* Roger Long wrote, On 6/6/2007 5:16 PM:
....
Those of us living the simple life seldom run our
engines except to move the boat.


IIRC, your cruise last year was only a week ... hardly enough time for
a block of ice to melt in Maine. ;-}

And I'm guessing you didn't exactly live the "simple life" on the
Titanic venture, even if trip to the bottom was a bit spartan.

On Jun 6, 5:05 am, Wayne.B wrote:
....
My advice? Buy a boat with more fuel capacity. 20 gallons is totally
inadequate for extended cruising.

I hate that advise. People can and do cruise extensively without
engines at all and lots of folks cruise with very limited fuel. The
amount of fuel you need for extended cruising on a sail boat is
somewhat dependent on the boat's systems and largely dependent on the
skipper's attitude. 20 gallons is totally adequate for some extended
cruisers...

On my boat I can carry 50 gallons of fuel (but never have) about half
in cans and half in two fixed tanks. I stow my cans in lockers since
I hate having loose stuff on the deck. You may well find that you
need some cans to transport fuel to the boat in many parts of the
world. Cans are easy to inspect and clean and you will cycle through
the fuel in your fixed tanks more regularly if you use cans for your
excess... If you go with cans it is worth thinking about how you will
do transfers in bad weather.

-- Tom.

Wayne.B wrote:
On Wed, 06 Jun 2007 16:24:31 GMT, Lew Hodgett
wrote:


What is the max fuel consumption rate of that 3 cyl engine, about 1.5
quarts/hour maybe?

A 20 gal tank would provide over 50 hours of operation ((20*4)/1.5 = 53+).


A small 3 cyl diesel will typically burn around 3 qts/hr (.75 gal).
Range is only part of the issue. Most cruisers run the engine 2 or 3
hours per day for battery charging, hot water, etc.

A typical small normally aspirated marine diesel will burn about 1/3 of
a litre per kilowatt hour (1/4 litre per HP hour if you prefer mixed
units). Thats near enough 1/2 a pint per HP hour. Just multiply by
your engine's max continuous output rating to get an idea of the max
fuel consumption. Better still, get the maufacturer's spec sheet and
look up the consumption for your cruising RPM.

The numbers I give above tie in pretty closely with observed results for
our 26 footer with a Yanmar 1GM10, where we normally motor at around 3/4
throttle and the rated continuous output power is 8 HP. The tank is 18
Litres when filled to the brim and we used about 20 litres (topping it
off from cans part way) on a 100 M, 15 hour passage from the Thames to
Calais a fortnight ago. Any discrepancy can easily be accounted for by
time spent dodging round a large fishing net (thankfully lit) at
reduced speed in the middle of the TSS and what assistance I was able to
get out of the sails in the light airs we had.

Incidentally, for the OP, we usually carry enough gallon cans in the
stern locker to refill the tank twice. So thats just over 4 1/2 US
gallons in the tank and 9 gallons reserve.

That tank will do OK for a day tank if we go off blue water but as the
filler is on the side deck and we have a low freeboard, I'll need to
fit a larger main tank with a transfer pump or at least some way of
refuelling at sea *without* taking the cap off the filler. I also need
to look at fuel polishing (help keep the tank clean over the winter +
its better to find you have been sold contaminated fuel *before* you
leave port).

Wayne, your 3 quarts per hour figure seems a little low or do you
usually cruise at half throttle? (I'm guessing your engine is around 25
HP as there is little point in haveing a 3 cylender diesel rated at
under 20 HP)

--
Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED)
ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk
[at]=@, [dash]=- & [dot]=. *Warning* HTML & 32K emails -- NUL:
'Stingo' Albacore #1554 - 15' Early 60's, Uffa Fox designed,
All varnished hot moulded wooden racing dinghy.

A fellow suggested to me a technique that I have found works well. I keep on
board a piece of vinyl tubing of about 1 1/4 " ID, and about 5 or 6 ft long.
Set the jug on top of tank or filler neck, with the hose down in the jug and
stuck in the filler neck. Seal around the hose with a rag where it goes in
the jug, and blow into a small gap in this rag "seal".As long as there is
not a big airspace in the jug, i.e., the jug is nearly full, It is not hard
to force the fuel up the hose and down into the tank, starting a siphon.
Very quick and tidy. I stick tapered plugs into the end of the hose to keep
the inside clean, and wipe off the outside before use.
I have a similar hose for transferring water.

wrote in message
ups.com...
On Jun 6, 5:05 am, Wayne.B wrote:
...
My advice? Buy a boat with more fuel capacity. 20 gallons is totally
inadequate for extended cruising.

