That just got me even more excited to get her in the water. She just looks
fast. I sanded the bottom well but did not remove all the old paint so I
think it is pretty clean but certainly not burnished. Next year I think I
will really go through the boat below the waterline and make sure the bottom
is smooth. Glad to hear the prop seemed to make such a big difference. You
are right. Beating the bigger faster guys is always satisfying. My boat is
set up for racing so I am very curious to see how she goes. Sounds like you
might have been running right up to hull speed. Nice! 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of
Jean-Francois J Rivard via CnC-List
Sent: Tuesday, July 08, 2014 11:08 AM
To: cnc-list@cnc-list.com
Subject: Stus-List Folding prop

 

Hi Skip, 

I just put-on an old school Martec folder and I love it.  Combined with a
clean bottom  (But old sails) and a few tweaks the boat just flies. I was
out in 15-22 true wind breeze last week and detroyed my old 7.0 knots record
with a whopping 8.3 (GPS Calibrated) knots sailing close hauled.. On the way
home cruisin' on an easy beam  / broad reach we were still cookin' along 7.0
to 8.2 knots all the way..  

In less exciting winds this saturday,, We were making 6.0+ knots on  8.0
knots of true wind,,  Long story short since I am into sailing.. I love it.
Even if you are not racing.. Isn't it nice the know the boat has an edge on
speed and efficiency?  

As for actual motoring,,  The acceleration is pretty mild both in forward
and reverse.  There's also a fair amount of prop walk in reverse.  Once
under way it will make about 6.8 knots at cruising RPM's (2,850) on my 27 hp
Yanmar.  So it's pretty efficient.  It also causes more vibrations than the
fixed prop (I'm still working on that looking at prop  / hull clearance and
perhaps fine tuning the pitch). 

As for manually lining-up the prop to make sure the blade are horizontal,
that's a 30 second job my son is glad to do or I can do myself easily. 

For family's usage on our lake / at our marina, the slow reverse
acceleration / prop walk is a total non-issue.  It just requires a little
more advance planning and if you play your cards right the prop walk
introduces an added dimension in your ability to control the stern / pivot
the boat on it's own axis.  

I do however find that rippin' up and down the lake at "This can't be right"
speeds blowing by bigger "Faster" boats is most satisfying.. 

To each his / her  own, have fun sailing this summer.

-Francois Rivard
1990 34+  "Take Five" 
Lake Lanier, Georgia

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