Re: [PSUBS-MAILIST] Good source for ready made sub thrusters

[Robert Ossian <rob_neptune@yahoo.com>]

No, I'm thinking that would just cause wiring
headaches when connecting the units to my sub's
power/control systems.  I'm thinking of asking
farallon what it would cost to produce a unit with the
housing shortened to the minimum size of the thruster
itself (no batteries) and then connect it to my subs
power systems.  
 
My sub's design plan all along has been to use some
sort of externally mounted sub thrusters that could be
removed easily for servicing/maintenance/etc.  Plus,
since I plan to build a couple of designs of subs (an
ambient and a 1 atm), the interchangeable nature of
this type of thruster again helps to cut down on the
cost of production by letting me "share" thrusters. 
 
I'm not necessarily married to farallon as a source,
but have to admit I like the idea of a reliable (US
Navy certified) source for thrusters that are designed
for use at greater than average depth (most of the
scooters I was researching online are only designed
for a max depth of 100-200 feet).  Up till now I have
been looking at modifying a Minkota (like a lot of
other PSUBbers have done), but this gives me a
standardized design, easy access to spare parts, and a
guarrantee. 

--- Paul Kreemer <paulkreemer@gmail.com> wrote:

> Robert, would you use the built-in scooter batteries
> and so maintain the
> original weight and balance?  And just run the
> control wiring out of the
> DPV?
> 
> Paul
> 
> On 1/18/06, Robert Ossian <rob_neptune@yahoo.com>
> wrote:
> >
> > In the process of looking for a source of sub
> > thrusters I have come across a company called
> > farallonusa (www.farallonusa.com) that, among
> other
> > things, produces DPV's for SCUBA use.  The nifty
> thing
> > about these is that the standard units are
> > rated/guarranteed to a depth of 400 feet, without
> > needing any modifications/reinforcements to their
> 'out
> > of the box' design.
> >
> > After talking with them I found out that they also
> > commonly produce the same units for use as
> submersible
> > thrusters by simply removing the pistol grip
> > controllers and feeding the control wires out of
> the
> > unit for the sub builder to incorporate into their
> > control systems as they see fit.
> >
> > I am still several months away from my boat's
> > construction, but I thought some of y'all (who are
> > further along) may be able to use this info
> sooner.
> > If you do use it, please let him know that you are
> > associated with PSUBS so that they continue with
> this
> > "customized" product line.
> >
> > ---------------------------
> >
> > Copy of my last email from www.farallonusa.com:
> >
> > Thank you for your interest in our product. 
> Farallon
> > has been building under water propulsion vehicles
> for
> > commercial and military applications for over 35
> > years.  We currently have the only commercially
> > available DPV approved for US Navy use.
> >
> > Your request seems to be an easy one to fulfill. 
> We
> > already have other DPV's that use external power
> > sources and control signals so feeding the wires
> out
> > of the aft section of the Arrrow scooter would not
> be
> > hard.
> >
> > If your interested, please let me know and I can
> > prepare a quote (I will need to know how many you
> > would like).
> >
> > Regards,
> > Phil Poirier P. Eng
> > FarallonUSA Inc.
> > 5609 Unit-B Power Road
> > Ottawa, Ontario
> > K1G 3N4
> > (613) 822-1876
> > (613) 822-3431
> > www.farallonusa.com
> >
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