 Check out the bookstore at IRBS.com |
|
|
|
|||||
|
||||||
From: John Bickford (no email)
Date: Sat Sep 11 2004 - 14:10:11 EDT
Dave,
Your MAXIMUM weight to power ratio limit seems reasonable. The maximum
rated displacement on my one-year old 43 ft catamaran, purchased
specifically with the intent of cruising the Caribbean, is 11,500 kg
(25,353 lbs). She has two 27 hp Yanmar diesels, which calculates to 469.5
pounds per hp. Granted, catamarans are quite different from monohulls as
far as draft, displacement, windage, etc. go so we may be comparing apples
and oranges. Add in a 20 foot separation between screws and you further
confound comparison.
My family just finished cruising in the San Juan Islands (between Puget
Sound [Washington] and Strait of Georgia [Canada]) for 3 weeks where we
experienced some serious currents and tide rips. We had plenty of power to
handle them easily and have not yet seen winds that would seriously hinder
us under power. At full throttle, we can make 6 knots and cruise
comfortable at 5 knots.
My two cents about your plan to begin cruising in six months:
You stated in one of your recent posts that you are not new to the sea and
boats, just sailing. From that, I conclude that you have some appreciation
for how volatile the sea can be and that you realize that Mother Nature is
not to be trifled with. Oceans can go from pleasant to fearful in only a
few hours or miles so you must constantly beware.
I have been sailing for 37 years, always dreaming of one day being able to
cruise where and when I or my guests want to go. Now that it is nearing
realization (we plan to take in lines next summer, head to Alaska, then down
the west coast to the Galapagos Islands, then through the Panama Canal), I
am beginning to realize how much preparation is really involved. I don't
feel ready now but am confident that come May 2005, we will have enough of
the detials worked out to make it happen, thanks to some really good advice
from the members of this discussion group.
Speaking of good advice from this group, the best so far is to start out
cruising locally and work your way up to longer trips as your experience and
comfort levels grow.
Good luck!
John & Lela Bickford
S/V Yachtman's Dream
----- Original Message -----
From: "squidsrus85" <>
To: <>
Sent: Wednesday, September 08, 2004 7:50 AM
Subject: [world-cruising] Engine HP 'v' displacment
>
> Just finalizing the short list and I notice a huge disparity between
> lbs and hp.
>
> Being of the engineering ilk, there just aint no substitute for cubic
> inches.
>
> I have a line in the sand MAXIMUM at 500lbs of displacement per HP,
> is this over-cutious?
>
> In fact I am leaning towards boats that have 350-400lbs/HP.
>
> I'd hate to be drifting towards a reef and have the motor running but
> only slowing the impact and not preventing it.
>
> Anyone care to shed some light?
>
> The boat at the top of my list comes in at 390lbs/hp and sounds good
> to me.
>
> Dave
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
------------------------ Yahoo! Groups Sponsor --------------------~-->
$9.95 domain names from Yahoo!. Register anything.
http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/A1TolB/TM
--------------------------------------------------------------------~->
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/world-cruising/
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|