Gradient factors

[Nikolas]

Hello,

After reading all the manual, I'm not sure about something : does the OSTC include the GF's in the decompression program ? And if yes, is it possible to set our own GF's, for example 30/80 or 20/75 for a trimix dive ?

Thanks for feedback;

Nikolas

[heinrichsweikamp]

At present (Firmware V1.10 beta) the OSTC does display the ongoing Gradient Factor (GF). It can be used for a "manual" Gradient Factor Method by the user. The GF is not used in the deco calculation for an automatic modification or generation of deep stops.

[Nikolas]

Hello,

As the OSTC is capable in managing trimix gases, it should be able to include deep stops or it will give wrong decompression calculations, or should we manage the deco stop "manually" when using helium ?

In the V1.10, wich GF is displayed ? GF low of the driving tissue for N2 + He ? Then it should varies continuously during the dive, to help the diver stay on the choosen GF low (20 for example). Is that correct ?

Thanks

Nikolas

[heinrichsweikamp]

Hello Nikolas,

We currently display the GF of the leading tissue, and yes, it varies during the deco phase. Deep stops will be included in one of the next versions. Currently a deep stop will increase your total deco time making the algorithm more conservative.

Regards,
Matthias

[Antoine]

Hello,

I am not sure to follow on the GF.
Does the deco is calculated following a 100% Buhlmann model and we have to make our own deep stop.
Or the GF our equivalent process inplemented are used by the frimware to calculate the deco.

Following the topic on v-planner, we have to wait a "geek" to program something?

Tx,

Antoine