RE: [PSUBS-MAILIST] New project

[Ray Keefer <psubs2001@yahoo.com>]

Hi Antione,

George sent me a video of the UEM undergoing trials. I
can bring a copy to the convention.

Regards,
Ray

--- Jon Wallace <jon@psubs.org> wrote:

> Hello Antione,
> 
> George Kittredge is developing a K-250 human powered
> sub.  He's also tested
> a sail to provide additional speed while surfaced. 
> I can get you more info
> if you like.
> 
> Jon
> 
>   -----Original Message-----
>   From: owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org]On
> Behalf Of Antoine
> Delafargue
>   Sent: Tuesday, May 08, 2007 11:57 PM
>   To: personal_submersibles@psubs.org
>   Subject: [PSUBS-MAILIST] New project
> 
> 
>   Hello all,
> 
>   I have been following the mailing list for a
> while, and thinking about a
> sub project. It s time I share my thoughts with you,
> as the project becomes
> clearer for me (and my wife):
> 
>   OBJECTIVES
>   -short&shallow fun&exploration dives in possibly
> low visibility/strong
> current sea environment (eg Brittany, France)
>   -long distance shallow dives, human powered (eg
> cross the channel)
>   -exploration type deep dives wrecks, deep caves
> (eg fontaine de Vaucluse)
> 
>   I admit, it is a little bit ambitious.
>   So it has to be safe, small (my car is small),
> human powered (I like
> physical challenge), low drag shaped, simple and as
> cheap as possible
> (<20,000$), able to operate at 400m depth (such
> depth is well beyond limits
> of exploration diving, covers a significant part of
> the oceans, works fine
> in weight/displacement ratio and seems to be just
> below a step change in
> engineering complexity)
> 
>   FEATURES
>   -Dry 1 atm, 1 person
>   -human powered
>   -750L displacement
>   -low drag, K250 like shape, pressure hull 28" inch
> od
>   -400m max operating depth
>   -design and construction procedures following ABS
> rules
>   -a part is bolted to the other so a section can be
> added later on (a
> passenger for instance)
> 
>   STATUS
>   -browsed psub mail list archives (this is
> precious, thanks!), got books,
> K250 drawings
>   -made all mass&volume and ABS/ASME type hull
> design calculations on MS
> excel,
>   -made a rough mock up in cardboard to determine
> the optimum space I need
> to pedal inside.
>   -settled down on the hull dimensions and
> characteristics
>   -started to find manufacturers, off the shelf
> components
>   -started to define the equipment I need in my
> garage
>   -next step is to get this into a CAD program
> 
>   So until now I haven t spent a lot in this
> project, and moving forward
> scares me a bit.
>   There are a few things I am not sure of, for the
> first steps of
> construction:
>   -I am not a welder, so will call a pro for the
> critical welds. But I would
> like to weld all non critical ones.
>   Is it a reasonable objective? (like the
> stiffeners)
>   -For the critical welds, can I do the grinding
> myself, or this is
> something the pro would typically do?
>   -Do I need a protective paint on the hull
> components, if building the hull
> together takes time?
> 
>   Thanks for your comments,
>   I will try to go to the convention.
> 
>   Antoine
>   (in Calgary)
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 



************************************************************************
************************************************************************
************************************************************************
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
************************************************************************
************************************************************************
************************************************************************