That's a long list.
The only real *planning* I make in terms of contingency are gas/deco needs to account for
- loss of deco gas
- deeper than expected (+5m)
- longer than expected (+5, +10 min)
The rest of what you are calling contingencies I would qualify as simply applying your training (or common sense).
R..
The only real *planning* I make in terms of contingency are gas/deco needs to account for
- loss of deco gas
- deeper than expected (+5m)
- longer than expected (+5, +10 min)
The rest of what you are calling contingencies I would qualify as simply applying your training (or common sense).
R..
* regulator free-flow => reach for the tank valve, shutdown the post, then switch to backup
* bubbles in the back => reach for the manifold valve, shutdown the manifold, then alternate shutting down tank valves until bubbles stop
* lost mask => deploy backup mask from right drysuit pocket
* low on bottom gas => access buddy's bottom gas, abort the dive
* lost deco gas => access buddy's deco gas
* lost buddy => search for 1 min., then abort the dive
* low on bottom or lost deco gas + lost buddy => ? (presumably switch to a more aggressive deco profile and pray)
* exceeded depth or time => follow prepared deco schedule for next larger depth or longer time
* exceeded depth/time + no prepared deco plan => follow ratio deco
* wing inflator malfunction => pull quick disconnect, hit deflation button, raise the corrugated hose to vent, fan out, restore buoyancy using drysuit
* unable to locate ascent line => deploy SMB from depth, if possible attach another reel or up-line to the bottom, slowly reel up
* entanglement => stop all movement, deploy cutting device, bang on the tank to get buddy's attention
* entanglement + cannot cut oneself out => doff harness, try again (?)
* light failure => deploy backup light from shoulder D-ring bungeed onto the chest strap
* silt-out in open water => ascend
* silt-out in overhead => ? (presumably try to locate the line)
What other contingencies do you plan for, and what will you do?