[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [PSUBS-MAILIST] Comparing subs...



Peter,

....I like it!

The only organization in a position to entertain this is PSUBS.org. If willing and it were adopted, I would engrave it on my manufacturers plate.

Joe


From: "Peter Madsen" <peter@submarines.dk>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: [PSUBS-MAILIST] Comparing subs...
Date: Tue, 24 Jul 2007 23:42:14 +0200

Hi psubbers,


Sometimes people ask me how many psubs exist in the world and if they are like ours, bigger or smaller - if others dive as deep as we do - (answer: - yes others go much deeper ! )

I my opinion - what matters when answering questions is to give people a frank - simple explanation - just seeing a psub is quite a chock to most...so I dont go into safety factors in peacetime vs wartime ect...or any other nonsense.

On diving depth I tell two data - how deep we actually do dive, and how deep we have calculated that we expect catastrophic failure to occur. I typically add that most fun is at less than ten meter to sort of excuse the fact that our canoes are shallow diving ships - less than spacecrafts for the abyss...

At our convention in Copenhagen during 2006 some told people visiting us how deep they did indeed dive, and some how deep they had calculated that they could dive...giving a sort of misleading picture...

Sometimes in have been thinking of an A B C D and so on classification system for Psubs. In this - an "A" boat would be something like Sgt. Peppers - one person - electric only. A "B" boat would be like Nemo or K250 / K350 - a two seat with electric only propulsion. A "C" boat would be a small diesel-electric boat for two or more people like NR-1 ( Joe´s model ) or like Kraka. Finely a "D" class boat would be Euronaut, Platypus, or UC3 - big diesel boats with multi person crews and open sea capacity. Of cause - there is lots of fun in subdividing this into "DAIP" - for AIP propelled D boats or AH for human propelled A boats.

All of cause most for fun - and when somebody is telling you that he is building a ultra light submarine at just 400 kg with sixty cubic meters volume...and fuel cell propulsion - you can say that that´s fine - its a DAIP class - that has never been build before...

Its interesting to see that most - almost all psubs are B class - most likely this is the best for a private individual - and the very few A,C and D boats exist outside the mind or PC of its owner. In fact - the only operational D boat ever deployed was a Dutch gastank named "Spurdog" that with the aid of a bulk of ballast and some tanks could be dived at shallow water - with a number of people inside. It did not have any means of underwater propulsion to my knowledge. However - it furfills the difinition - with is 60 ton hull and dieselmotor is must have been seagoing...more or less...

Just some thoughts...

Have a nice day,

Peter





--
Jeg beskyttes af den gratis SPAMfighter til privatbrugere.
Den har indtil videre sparet mig for at få 19375 spam-mails.
Betalende brugere får ikke denne besked i deres e-mails.
Hent gratis SPAMfighter her: http://www.spamfighter.com/lda





************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************