[PUP] Selen or Kadey Krogen?

[Brian Smyth]

Hi Tim,

We build almost exclusively wet exhausts, and you are absolutely right!  We
have delivered boats long distances and fine the boats very clean on
arrival.  I also think wet exhausts are less expensive to build, and if an
exhaust separator is used, they are really clean and quite!

Brian
Yachtsmiths International

-----Original Message-----
From:
passagemaking-under-power-bounces+brian.smyth=ns.sympatico.ca at lists.samurai.
com
[mailto:passagemaking-under-power-bounces+brian.smyth=ns.sympatico.ca at lists.
samurai.com] On Behalf Of Tim Johnson
Sent: Thursday, February 19, 2009 2:01 PM
To: John Marshall
Cc: Barbara Wilkinson; passagemaking-under-power at lists.samurai.com
Subject: Re: [PUP] Selen or Kadey Krogen?

I take exception to John Marshall's comment re the "uninhabitability"
of the cockpit on wet exhaust boats.  I've owned six wet exhaust boats
of various types.  Those with the exhaust exiting the stern through a
flat transom can suffer from the "station wagon" effect at higher
speeds, resulting in exhaust fumes being sucked back into the
cockpit.  This can be unpleasant.  On my last two boats, a Nordhavn 57
and 64, the exhaust exits at the aft starboard corner through an
outlet that is underwater at about six knots.  The exhaust is thus
swept back behind the boat and does not come into the cockpit.  There
is no exhaust odor in the cockpit.

The wet vs. dry debate is endless.  For a thorough discussion of the
issue, I suggest Dave Gerr's article in the February/March and April/
May 2008 issue of Professional Boat Builder:  After weighing the
plusses and minuses of each choice, Gerr concludes:  "[M]y preference
is for wet exhaust on yachts and most small passenger vessels.  I
think the majority of boat owners will be happier living with a wet
exhaust."


Tim Johnson
M/V CLAIRBUOYANT
Nordhavn 64 #06
tim at timandclair.com
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