[C320-list] Normal Performance Limits?

[Rod Boer]

It sounds to me that you are over propped.  You should be able to get up to
3400 RPM.  Can you adjust the pitch on the Kiwi?  If so, just reduce the
pitch and you should be able to get up to the full RPM

Rod Boer
Odyssey, #688 

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Amirault
Family - S&B
Sent: Friday, October 03, 2008 7:01 PM
To: c320-list at catalina320.com
Subject: [C320-list] Normal Performance Limits?

I had my boat on the water yesterday afternoon for likely the last sail of
the season. Although the wind was 15-20 knots on departure it had dropped to
near nil by the time the crew decided to head for home. To ensure we arrived
at the dock before dark I slowly pushed the throttle to maximum. On still
water this gave me revs at 2900, knots at 6.75 and plenty of black smoke. On
easing the throttle back to 2500 revs I was able to maintain 6 knots and
eliminate the smoke.

 

I have a Yanmar 3GM30, a clean bottom and a Kiwi prop. Is this approximately
normal?

 

Brian Amirault

#797 Waltzing Bear, too