Re: [PSUBS-MAILIST] Propane subs

["Vikking" <vikking@mindspring.com>]

Craig.

good evening.

1)you are designing a vessel capable to travel 200miles, but you do not give
depth ,(as far as i understand), importance, you do not plan to build to
have the capabilitie to dive deep ,Again as far as i understand),if you do
ignore this point.

what will happend when you are travelling close to shore, but not so close
say, 12 miles, the situation look like this, is dark is fooggy, the seas
just went from 6 to 14 ft, because a front is aproaching, you are on a
traffic area the draft of the container carriers are arround 12 ft, 20 if
the seas are moving. if they are a submersible will be pretty unconfortable
if sailing in less than 80 ft, so the question is, how the fuel you are
carryng will react if a vessel collide whith you?
a) you are on the surface
b) you are underwater

2) you are at the dock on the local marina ready to go for a day run, you
vent out to partyally submerge, as to check the systems, and because is
sunday and there is a lot of people arround , some idiot just trough a
cigarrete butt rigth by your vent, (you know murphy,dont you?)
a) what happend?

3) you have been going for hours , and the conditions are bad, you want to
lay down and sleep some, when you are sleepping, propane sweepts in and
since is heavier than air, sinks and cover your breathing space, murphy
again

How will you plan to go arround the regulations for safety on the waters,
when trasporting a flamable gas  or tring to get permission to enter a
harbour or a dock
Do you have any friends on the coast guard?
4)


5) propane tanks are heavy, do you work out?

There is cars that drive on propane and machinery too, i have use them, they
work, i think that your alternative is certainly posible,and i also think
that it can be built whith a degree of safety on it, people live by volcanos
too.
But having so many others types of fuels available, dont you think this is a
to some degree a bit impractical aproach to propulsion.

Gabriel