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THANK YOU FOR YOUR ATTENTION!

I hope you enjoy Power Catamaran List. I'll be glad to receive
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--Georgs

Georgs Kolesnikovs
Power Catamaran World
http://www.powercatamaranworld.com

This is the outline draft of a correspondence sent to a boat designer /
architect... I am moving towards designing and building a power cat (a
motorsailor if the architect has his way)....
Comments just now added to the rough draft are enclosed in < >
Self introduction at the end..

General info...
Couple, mid 60's with one small dog...
For doing the great loop, Bahamas, anchor off our place in Florida,
etc. - I don't see crossing the Atlantic, but stranger things have
happened..

Only a few family members as guests and only for a night or two, so a
master double berth in the aft hull for us two, and a forward double
berth on the bridge deck, with a fold out single in the saloon is
likely sufficient...

The absent berths can become a radio room/office, work shop, storage,
etc...

Concerning heads - one head as I'm the guy who has to clean em! And a
walk in shower separate from the commode...

Galley up in the saloon with maximum living on this level and minimum
stair climbing...

Hanging mesh ditty bags for light stuff storage... A minimum of
cabinetry and a maximum of bins/shelves storage area...

Energy independent of shore power - a house battery set and solar cells
on the saloon roof - with 12v appliances, LED / CCF reading lamps,
etc...
<This doesn't rule out a shore line powering an isolation
transformer/charger to put DC into the batteries while shorebound / on
the hard, etc.>
Small aux gen set - Honda/Yama 2KW whisper power?...
An inverter for those loads that just absolutely, positively, gotta
have 60 cycles...
<Maybe with good planning there will nothing on board that needs 60
cycles...>
A high efficiency DC generator/welding set, driven by the main engine,
for rapid charging the house batteries...

Diesel furnace heat... Dunno on the cook stove - propane versus diesel?

Air conditioning is a blue sky idea to be a small pump pulling sea
water through a drop hose, pushing the water through radiators with air
circulating fans blowing on them, and dumping the warm water back to
the sea...
<correspondence back from from the architect on this has him proposing a new and efficient DC air conditioner for those oppressive nights and mentioning he feels pumping seawater to have significant drawbacks>

Small fresh water tanks and a water maker - so the water stays fresh...
Large fuel tanks for both range and the ability to take advantage of
bargains... (Diesel gonna be $5 a gallon, soon!)
<All ready there, I hear, and going up even more>

A Single con station in the sallon /pilot-house with maybe a fold down
fly bridge station on the saloon top? Fold down to reduce windage when
not in use...

Minimal water draft to enhance cruising and anchorage choices...
Minimal air draft for doing the Great Loop - a folding fly bridge /
con-station...

I'm assuming that hulls in the mid forty foot range will work well...

On the method of build - I have noted the Kurt Hughes method of
cylinder molding plywood veneer in a female mold for it's speed and
economy... I wonder if one can adapt that methodology and while the
veneer hull remains in the mold, vacuum bag a foam/glass sandwich into
the inside of the hull in place of the stringers/formers leaving a
relatively smooth interior - except for the structural bulkheads,
etc... Or is the inner sandwich not worth the weight, time, and $$ ?
<This has not been discussed yet - Plywood/West-system is the most
economical method of builiding a hull... I'm not sure that adding
weight and cost in the form of a foam sandwich gains you anything -
other than flotation, which can be had other ways>>

Now, the engine (aye, there's the rub)...
I'm aiming for a 10 knot cruise speed at absolute-minimal fuel burn...
I suspect that diesel/gas outboards will not do the job, so inboards
are required(?) - though I detest the thought of thru-hulls below the
water line... I'm open to all lines of thought here...
<Under discussion is a single diesel engine mounted on the bridge deck with a retractable prop and a pair of outboard engines for maneuvering in port and for scooting across shallow water. This also eliminates below the water line openings to service the diesel engine>

Motor sailor? Actually, I'm an old rag bagger, but not thrilled with
the idea of tending to sails anymore...
<If there is a mast it must be a 'simple' one man job to fold it and a
one man job to erect it afterwards... And what is the price of the
rigging and sails and how many years of fuel would that money pay for?>

Oh, and the euro-look, sleek compound curve, sloping windows look nice,
but I don't see them as practical for the tropic sun... If lowering air
resistance is critical to fuel economy, then how about upright pilot
house windows with a ventilated, sloping, lexan/glass cover for
aerodynamics...
<Further discussion is going on... From my point of view the current
look in power cats is ugly...  I'm sorry, but I have been aboard the
Endeavour's, and the Cumberland's, etc., and from the inside they are
great, but to look at them across the harbor just gives me the
gripes... A ship wants to look, well, salty!  Look at the Diesel
Duck's... Now these look like ships, but they are monohulls (ugh)... It
doesn't matter to me whether it is one hull or two, I want to see a
gorgeous sheer, a graceful bow, and a seaworthy stern... A sugar scoop
stern that is going to take on tons of water every time a following
wave hits it, is not smart, at least to me... It doesn't matter how
well the stern cockpit drains, if it scoops up water it is going to be
driven downwards - even if momentarily - not good. And a fore deck that
has you standing on a downward sloping surface with no bulworks to
brace your thigh against may work for a flat out racer, but will not
entice me out there in a pitching seaway to set the anchor...>

INTRO:
Dennis C. O'Connor
Hemlock, Mich
Self employed (self unemployed according to my creditors)
Great Lakes sailor / boat owner in past years - Mostly Pearson's
Pilot and plane owner
Mechanic <sorta>
Electronics, industrial automation, plant engineering <in my wasted youth>
Ham radio - K8DO

Cheers  ...  denny

Mailblocks - A Better Way to Do Email
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Denny's hopes for getting cool dehumidified air from pumped sea water in the
summer in the Florida, the Keys, and the Bahamas is not good where our water
temperature climbs to 90 degrees by August.  If you are forced to be in a
marina during that time, some sort of compressor driven air conditioning is
necessary.
Tom Little
Kalani, Defever 49 RPH