Are the Super Wings too much?

[Dan Gibson]

It's there. You just have to read between the lines. Try looking for Boyle's law.

I looked back through my PADI open water text and nowhere did I read anything about displacement vs. buoyancy. Good luck.

 

[bwerb]

Dude...you don't even have to look through the text...remember in class when you were sitting there thinking...wait a minute, I weigh 170lbs, plus this tank and stuff weighs at least forty pounds...I'm up to 210 lbs and now you want me to throw on a weight belt of another 16 lbs so I can sink??

 

[JeffG]

Dude...you don't even have to look through the text...remember in class when you were sitting there thinking...wait a minute, I weigh 170lbs, plus this tank and stuff weighs at least forty pounds...I'm up to 210 lbs and now you want me to throw on a weight belt of another 16 lbs so I can sink??

Naw...You should of had a 210 lb wing

 

[Dan Gibson]

That doesn't take place in most of the classes anymore This is why they need someone to teach the class. The home schooling just isn't cutting it.

Dude...you don't even have to look through the text...remember in class when you were sitting there thinking...wait a minute, I weigh 170lbs, plus this tank and stuff weighs at least forty pounds...I'm up to 210 lbs and now you want me to throw on a weight belt of another 16 lbs so I can sink??

 

[msandler]

Considering that a Luxfer 80 starts 2# negative and ends 4# positive with air, it will drag at the beginning of the dive. Now replace it with helium and it is nearly neutral at the start of the dive. That is a good thing if you need to carry a lot of bottles. Nice try, but you are not correct.

The rest of your argument shows nothing but ignorance.

Dan, Why would I want to replace my air with helium? I need to breath from these tanks. This is almost as amuzing as this comment you made earlier in the thread.

SS plates will make you so top heavy that you will be fighting your trim.

Hilarious!

and it just keeps coming...

It's there. You just have to read between the lines. Try looking for Boyle's law.

Boyle's law examines Ideal Gases NOT the mass of a displaced volume of liquid. The property referred to is "Density". By the way, drag does not change if the surface area doesn't change regardless of the mass. Personally I carry nitrox stages the same way I carry trimix stages.

And you are criticising others? Stop it please your killing me :laughing:

 

[JeffG]

Dan, Why would I want to replace my air with helium? I need to breath from these tanks. This is almost as amuzing as this comment you made earlier in the thread.


Hilarious!

and it just keeps coming...
<snip>And you are criticising others? Stop it please your killing me :laughing:

OMG....open mouth...insert foot

 

[msandler]

OMG....open mouth...insert foot

sorry, guess I should explain that the example given by Dan is not tangible in actual diving. first a type helium mix would contain about 30% Helium (the weight difference in the stage would be negligible). His calculations are invalid for the variety of equipment being used (different tanks, different regs.), or even the equipment he is specifically referencing. You get the picture? Also, typically helium would be "back gas" Dan is only mentioning Al80's because that's what he got out of the DIR philosophy. He has missed the boat on the very sound principles of "DIR". For example, there are plenty of dives that call for other size tanks - deep deco dives where a travel gas is useful to minimize deco times - you would probably only need 20 - 30 cuft of a specific mix for a given portion of the dive, so why bring 80?

Your pal's lack of real diving experience with the systems, situations and mixtures he is referring to in his posts is blatantly obvious. I hope he doesn't misslead to many people.

 

[bwerb]

Hmm...a Trimix instructor questioning that the addition of helium to tanks in lieu of air...huh?

Sorry...edit...

Seems your answered my confusion while I was typing.

 

[JeffG]

sorry, guess I should explain that the example given by Dan is not tangible in actual diving. first a type helium mix would contain about 30% Helium (the weight difference in the stage would be negligible). His calculations are invalid for the variety of equipment being used (different tanks, different regs.), or even the equipment he is specifically referencing. You get the picture? Also, typically helium would be "back gas" Dan is only mentioning Al80's because that's what he got out of the DIR philosophy. He has missed the boat on the very sound principles of "DIR". For example, there are plenty of dives that call for other size tanks - deep deco dives where a travel gas is useful to minimize deco times - you would probably only need 20 - 30 cuft of a specific mix for a given portion of the dive, so why bring 80?

Your pal's lack of real diving experience with the systems, situations and mixtures he is referring to in his posts is blatantly obvious. I hope he doesn't misslead to many people.

That makes more sense. (as with Bwerb the Air vs Helium trade seemed ...odd.) But others are using Helium in their deco gas. (I doubt its across the board...but a few). Also, I've seen dives done with AL80's stages..not quite the deco Idea, but they are dragging them around.

 

[novadiver]

Dan, Why would I want to replace my air with helium? I need to breath from these tanks. This is almost as amuzing as this comment you made earlier in the thread.


Hilarious!

and it just keeps coming...



Boyle's law examines Ideal Gases NOT the mass of a displaced volume of liquid. The property referred to is "Density". By the way, drag does not change if the surface area doesn't change regardless of the mass. Personally I carry nitrox stages the same way I carry trimix stages.

And you are criticising others? Stop it please your killing me :laughing:

msandler, It's good to see someone with brains show up, every time they ( Dan G ,Micdiver,) show up they start this compitition to see how far they can peg the BS meter. I sometimes wounder how these people made it to adulthood . Could you picture being one of their students or dive buddies?
Now I know what the knife is for. LOL