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Go Back   SailNet Community > General Interest > General Discussion (sailing related) > Polars, PHRF, boat speed, boat shopping
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Thread: Polars, PHRF, boat speed, boat shopping Reply to Thread
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Topic Review (Newest First)
07-17-2014 10:10 PM
Daveinet
Re: Polars, PHRF, boat speed, boat shopping

That is an interesting way to do it. I'm curious how you encourage the trailer to go down into the water. Many launch ramps level out not too far after you are off the ramp. Not down hill enough for the trailer to roll on its own, especially if its muddy.

I put my boat in the water for the first time this pasts Sunday. When I returned to the ramp, the center board was dragging. The boat would not make it all the way to the dock without pulling up the center board. My draft is 4 feet. I have to be real careful not to get hung up on this shallow lake. I got caught twice under sail. It was good to get it out on the water. I need to learn a few technical things on how to get the sail shape like it should be. The sails don't seem stretched out, but they do tend to pocket to the point were they are hooking on the end. Both sails seem to do that. I also could get the sail to lay open at the top. It either wanted to pocket all the way up, or scoop out in the middle. Both the jib and the main had this issue.
07-07-2014 04:54 PM
SHNOOL
Re: Polars, PHRF, boat speed, boat shopping

I know this is an old thread but didn't realize this statement was hanging out there... so I thought I'd clarify.

I trailer launch and retrieve my Capri 25 twice yearly... It's doable... but you much strap launch it... There are literally dozens of videos on strap launching keel boats.

Much larger keel boats than 4'2" are launched in this method, including J/80s, with 5' keels. Honestly the tricky part isn't launching its retrieval, especially if your launch ramp is steep (mine is)... You must have a bow roller, to bring the bow up and forward as you winch the boat onto the trailer. This is required to take a flat boat, and mate it to a trailer that is at up to 20 degrees off level.

like this:
09-13-2013 08:38 AM
Daveinet
Re: Polars, PHRF, boat speed, boat shopping

I was careless in my search for specs, and did not notice I looked at a Catalina 25, rather than the Capri 25.

I just went back and looked at the spec you listed, and noticed a fin keel. Is there a version with a swing keel or dagger board? 4.2' draft is not going to be trailer launchable.
09-13-2013 07:48 AM
SHNOOL
Re: Polars, PHRF, boat speed, boat shopping

Oh and yes and Yes, Surfs on a run, and Surfs on a reach! Spent our last race doing just that! Spent nearly our whole race above theoretical hull speed.

The Spinnaker is massive on them.
09-13-2013 02:47 AM
SloopJonB
Re: Polars, PHRF, boat speed, boat shopping

I think you have that Sa/D wrong - check here. It says it's over 20.

CAPRI 25 (CATALINA) sailboat specifications and details on sailboatdata.com
09-13-2013 12:01 AM
Daveinet
Re: Polars, PHRF, boat speed, boat shopping

When I started this thread almost 3 years ago, I was not aware of Portsmouth Yardstick, however, now it is my go to place for numbers. Once in a while, you will find something that has a PHRF rating, but no Portsmouth, so you have to convert for comparison.

The Capri 25 is interesting, but I'm very curious how hit gets its numbers. With a SA/Disp ratio of only 15.84, that is very low compared to most boats I have been watching. It jut hard to believe it would run anywhere near boats in the SA/Disp ratio in the mid 20s. Or is all of its speed down wind? Does it plane? Will it plane on a beam reach?
09-12-2013 11:29 PM
SHNOOL
Re: Polars, PHRF, boat speed, boat shopping

Love the old thread dredge...
Capri 25... slightly better to sit up in down below than the 22... boatloads faster...
Also, if you only ever heard of PHRF, then you haven't looked real hard at numbers...
Try Portsmouth Yardstick...
Current Tables

They have numbers from every sail and yachtclub that has used portsmouth to handicap race.. usually they are the smaller trailerables, but they have numbers for a surprising amount of boats.

Our club uses Portsmouth yardstick... it's got its drawbacks but it works... anyway, it's another way to look up relative speed.
09-12-2013 07:29 PM
Daveinet
Re: Polars, PHRF, boat speed, boat shopping

I have often thought removing the pontoons on my Hobie 14 of putting some old snowmobile skies on instead just to see what it would do out on the lake.
09-12-2013 04:02 PM
Rhys05
Re: Polars, PHRF, boat speed, boat shopping

Quote:
Originally Posted by Daveinet View Post
Only thing that is ruling the 7.9 out for me is price tag. When I started looking, my budget was a little bigger than it is now. I keep saving money, but there is a leak in my boat fund. At the moment its leaking out faster than I can pump it in. Realistically, I am in the $5K and under bracket.
I feel ya there man. Maybe you should get an iceboat for this winter? Now THAT should fulfill ANYONE's need for speed! Not sure what else to recommend that is a keelboat with a cabin, fast, and around $5k.
09-12-2013 03:41 PM
Daveinet
Re: Polars, PHRF, boat speed, boat shopping

Only thing that is ruling the 7.9 out for me is price tag. When I started looking, my budget was a little bigger than it is now. I keep saving money, but there is a leak in my boat fund. At the moment its leaking out faster than I can pump it in. Realistically, I am in the $5K and under bracket.
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