New boat project CCSF25.5 - build thread

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Thu Mar 24, 2016 6:57 am

Hello Max,

She is designed for either a big single or twin 200's, transom and bracket will fit either a 30" single or twin 25".

With twin 200'S she should see 65 mph, ruise at 35+. Only slightly less speed for a single 300, but better economy.

Most plans you find are for moderate boats, I couldn't find what I wanted exactly in other designstates so that's how this one was born.




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Re: New boat project CCSF25.5 - build thread

Post by maxtork on Thu Mar 24, 2016 7:32 pm

Wow 65 is really moving for a boat that size. I was thinking a 350 Mercury Verado single would work well. It would be lighter than twin 200s but not sure if that would cause issues with that much horsepower pushing one pad on the transom bracket instead of two. Either way I'll be watching this one closely. If this performs as expected you are going to have a real winner. Keep up the good work!

Max

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Fri Mar 25, 2016 9:21 am

maxtork wrote:Wow 65 is really moving for a boat that size. I was thinking a 350 Mercury Verado single would work well. It would be lighter than twin 200s but not sure if that would cause issues with that much horsepower pushing one pad on the transom bracket instead of two. Either way I'll be watching this one closely. If this performs as expected you are going to have a real winner. Keep up the good work!

Max

thanks max, the bracket is able to take a 350. That 400R would sure be sweet too, depends what the bank account will allow for Smile
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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Mon Mar 28, 2016 1:50 pm

putting more fairing on, and starting to take a little off. I need to order a new long (fairing) board. Pretty happy with the first passes of fairing on the bottom, should not take much more than a couple passes before I hit it with primer. Of course, once the primer goes on, I will see just how much more fairing I have to do.

Sides are going to be a pain, mostly just from the ergonomics of sanding at that height. Will not be fairing the sides out 100% before flipping anyway




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Re: New boat project CCSF25.5 - build thread

Post by DAYTRIP on Mon Mar 28, 2016 3:12 pm

I used a notched trowel recently and it worked really well. I spend the putty with the notched side then pulled the flat side across tightly. What it does is give you a nice thick even coat of about 1/16". It cuts way down on the number of fill and fair passes. It work great on hull sides.

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Tue Mar 29, 2016 12:27 pm

That is an excellent idea,  I never had a better application for that technique !  Thanks.

Here is a little bit I put on this morning to see how it works.  I used a little bigger notch. I dont mind a little extra fairing on the sides, I need to make sure those strips dont print through



Finished glassing in the side extensions also.





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Re: New boat project CCSF25.5 - build thread

Post by maxtork on Tue Mar 29, 2016 8:29 pm

Looking good!...are your arms tired yet? lol

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Thu Mar 31, 2016 2:03 pm

maxtork wrote:Looking good!...are your arms tired yet? lol

I have not used the longboard yet, so my shoulders are still intact  Smile

Scrapped the notched trowel, takes too much time and its not really of benefit on this application.  I could see it being very helpful if you were blending in a repair, you can see the depth of the faring which makes it easy to blend it in evenly.

Adding more fairing











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Re: New boat project CCSF25.5 - build thread

Post by maxtork on Thu Mar 31, 2016 9:36 pm

Just curious...what product are you using for fairing? I hope it's cheap...looks like you need a ton of it.

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Sat Apr 02, 2016 8:49 am

maxtork wrote:Just curious...what product are you using for fairing? I hope it's cheap...looks like you need a ton of it.

at this stage Im mixing my own with the RAKA epoxy (same as what I used for glassing) and my pre-mix fairing compound. Here is a link to the fillers category of the store where we have various filler and blends of fillers....


http://www.gulfstreamcomposites.com/category-s/113.htm

After I get close to fair, I will switch over to a pre-mixed putty, which goes on a lot smoother than what you can mix by hand. Its also about twice as expensive so thats one reason to get the boat close to fair with your own mix.


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Re: New boat project CCSF25.5 - build thread

Post by maxtork on Sat Apr 02, 2016 10:23 pm

I've never worked with epoxy before, only polyester resin. That stuff must be really hard to sand. I was thinking it was something a bit more like a bondo type consistency that sanded pretty easy. I might have to buy some and play with it to get used to working with it.

Boat looks good. Can't wait to see more pics.

Max

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Sun Apr 03, 2016 10:27 am

maxtork wrote:I've never worked with epoxy before, only polyester resin. That stuff must be really hard to sand. I was thinking it was something a bit more like a bondo type consistency that sanded pretty easy. I might have to buy some and play with it to get used to working with it.

Boat looks good. Can't wait to see more pics.

