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Hi Vance,
Below is a quote from a 1970s paper Phil
presented on sub escape.
It agrees with what you are saying about differing
scenarios & " one
size doesn't fit all". I'd like to see a white
paper on K250 escape covering
best proceedure for different depths maybe from 100
to 250ft & for 1, 2 or 3
people. However I couldn't find a flow calculator
so I don't know how long
a K250 would take to flood to various internal
levels.
Alan
There are at least five major factors to consider in programming emergency procedures: A) Nature of the problem (e.g. is the SDC entrapped?) B) Depth of water (e.g. possible to use standby diver?) C) Umbilical condition (e.g. severed or intact?) D) Load line condition ( e.g. severed or intact?) E) SDC pressure condition (e.g. pressurized or unpressurized?) If one fixed case is assumed for question "A" - the SDC is entrapped - the critical examination of the possible combinations of other factors will require a detailed analysis of at least sixteen possible situations and the calculation of the most effective emergency procedures to use in each case. Some time ago, our firm undertook the task of reviewing SDC emergency procedures and we were, frankly, astonished at the number of possible situations that had simply not been considered previously. The procedures to cope were equally obscure and detailed searching of existing literature confirmed this general lack of specific consideration. We have since been continuously involved in compiling emergency procedures and running field tests on various safety devices, both SDC internal and external. The length of this discussion is not sufficient to describe, in detail, the total findings, but some highlights are presented for consideration. It should be heavily stressed that the described approaches should in no way be considered universal panacea's to the problems, but merely as potentially useful alternates to current practises.
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