Im an considering buying a 39' motoryacht with 2x450HP DD engines.
It's equipped with Waterjet engines.

I can see that most other motoryachts in the same class can perform
around 30 knots max speed and about 25 while cruising. But the yacht i
am considering only goes about 15 knots. The sales people says it's
because of the waterjet is slower then Propeller. But it looks more
like a 50% reduction then anything else. It's this normal?.

Also the yacht makes a lot of noise. How are other yachts?

I don't know much about motor yachts used to do sailing.

How old is the boat? I hope jet drives have improved over the years but
back in the early '80s I worked for a guy with more money than brains.
He went to the Atlanta boat show and came back with TWO jet drive
boats. One a monster ski boat and the other a 30+' cruiser. Both boats
were pigs. Loud, slow gas guzzlers. A neighbor with an old 16' Chris
Craft could run circles around the ski boat with 1/3 the power.

The experience confirmed my choice to stick with sail.

Jesper Bruhn wrote:
Im an considering buying a 39' motoryacht with 2x450HP DD engines.
It's equipped with Waterjet engines.

I can see that most other motoryachts in the same class can perform
around 30 knots max speed and about 25 while cruising. But the yacht i
am considering only goes about 15 knots. The sales people says it's
because of the waterjet is slower then Propeller. But it looks more
like a 50% reduction then anything else. It's this normal?.

Also the yacht makes a lot of noise. How are other yachts?

I don't know much about motor yachts used to do sailing.


--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
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