Jay, A
very worthy topic of discussion. My input as follows per an earlier off list
response.
1) I
had not considered until I read this, the potential implications of a
passenger in "full blown" panic. I see this often enough in my work
in the ICU, to recognize just how bad this could be enclosed in a metal can
with someone like that.
In
retrospect, although perhaps rare, I see how this has the real potential
to incapacitate the pilot and render the vehicle uncontrollable. The recent
astronaut incident illustrates human frailty, and the necessity
of contingency planning.
Suggested
remedies.
Pre screen
criteria to possibly include "dry runs" on land, with darkened ports,
pilot to "judge" response.
Short
duration "initial step down" dives, to "qualify" observers
for long duration deep dives.
Pilot
familiarity with stages of panic symptomatolagy.
Any doubts,
normal surface procedure
Response
to worse case scenario.
Initiate
emergent surfacing procedure
Pilot to don
or (secure) independent air supply
Assume protective
posture (pilot), retreat to fore / aft end away from hatch
Call for
assistance if able
Attempt
"talk down"
Call for
assistance being the only reasonable response in my view. Any attempts at
restraint increase the potential for injury.
As for
overhead environments, the WHOI Alvin manual is short and sweet on the subject.
Basically a form of "No way Jose"! :)
Jay, What is
an "Outfall" pipe? a sewer line? I am assuming this is big, nasty,
and something likely to be encountered in the littoral environment.
This
convention is shaping up quite nicely, I do wish I could attend.
Joe
From: "Jay
K. Jeffries" <bottomgun@mindspring.com>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: [PSUBS-MAILIST] Contingency Planning Presentation
Date: Sat, 17 Mar 2007 12:31:16 -0400
>This didn't make it through the first time, here it is reformatted.
>
>I am working on my presentations for this summer’s conference and
would like
>to ask the aid of the list in attempting to develop a comprehensive list of
>potential contingencies that might arise during the operation of a
PSUB.
>Please see the attached outline below of my first stab. Identifying
all of
>the potential casualties is the first step of five in developing a
>contingency plan. Your assistance in this matter would be
appreciated.
>Thanks!
>R/Jay
>
>I. PSUB Casualties
> a. Fire
> i. Full out
> ii. Smoldering
> iii. Battery
> 1. Fire
> 2. Explosion
> b. Flooding
> i. Rapid
> 1. View port
rupture
> 2. Catastrophic
hull failure
> 3. Burst pipe
> 4. Through main
hatch surfaced
> ii. Slow
> 1. View port
fracture
> 2. Leaking
fixture/seal
> c. ± Excessive Depth Excursion
> i. High speed down angle
> ii. Rated depth/crush depth
> iii. Surfacing collision
> iv. Emergency MBT blow
> v. Loss of drop weight
> d. Loss of Power
> i. Main power
> ii. Emergency power
> e. Loss of Maneuverability
> i. Entanglement
> ii. Locked steering
> iii. Overhead environment
> 1. Ship
> 2. Cave
> 3. Outfall pipe
> iv. Strong current
> v. Shorted motor
> vi. Run away motor
> f. Loss of Buoyancy
> i. Loss of MBT air
> ii. Loss of MBT integrity
> 1. Partial loss
of a tank
> 2. Full loss of
a tank
> 3. Loss of all
MBTs
> g. Life Support Issues
> i. Scrubber failure
> 1. Loss of
power
> 2. Damp
scrubber agent
> 3. Caustic
cocktail
> ii. Contaminated atmosphere
> 1. Carbon
monoxide
> 2. Chlorine gas
> 3. High partial
pressure oxygen
> 4. Various VOCs
> a.
Paint
> b.
Cleaning agents
> iii. HP air/oxygen release
> iv. Oxygen regulator failure
> v. Barotrauma
> 1. During
pressurization
> 2. Barotrauma
during emergency ascent
> vi. Thermal stress
> 1. Hypothermia
> 2. Hyperthermia
> vii. Decompression Illness
> viii. Aspiration/inhalation
> ix. Traumatic injuries
> h. Launch/Recovery Failure
> i. Heavy seas
> ii. Fouled lifting equipment
> iii. Catastrophic lifting equipment
failure
> iv. Fouled hatch
> v. Recovery vessel collision
> 1. Side
>2. Propeller(s)
> i. Loss of Surface Support
> ii. Sudden storm on surface
> iii. Lost
> 1. Sub
> 2. Surface
support
> iv. Communications
> 1. UQC
> 2. VHF radio
> . Surface support premature departure
> j. Miscellaneous Casualties
> i. Shorted instrumentation
> 1. Navigation
> 2. Lighting
> ii. Grounding
> 1. Reef
> 2. Shallows
> iii. Claustrophobic passenger
> 1. Mild
> 2. Maniac
> k. Compounded Casualty
> i. One of the above casualties results
in one or more additional
>casualties
> ii. Severe flooding =battery short,
chlorine gas, and life support
>systems failure
>
>
>
>
>
>
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