PDQ Performance
Hello powercat aficionados,
Being an engineer, and prompted by a recent discussion on the PDQ Forum, I
decided to compile two years of Sno' Dog cruising data and put it into tabular
and graphical form. The data is now posted on our website at:
www.snodoglog.com/Performance.html
It shows mileage ranging from 3.8 n mi/gal (4.4 stat mi/gal) at 7 knots down
to 2.4 n mi/gal (2.8 stat mi/gal) at 14.5 knots (16.7 mph). Many other boats
can achieve similar mileage at the lower speeds, but there's no other
34-footer (that I know of) that can touch our high end numbers. (Even the little
Camano 31' burns 9 gal/hr at 15 kts for a mileage well below 2).
I also posted some comments about running on one engine to save fuel. It
appears that, if you go slow enough, it might actually be possible - even on a
boat like ours without featherable props. But you'd have to cruise below 6.5
kts. In exchange, you might get something over 5 miles per gallon.
Happy - and economical - summer cruising,
Henry
www.snodoglog.com
Gas prices getting you down? Search AOL Autos for
fuel-efficient used cars.
(http://autos.aol.com/used?ncid=aolaut00050000000007)
Good morning
Our Highland 35 does as well .Please check the stats on our web site
:www.willmarusa.com
We have been cruising with Highland 35 ( client's baot) from Florida to
the Carribeans and back a few times and I have been very impress by the
sea kindness of the boat ( I am biased as I am the US importer but I
spend a lot of time on the boats)
We are cruising at slow speed of 8 to 10 and the boat can top 17 and a
half knots with twin Volvo 75HP
Best regards
Philippe J Guillemin
WILLMAR USA
Willmar USA Inc.
850 NE 3rd Street
Suite 207
Dania Beach
FL 33004 USA
Tel: 954 713 01 13
Cell: 954 609 9345
Fax: 954 252 4304
-----Original Message-----
From: hclews@aol.com [mailto:hclews@aol.com]
Sent: Monday, July 07, 2008 6:41 PM
To: power-catamaran@lists.samurai.com
Subject: [PCW] PDQ Performance
Hello powercat aficionados,
Being an engineer, and prompted by a recent discussion on the PDQ Forum,
I decided to compile two years of Sno' Dog cruising data and put it into
tabular
and graphical form. The data is now posted on our website at:
www.snodoglog.com/Performance.html
It shows mileage ranging from 3.8 n mi/gal (4.4 stat mi/gal) at 7 knots
down
to 2.4 n mi/gal (2.8 stat mi/gal) at 14.5 knots (16.7 mph). Many other
boats
can achieve similar mileage at the lower speeds, but there's no other
34-footer (that I know of) that can touch our high end numbers. (Even
the little Camano 31' burns 9 gal/hr at 15 kts for a mileage well below
2).
I also posted some comments about running on one engine to save fuel.
It
appears that, if you go slow enough, it might actually be possible -
even on a
boat like ours without featherable props. But you'd have to cruise
below 6.5
kts. In exchange, you might get something over 5 miles per gallon.
Happy - and economical - summer cruising, Henry www.snodoglog.com
Gas prices getting you down? Search AOL Autos for fuel-efficient used
cars.
(http://autos.aol.com/used?ncid=aolaut00050000000007)
All hands--
Do any others have performance data to share?
Henry of Sno' Dog wrote:
Being an engineer, and prompted by a recent discussion on the PDQ Forum, I
decided to compile two years of Sno' Dog cruising data and put it into tabular
and graphical form. The data is now posted on our website at:
www.snodoglog.com/Performance.html
It shows mileage ranging from 3.8 n mi/gal (4.4 stat mi/gal) at 7 knots down
to 2.4 n mi/gal (2.8 stat mi/gal) at 14.5 knots (16.7 mph).
If you think fuel burn in gallons per hour, Henry's diesel-powered
PDQ 34 burns 2 gallons per hour at trawler speed (7 knots) and 6 gph
at cruising speed (14.5 knots).
My gasoline-powered TomCat 24, equipped with twin Yamaha 100s, burns
3.5 gph at trawler speed, compared to Henry's 2.0 gph.
At his cruising speed (14.5 knots), I'm loafing along at 6.5 gph,
compared to his 6.0 gph.
At my cruising speed (20 knots), I burning about 10 gph, just a tad
more than Henry does at that speed.
My top speed, loaded for cruising, is a little over 30 knots with
fuel burn at about 17 gph.
My numbers are based on our first 10-day cruise. Please note the
TomCat is a tiny boat compared to the PDQ. Our all-up cruising weight
is maybe 8,000 pounds. I'll develop a more engineer-like method of
presenting our numbers in time.
--Georgs
Georgs Kolesnikovs
TomCat 24 At Last!
Frenchman's Bay, Lake Ontario
http://tomcat-tales.blogspot.com
A number of years ago I did several thousand miles on a PDQ 32 sailing cat. I don't remember the numbers exactly, and don't know if there is any comparison in hulls, but we got almost 80 % hull speed with one engine and subsequent?half the fuel burn. Power was Yanmar 2GM times two, about 18 hp each,?and the boat was fast, 7 to 9 knots. I'm thinking we got about 1/2 gal. per hour per engine at about 3000 to 3200 rpm.
-----Original Message-----
From: Georgs Kolesnikovs georgs@powercatamaranworld.com
To: Power Catamaran List power-catamaran@lists.samurai.com
Sent: Tue, 8 Jul 2008 9:20 am
Subject: [PCW] Powercat performance, was PDQ Performance
All hands--
Do any others have performance data to share?
Henry of Sno' Dog wrote:
Being an engineer, and prompted by a recent discussion on the PDQ Forum, I
decided to compile two years of Sno' Dog cruising data and put it into tabular
and graphical form. The data is now posted on our website at:
www.snodoglog.com/Performance.html
It shows mileage ranging from 3.8 n mi/gal (4.4 stat mi/gal) at 7 knots down
to 2.4 n mi/gal (2.8 stat mi/gal) at 14.5 knots (16.7 mph).
If you think fuel burn in gallons per hour, Henry's diesel-powered
PDQ 34 burns 2 gallons per hour at trawler speed (7 knots) and 6 gph
at cruising speed (14.5 knots).
My gasoline-powered TomCat 24, equipped with twin Yamaha 100s, burns
3.5 gph at trawler speed, compared to Henry's 2.0 gph.
At his cruising speed (14.5 knots), I'm loafing along at 6.5 gph,
compared to his 6.0 gph.
At my cruising speed (20 knots), I burning about 10 gph, just a tad
more than Henry does at that speed.
My top speed, loaded for cruising, is a little over 30 knots with
fuel burn at about 17 gph.
My numbers are based on our first 10-day cruise. Please note the
TomCat is a tiny boat compared to the PDQ. Our all-up cruising weight
is maybe 8,000 pounds. I'll develop a more engineer-like method of
presenting our numbers in time.
--Georgs
Georgs Kolesnikovs
TomCat 24 At Last!
Frenchman's Bay, Lake Ontario
http://tomcat-tales.blogspot.com
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