Diver one of sixteen to die using high-tech gear

[DiverMole]

I use constant Po2 tables (DDplan) for pre-work and backups and then a VR3 on the actual dive which actually runs the deco in real time using your loop PPO2

For 60m at 20mins I would do the following

The Drogon Dive Planner [default] v2.15

The Drogon Dive Planner [v2:15]
========================================

Dive profile for default:
Step Depth SegT RunT Gas ppO2 END
===============================================================
1 0.0-> 60.0 4:00 4:00 Trimix 10/33 0.70 41
2 60.0-> 60.0 20:00 24:00 Trimix 19/30 1.30 36

Deepest effective stop: 42m
Buhlmann + Gradient Factor decompression schedule:
Step Depth SegT RunT %MV Gas ppO2 END
===============================================================
3 60.0-> 30.0 4:00 28:00 65.7 Trimix 32/25 1.30 12
4 30.0-> 27.0 1:00 29:00 67.3 Trimix 35/24 1.30 9
5 27.0-> 24.0 1:00 30:00 70.5 Trimix 38/23 1.30 7
6 24.0-> 21.0 1:00 31:00 73.9 Trimix 42/21 1.30 4
7 21.0-> 18.0 2:00 33:00 77.8 Trimix 46/20 1.30 2
8 18.0-> 15.0 2:00 35:00 79.5 Trimix 52/18 1.30 0
9 15.0-> 12.0 3:00 38:00 82.4 Trimix 59/15 1.30 0
10 12.0-> 9.0 5:00 43:00 84.8 Trimix 68/12 1.30 0
11 9.0-> 6.0 2:00 45:00 86.8 Trimix 81/ 7 1.30 0
12 6.0-> 5.0 16:00 61:00 87.1 Trimix 87/ 5 1.30 0
13 5.0-> 0.0 0:30 61:30 91.4
===============================================================
Dive time: 0:24:00 Gradient Factors were used:
Ascent & Deco time: 0:37:30 Low factor: 30%
======== High factor: 80%
Total run time: 1:01:30

Ascent rate: 10, Descent rate: 15 (m/min) Total CNS: 33% OTUs: 87

CC Setpoints used:
Depth Setpoint CNS
==========================
* 32.6 CC CNS Total: 33%


In the Nic Gotto case the Inquest is being held this week. Provisionally it looks like operator error. He had 8 hours use on his scrubber which is rated for 3 hours. There would be no warning from the computers for hypercapnia as its not related to PPO2. If this is true there is no one to blame but Nic himself

Real shame and my condolenses to those involved