I hate that advise. People can and do cruise extensively without
engines at all and lots of folks cruise with very limited fuel. The
amount of fuel you need for extended cruising on a sail boat is
somewhat dependent on the boat's systems and largely dependent on the
skipper's attitude. 20 gallons is totally adequate for some extended
cruisers...

On my boat I can carry 50 gallons of fuel (but never have) about half
in cans and half in two fixed tanks. I stow my cans in lockers since
I hate having loose stuff on the deck. You may well find that you
need some cans to transport fuel to the boat in many parts of the
world. Cans are easy to inspect and clean and you will cycle through
the fuel in your fixed tanks more regularly if you use cans for your
excess... If you go with cans it is worth thinking about how you will
do transfers in bad weather.

-- Tom.

On Thu, 07 Jun 2007 01:05:04 +0100, Ian Malcolm
wrote:

Wayne, your 3 quarts per hour figure seems a little low or do you
usually cruise at half throttle? (I'm guessing your engine is around 25
HP as there is little point in haveing a 3 cylender diesel rated at
under 20 HP)

My engine is actually a 27 hp 4 cyl and drives my primary generator.
At half load it burns about 1 gal/hr. Extrapolating downward 25% or
so is where my guesstimate came from. The traditional rule of thumb
for diesels is 1 gph for every 17 hp actually developed.

On Wed, 6 Jun 2007 17:16:39 -0400, "Roger Long"
wrote:

You can figure .054 to .06 gallons per horsepower hour depending on things
like how much electric power is being drawn and the effeciency of the
specific engine. Those of us living the simple life seldom run our engines
except to move the boat.

My definition of serious cruising is 3 to 6 weeks in the boondocks
where fuel is either totally unavailavle, of dubious quality, and/or
prohibitively expensive.

Most of the coastal north east has a fuel dock every 20 miles or so
and 20 gallons would be plenty as long as you go into town once a
week.

On Jun 6, 4:11 pm, "Garland Gray II" wrote:
A fellow suggested to me a technique that I have found works well. I keep on
board a piece of vinyl tubing of about 1 1/4 " ID,...

Sounds way better than the nasty store bought siphon that I use. I
think I'll try it. Thanks!

-- Tom.

It is important that there not be a whole lot of air in the jug when you
start if the tube is as large as I use. It takes a good big puff...
My hose is reinforced with the braiding, but I'm not sure it makes any
difference other than holding its shape perhaps.

wrote in message
oups.com...
On Jun 6, 4:11 pm, "Garland Gray II" wrote:
A fellow suggested to me a technique that I have found works well. I keep
on
board a piece of vinyl tubing of about 1 1/4 " ID,...

Sounds way better than the nasty store bought siphon that I use. I
think I'll try it. Thanks!

-- Tom.

Garland Gray II wrote:

My hose is reinforced with the braiding, but I'm not sure it makes any
difference other than holding its shape perhaps.

Bragging or complaining?G

Lew

If I am to use plastic fuel can which on is preferred?
So far I have look at the Scepter
http://www.defender.com/product.jsp?path=-1|311|302335|7364&id=181410
and the Wedco sold at Wal-Mart.

wrote in message
...

http://www.worldwidewiley.com/2boat.shtml

Look at the "Jerry Cans" article. I don't particularly endorse
carrying fuel on deck, but lots of folks do it. Several companies
also make flexible tanks rated for fuel, I believe. I have a length
of pvc pipe threaded to match the cap on my fuel filler deck fitting.
Remove the cap, thread in the pipe, then pour in the fuel from the
jerrycan at a comfortable height without spilling. Also, spray or
solid water that comes on deck at the wrong time won't find its way
into the tank.

Wiley



On Wed, 6 Jun 2007 11:42:36 -0300, wrote:

Most new sailboat today carry about 20 USGals of diesel fuel on board.
Some
even have a 40 - 50 gals tanks on board. The boat I planning on having
has
a three cylinders engine and only a 20 gals tank. At time, when a storm
or
hurricane is behind you may have to make a mad dash in light wind
condition
to reach a safe heaven. Then 20 gals of fuel may not be enough to reach
the
safe heaven. What would be the best way to carry extra fuel?