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Alan,
With K boats, the difference in one or two
passenger is actually one more foot of hull length. There are a lot of
differences in a K-250 and K-350. I'm told there is a one person version
of the K-350 but I don't believe I ever saw one. Most of the costs
involved in a sub are incurred in just creating the sub and it's
systems. The cost of the added foot of length do involve things other then
one more rib and a band of steel, but it's really not much more. If I were
to guess, I'd say 10%, or maybe less.
Since I built my sub, I've made a few dives alone
but I can say, without a doubt, it's more fun with a passenger. Almost
every passenger I took with me preferred to lay on the deck below my seat with
their nose up to the forward viewport, so if you didn't want to, there isn't
even a need to add aft side viewing ports. Just have enough ballast to
compensate for the additional passenger weight and length enough for them to lay
on the deck.
It does reduce your bottom time by half if your not
scrubbing cabin air but I have never stayed down longer then a half hour before
toughing base with my surface person. Actual "sealed in the hull" is maybe
45 minutes for me.
Go for a sub where you can take a passenger.
You won't regret it.
Dan H.
----- Original Message -----
Sent: Friday, May 08, 2009 3:17 PM
Subject: [PSUBS-MAILIST] One/Two
person
Most of the personal submersibles
I?ve seen seem to be one person. Being able to take a friend seems like
a cool thing to be able to do. For a dry, one atmosphere sub, does
anyone know approximately how much more it is to add space for a
passenger? Is it 10%, 20% or 50% of the total cost?
Thanks.
Alan
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