Max

epoxy is actually a little softer to sand. The fillers in the fairing I am using are very similar to bondo or a fairing made with polyester. The difference is the bonding ability of epoxy. Also, epoxy takes longer to set up for sanding. There are a lot of little tricks to fairing, and you can learn them on a small project where the learning curve is measured in small batches of putty and less time. You dont want to learn fairing on a boat this size Very Happy
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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Sun Apr 03, 2016 10:40 am

Sharpening the strakes and chine.  The strakes and chine need to be rounded in order for the fiberlgass to wrap aound them, but I want them to be sharp for performance sake.  Water breaking clean off these surfaces creates mush less drag.  I make passes with a more dense putty (milled fibers/silica/ little wood flour) so that the edges are harder than regular fairing.  After the hard putty sets up, I block sand it sharp, then another pass of regular fairing to blend it all in.





this is after the hard putty has been block sanded sharp



Pass of faring over the sharpened edges





Will hopefully get a little highbuild primer on the bottom this week so I can see how much more faring I have to go
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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Tue Apr 05, 2016 5:45 pm

more fairing, plan to hit the port side and transom with some primer tomorrow so I can see just how much more fairing there is to do. Sharpening the transom edge





Sharpening the transom edge, this get block sanded sharp before primer.

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Thu Apr 07, 2016 7:58 pm

more fairing, sharpening the chine and transom, first coat of primer. Port side and transom, stb is a couple steps behind









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Re: New boat project CCSF25.5 - build thread

Post by maxtork on Sun Apr 10, 2016 3:15 pm

Wow that looks awesome! It's fun to see how much one coat of paint change the look of the project. I'm sure I'm not the only one who had to turn the computer over to see what it will look like right side up lol.

I had a couple more questions if you don't mind.

1. How many hours do you think you have into this build so far?
2. I saw how you created the strakes by bending the laminated boards down into the boat and attaching it to the jig. Once you have a coat of glass on the outside can you go underneath and trim off the excess or is there more to be done before it is stable enough to trim it back from the jig?
3. Do you have to glass the inside before turning it over or do you flip it then start work on the interior?

Looks great so far. Keep the pictures coming. If I lived closer I would offer to come help sand just for the experience.

Max

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Mon Apr 11, 2016 7:22 am

I'm at about 200 hours of actual work.

Some of the inside portion of the strakes will be removed, but not much. The stringers actually rest on the inside strake. I will cut them off where the protrude all the way through

No need to glass before flipping

Thanks for the kind words Smile
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Re: New boat project CCSF25.5 - build thread

Post by DAYTRIP on Mon Apr 11, 2016 1:27 pm

Looks good Joel. My arms are tired looking at it.

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Re: New boat project CCSF25.5 - build thread

Post by Topwater on Fri Apr 15, 2016 10:02 am

Looking good Joel, nice progress .

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Re: New boat project CCSF25.5 - build thread

Post by toddinbr on Fri Apr 22, 2016 9:41 am

Joel, been following this one closely. I check this thread everyday for progress. its looking great.

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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Fri Apr 22, 2016 2:09 pm

toddinbr wrote:Joel,  been following this one closely. I check this thread everyday for progress.  its looking great.  

not much in the last week or so, will be putting in some hours this weekend.
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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Tue Apr 26, 2016 8:00 am

getting back to the 26, more fairing................



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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Fri Apr 29, 2016 12:33 pm

more fairing of port side.  sharpening the chines, touching up starboard side.

Putting on the fairing is more important than taking it off.  With a nice wide blade and the right technique you can get a pretty fair surface with just two passes.  Made the second (vertical this time) pass of fairing on the port side today.  Pictures of the port side are before any sanding. I just got in my rolls of wide PSA paper 40,100,220 grit in 4.5" wide rolls - so much better than using spray adhesive and regular sheet paper !









Next week I plan to shoot the whole thing with more primer.  Rolling is nice, but it takes too much time Smile
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Re: New boat project CCSF25.5 - build thread

Post by Admin - Shine on Thu May 12, 2016 8:47 pm

Shot the hull with 1 gallon of primer, then sanded most of it off.

Down to the final  round of fairing of the bottom (chine down), so I switched from mixing my own fairing compound to the pre-mixed epoxy fairing compound (from EMC) .  This stuff is really nice, spreads a lot easier and thinner than what you can mix yourself.  I probably should have switched over to this a step or tow ago and saved myself some time.  

link to the fairing compound ....

epoxy fairing compound









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Re: New boat project CCSF25.5 - build thread

Post by Carolina flare on Sun May 15, 2016 3:19 pm

Looking great Joel!
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Re: New boat project CCSF25.5 - build thread

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