[PUP] Selen or Kadey Krogen?

John Marshall johnamar1101 at gmail.com
Thu Feb 19 13:19:34 EST 2009


I stand corrected Tim.

Perhaps the various wet exhaust boats I've been on didn't handle the
exhaust correctly, but I could always smell a bit of burned diesel,
especially with a following or quartering wind. (But none of them were
wet-exhaust Nordhavns). Given we're pretty slow, the wind is often
blowing from the back.

Or maybe I'm just hyper-sensitive to the fumes.

John
On Feb 19, 2009, at 10:00 AM, Tim Johnson wrote:

> 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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