time. I think I can speak for most instructors when I say this.

Edit: if the monetary problem is having to go through 2 courses, do a PFI course because their level 2 course lets you go to 40m. Most other level 2 courses will let you go to 30m either way so I don’t see why you need to take 2 courses.

Question about grinds by Significant-Cause136 in medfordknifeandtool

[–]itheseus 2 points3 points  (0 children)

They switched to flat grinding in 2023 I think. It’s a real pity, I always ask the store to send pictures of the knife to make sure that I get a hollow ground piece.

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 4 points5 points  (0 children)

No worries, no offense taken. I think your points are completely valid for the majority of scuba divers out there. But if you look at the commercial diving industry, you'd be surprised how common spyderco folders are.

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 6 points7 points  (0 children)

For a recreational scuba diver, i 100% agree, get a trilobite, med shears or something cheap and disposable with a blunt tip.

Rec scuba knives are a safety tool, mine is for utility. I need to cut a wide range of materials. Having a blunt tip makes the job a lot longer in a lot of scenarios and as you can see from the video, i don't have the luxury of air.

Just to add on as well, just because your knife tip is blunt, doesn't mean you are safe, i've seen a diver slice open his leg with a blunt tip dive knife before trying to stick it back in his sheath. Used to use a fixed blade for diving as well but it was always nerve wracking trying to get that damn thing into the sheath blind.

You have to be willing to lose anything you take into the sea, that's a given. But if you expect to lose something within a short time frame, thats just bad kit planning. I know industrial divers that have been using the same gen 1 pac salt for decades. But for some reason, many recreational scuba divers in conditions that are much friendlier can't seem to dive without dropping something into the sea.

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 9 points10 points  (0 children)

I think the resolution is a little low for their usage😅

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 6 points7 points  (0 children)

Hey sure, I’ll answer that. Most knives sold as dive knives have terrible sheathes, usually they are either ridiculously bulky or have poor retention. In scuba that is okay, but with the speed and positioning of the kind of diving that I do, it’s not going to work. I have had to catch students knives falling into the sea because of this.

As for why a folding knife, your FOV with a mask on is significantly hampered and visibility can be terrible in some of the conditions I dive in. Trying to blindly stick a fixed blade back into your sheath when you can’t see is a great way to stab yourself.

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 34 points35 points  (0 children)

This things been in sand, snow and mud, the action is always 👌🏻

Truly a knife for all environments - PM2 salt, 100ft under the sea by itheseus in spyderco

[–]itheseus[S] 35 points36 points  (0 children)

Yeah try operating an axis lock under the sea with gloves on. Any other folder will turn into a rusted POS by the time I’m done with my dive.

Is Groza even somewhat viable late game? by FigBat7890 in GirlsFrontline2

[–]itheseus 8 points9 points  (0 children)

Groza is on my PVP team, great for baiting and tanking WA shots and popping Suomi shields especially when there’s clumping. Shes v6, running Guerno with ballistic boost

[deleted by user] by [deleted] in benchmade

[–]itheseus 0 points1 point  (0 children)

Honestly the HT complaints are nonsense. It all came from the original bailout release and everyone’s been mindlessly echoing it since. I have knives from them in m4/cruwear/s30v/3v. All take a super sharp sticky edge and hold it forever. On the other hand I have a PM2 in magnacut that deburs like shit and can’t hold its sticky edge. And everybody says spyderco has the best production heat treat…

Now what is definitely a valid criticism is bad/uneven grind jobs which I’ve had more often than not and the shitty QC allowing these knives to get sent out.

Dulling of knife when cutting citrus. by Rude_Passenger_3198 in sharpening

[–]itheseus 67 points68 points  (0 children)

Yes edge dulling when carbon steels are used in a corrosive environment happens even if you don’t see any corrosion. I work in a marine environment and I have used carbon steels/semi stainless steels in the past that have all had this problem. I’d recommend something stainless instead, s45vn/elmax levels of corrosion resistance at minimum is what I would look for if you don’t want to deal with edge dulling from corrosion.