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 Post subject: Re: Zip fibreglassing
PostPosted: Tue Aug 14, 2012 3:34 pm 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
Bill
I think I have it sorted out and I certainly wont be using CSM. I will be using 6oz cloth and will be ordering it today.
Managed to get the last bottom panel on yesterday, which was a bit of a challenge with nowhere to clamp, but fortunately had a helping hand for the first time on this project so it worked well.
Today I will be filling and sanding all those hundreds of screw holes, oh, what a joy!!!!
Have a great day.
Keith

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 Post subject: Re: Zip fibreglassing
PostPosted: Tue Aug 14, 2012 3:40 pm 
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Joined: Wed Nov 23, 2005 6:45 am
Posts: 5981
Location: Birmingham, AL, USA
Keith

I don't think you will go wrong with 6 oz.

Bill

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 Post subject: Re: Zip fibreglassing
PostPosted: Thu Aug 23, 2012 6:18 am 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
Today I fibreglassed my Zip, all except the transom, which I will do tomorrow, with the help of some friends.
Also tomorrow I need to flood the 6oz cloth to get a smooth finish.
My question is now about the water line.
From my reading I understand that the draught of the boat is 4". I was thinking of putting the waterline 7" above the chine at the transom and taper to the hull/ bottom plank joint at the bow.
Would anyone care to comment on this please.
Keith


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 Post subject: Re: Zip fibreglassing
PostPosted: Thu Aug 23, 2012 8:09 am 
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Joined: Wed Apr 15, 2009 7:36 am
Posts: 2077
Location: Indy
Nice job. It turned out to be pretty easy wasnt it?

The actual waterline on my Zip sits at 4-1/2 inches at the transom. Abeam frame 4 its 2-1/4 inches measured up from the bottom/side joint along the chine.
This is with a 150 pound motor and battery in the back with fuel tank up front under the bow. Hopefully that gives you a starting point and you can guess at your adjustments from there for your equipment.

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My Zip build log...
http://www.vupilot.blogspot.com
http://picasaweb.google.com/vupilot/Chr ... O0x7SvsQE#

"Nothing screams poor craftsmanship like wrinkles in your duct tape."


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 Post subject: Re: Zip fibreglassing
PostPosted: Fri Aug 31, 2012 3:53 pm 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
Thanks Vupilot for draft info, that is a big help.
On thing I have noticed from the photos is the length of the skeg. It seems to vary a lot from the recommended standard, which seems to be about 95" long.
Would anyone care to comment on this and the effects that are a result of varying lengths.
I have made mine to standard but have not glued it on yet, so still time to change.

Have a great day
Keith


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 Post subject: Re: Zip fibreglassing
PostPosted: Fri Aug 31, 2012 4:03 pm 
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Location: Birmingham, AL, USA
The higher and longer the skeg is, the slower it will turn. But, the boat will rock more slowly when you get in or out.

Bill

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Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
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 Post subject: Re: Zip fibreglassing
PostPosted: Fri Aug 31, 2012 4:16 pm 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
So, in your opinion, is the standard skeg length appropriate or to long.
Keith

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 Post subject: Re: Zip fibreglassing
PostPosted: Fri Aug 31, 2012 6:16 pm 
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Joined: Wed Nov 23, 2005 6:45 am
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Location: Birmingham, AL, USA
I really don't know on the zip. Most people say to leave it off and see how it the boat acts. you can add one later.

Bill

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Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
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 Post subject: Re: Zip fibreglassing
PostPosted: Fri Aug 31, 2012 7:49 pm 
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Joined: Wed Apr 15, 2009 7:36 am
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Location: Indy
My skeg is a short one maybe 3ft or a little more and the boat slides in shallow, lazy turns but when turned a little steeper and the boat leans a little it carves a really nice turn like its on rails. Its a nice mix but the longer skeg is probably the way to go for the most consistant handling. All the other Zips I have ridden in have longer skegs than mine and I dont notice a big difference except the longer ones make shallow turns with less drift, more on rails feeling all the time but they all seem to turn sharply the same, it seems like in sharp turns the chine is doing most of the work unless you leave the skeg off completely, then they slide in turns similar to driving in the snow, which is fun too if thats what you enjoy. Allen B has no skeg on his squirt and its a hoot but you have to anticipate that in an emergency it wouldnt change direction as fast as a skeg would allow.

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My Zip build log...
http://www.vupilot.blogspot.com
http://picasaweb.google.com/vupilot/Chr ... O0x7SvsQE#

"Nothing screams poor craftsmanship like wrinkles in your duct tape."


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 Post subject: Re: Zip fibreglassing
PostPosted: Sat Sep 01, 2012 6:33 am 
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Joined: Sun Apr 10, 2011 5:30 pm
Posts: 143
Location: Winter Park, Florida
Caution with bi-axial. On Lo Volt I use the bi-axial on inside seams for strenth and the cloth dries very ROUGH you will spend a life time trying to fix it. I actually would lay the bi-axial and the cloth right over it on the seams and still had some trouble that l had to take care of with voids between it and the bi-axial but was easier to deal with than the rough bi-axial finish. I also used the filitting compound to smooth out rough places that were going to be painted anyway.

Have fun.

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 Post subject: Re: Zip fibreglassing
PostPosted: Sat Sep 01, 2012 3:49 pm 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
Thanks guys.
I will leave the skeg long and see how we go.

Keith

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 Post subject: Re: Zip fibreglassing
PostPosted: Wed Sep 26, 2012 6:18 am 
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Joined: Fri May 11, 2012 1:09 am
Posts: 54
Location: Sydney, Australia
Just thought I would let you all know that I righted my Zip hull last weekend with no problems. Had all the family around and had it over in about 10 minutes.
Now the fub starts with doing the deck and interior.
The first thing I did was laminate in bearer extensions to the chine where I had cut them off on the frame. I am actually happy about this because it offers extra support right where the cradle will be on my tender lift.
Today I worked out how to put fuel tanks (2) under the front seats, which requires recessing them as much as possible into the floor. Tomorrow I hope to set these in properly and then encapsulate the interior of the hull before installing the floor.

Have a great day
Keith


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File comment: Hull with framework removed
IMG_0496.jpg
IMG_0496.jpg [ 1.89 MiB | Viewed 265 times ]
IMG_0502.JPG
IMG_0502.JPG [ 2 MiB | Viewed 265 times ]

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 Post subject: Re: Zip fibreglassing
PostPosted: Wed Sep 26, 2012 6:53 am 
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Joined: Tue Aug 31, 2010 11:44 pm
Posts: 660
Location: Wichita, Kansas
That's some very clean work! Nicely done!

I am keenly interested in how your modified hull performs. From what little I can tell from your pictures, the lines seem fair and it looks like it was designed that way. If I didn't know it was a Zip, I'd have never guessed it.

Good job! Keep the pics coming.

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"When all else fails, follow the instructions." -Dad


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