T&T: Fw: Exhaust

[Arild Jensen]

> -----Original Message-----
> From:Lrry N. Brown
> Saw an article in passagemaker about a dry side exhaust system on a boat.
> The main exhaust was below water and had a clam shell over it
> that would act as a venturi and suck the cooling water and exhaust under
way.
> There was a small hole just above the waterline for idle exhaust. It was
keel
> cooled but did take in raw water to inject into the exhaust elbow.
>
> Larry & Teri
> Cigano, 47' Prairie Sundeck


REPLY
Many of the larger yachts built here in BC now use this system.
The concept was originally pioneered by Mike Harling for Fairline back in
the 1970's while he worked in England. This system was refined with tank
tests by Queenship when Mike Harling worked at Queenship. Since then most
builders have copied it.

regards
Arild