[PUP] Fantale

Patrick Gerety alohaboat at yahoo.com
Wed Dec 24 14:44:15 EST 2008


----- Original Message ----
From: "Highlan875 at aol.com"
<Highlan875 at aol.com>
To: passagemaking-under-power at lists.samurai.com
Sent:
Wednesday, December 24, 2008 9:09:16 AM
Subject: Re: [PUP] Fantale

>We
researched that there is 3500 pounds of ballast in  the keel which keeps 
>the
motion gentle and gives a righting moment past 120  angle of heel. I'm not
>sure if this ballast was increased as the designer  suggested. 

Jim, I
believe that the righting moment of 120 deg. and 1700 mile range are,
unfortunately, sales hyperbole in my opinion.  The Fantail 50 is listed at
42,500 lbs disp.  3500 lbs ballast would be a ballast/displacement ratio of
8%.  My boat has a ballast/displcement ratio of 21%.  I don't have 120 deg.
stability.  Ballast/displacement ratio is NOT the absolute indicator of
stability, but only one of many factors to consider.  

The ballast was never
increased during the production of the Fantail 50.  The designer told me he
tought the ballast should have been increased several years after it went out
of production.

>We were also told that the Transworld 50' Fantale  Trawler
burns approx. 25 
>gallons a day with a range of about 1,700 miles. 

Well
let's run those numbers.  The Fantail 50 lists fuel capacity at 520 gallons. 
If you divide 520 by 25, you have 20.8 days till all empty.  20.8 days is
499.2 hours.  If you cover 1700 miles in 499.2 hours, then you have an average
speed of 3.4 knots!

Let's figure it another way.  If you divide 1700 by 520
fuel capacity you get 3.3 nautical mpg.  If you burn 25/24 or 1.04 gph,
then multiple 3.3 x 1.04 and again you come up with 3.4 knots!

These numbers
are theortically possible but 3.4 knots in a trawler is little more than
drifting with the currents.

My gut feeling is that you will get about a 1200
to 1400 mile range at 6 to 6.5 knots with no generator or stabilizers,
 burning about 2.5 to 3 gallons per hour, or 70 gal. per day.  Running
stabilizers and a generator could reduce these numbers.

>Again, we really
appreciate your feedback and now have  some serious 
>considerations to
resolve.

Jim, I am not trying to talk you out of this boat.  I just want you
to have realistic expectations before plunking your money down.  This may be
the perfect boat for you, but be informed of its capabilities and limitations.
Good fortune

Patrick
Willard 40PH
ALOHA
La Paz, MX


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