change GFs for Bailout

[sualbert]

When diving very conservative GFs in normal Dives, I was wondering wether it would be a good idea to have less conservative GFs vor Baulout.

[Steve]

normally you should use the same conservatisme for bail/out if not more conservatisme.

reason for this is when you actually are going in bail/out fase you might be nervous wich can lead to a CO2 build-up wich can lead to a deco.

I always use the same conservatisme for bail/out planning.

[David Boileau]

We could expend this case to a more general :

Would it be possible to have a second set of GF, less conservative than the chosen values in CF32/CF33, for critical situations (bailout, OC gas problem, whatever) - the idea is to switch underwater to this set when you dramatically need to go as soon as possible to the surface.

For example, you dive trimix OC with GF30/80. When underwater you get stuck in a wreck and you exceed your bottom time. You begin your ascent but YOU KNOW that you'll be too short with you decogases. No other gases (buddy, cylinders on the shotline) are available. Your problem then is to find a "not too bad" deco curve for getting to the surface with no too much problems. Conservatism is not your problem anymore. If, a the beginning of the ascent, you could choose a more agressive set of GF (pre-chosen in surface), let's say something like 50/100 (very agressive, I know... Better be DCS than dead...), it would be better than following the deco and getting stuck at the 9 or 12m stop with no more gas...

The problem with such a feature it's that some people may be tempted to plan their dive using this feature (typically for CCR divers in bailout situations, because bailout capacity is often the limiting factor in their dives), which is absolutely not my intention.

David

[wrobell]

David Boileau Wrote:
-------------------------------------------------------
> We could expend this case to a more general :

well, you can always display your current GF value
and keep it at appropriate level.

[...]

[Steve]

I understand your question

what I always do is use 2 or even 3 kinds of bailout (+0/+3), (+3/+3) and (+5/+5)
and some "lost gas" plannings.
You always have to make sure you have enough gas. If not, change your plan or use bigger bottles.

In case of getting stuck in a wreck longer then 5min fe follow your OSTC. blow up your yellow buoy, use bottle of buddy in case he has more gas then you.
If no possibility to get spare gas, empty your bottles (make some deep stops, skip some in between if you feel you are running out of gas and empty your bottle at 6-3m) and go to decompression center.

these are "what-if, what-if and what-if" situations wich only occur when your taking certain risks.

[sailor]

I like the idea and intention of Albert.

Reiner

[Peter_O]

sualbert Wrote:
-------------------------------------------------------
> When diving very conservative GFs in normal Dives,
> I was wondering wether it would be a good idea to
> have less conservative GFs vor Baulout.

Yes, I think it's a very good idea to have the option to switch to
a set of less conservative GF factors for bail-out.

/Peter

[Roy]

I agree with wrobell
Keep track of your current GF value and you can make any bailout you like.

[heinrichsweikamp]

Hello,

A "fast bailout option" would be possible, of course. But, I'm not sure if this is a good idea at all. Reducing the safety margin because you already have a problem (Like a gas lost)?

The absolute GF value is displayed during dive mode. You can ignore the stops displayed and decompress with a high GF (like 95%) manually.

Regards,
Matthias