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 Post subject: FOAM INSIDE THE HULL
PostPosted: Thu Jan 27, 2005 3:17 pm 
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Joined: Mon Oct 11, 2004 12:24 am
Posts: 143
Location: Edmond Oklahoma
KEVIN STATED:Now I am starting repairs on a holed part of my starboard hull. After grinding away all of the bad glass I am looking at a void about 15" long and 2-3" wide with the foam from the pylon about 2/3 of the way bow-side in the hole. Normally for a hole like this I would just glass the hell out of the inside with several layers of 8oz mat then grind a bevel into the foam/glass on the outside and finish up with a few more layers of mat then finish. I am looking into the hull and notice that the foam block at the bottom of the pylon is only bonded to the starboard side of this hull (the more rounded side not the vertical side). Is this normal or should I bond it to the other side while I am in here working? Also do you think it would be beneficial to separate the foam from the side it is bonded to so that I can glass in a continuous piece of mat?

Thanks! Please advise.

~Kevin

I am adding glass, where the glass is old and leafing up of the side. Just to beef up the pylons a little. I may be wrong but it feels right.

Anyone???

Todd


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 Post subject: Pylons
PostPosted: Thu Jan 27, 2005 4:10 pm 
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Joined: Tue May 27, 2003 12:44 pm
Posts: 9016
Location: Oceanside, California
The foam block at the base of the pylon is what we call the "pylon shoe". This is supposed to be bonded to both inboard and outboard surfaces. This is a dense foam / fiber filled structure that we glass in while the hull is open. I think they used to just wet some glass and wrap around the shoe and place it down there. We glass in a bit better these days.

Any additional reinforcement here cannot be bad.

Here is some additional info:

After glassing in the shoes and when glueing the decks on, it goes like this...

The hull is placed in the glue jig, upside down and hanging up high. The deck is placed in the jig upside down and low. The pylons are already glassed as part of the deck structure. In this position the pylon bottoms are sticking up in the air. They "wet-out" some glass cloth and combine with putty material into a folded over object and place on top of each pylon. As the hull is lowered, the pylons insert into the shoes. The folded over glass presses into the shoe and creates the bond. It looks pretty rough because it is a "blind fit". Failures here can be corrected by pouring resin into the shoes to fill voids and bond the post back to the shoe.

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Matt Miller
Director of Parts and Accessory Sales
Hobie Cat USA


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 Post subject:
PostPosted: Thu Jan 27, 2005 11:04 pm 
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Joined: Mon Oct 11, 2004 12:24 am
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Location: Edmond Oklahoma
Thanks Matt for the info this helps alot. I was considering not installitng the aft inspection hatches, but this sold me. She was made in June of 1973 I hope she is around for the another 32 years. Maby :?: My intention are to sail hard. :twisted: and move up. :P
here is a link to have a better visual asspect.

Toddhttp://www.thebeachcats.com/modules.php?set_albumName=Pictures-Inside-Hobie-14&op=modload&name=gallery&file=index&include=view_album.php


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PostPosted: Fri Jan 28, 2005 9:00 am 
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Joined: Wed Jun 30, 2004 6:39 am
Posts: 471
Location: Finger Lakes, NY
This video in particular is inspirational. Jaime - if you tune in here this is really instructional showing great crew work under extreme wave and wind conditions.

The only thing that I would be doing differently on this is my left foot would be on the corner casting and rear foot would be hooked under a suicide strap on the hull and my crew would basically be in my lap. THAT is how you get your weight back. Watch this and you will see what I mean.

It is AWESOME!!!
http://www.thebeachcats.com/modules.php ... load&cid=2

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The fact that this windy world is largely covered in water obviously means that man was meant to sail.


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 Post subject:
PostPosted: Fri Jan 28, 2005 10:41 am 
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Joined: Thu Mar 25, 2004 5:39 pm
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Location: West Texas
I'd really like to look at the video but your link just goes to a page with lots of videos. Can you tell me the title of it? THX. :D


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PostPosted: Fri Jan 28, 2005 11:09 am 
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Location: Finger Lakes, NY
WATCH THEM ALL :twisted: :!:

Kidding, I have almost completed that task myself however. FUN! 8)

The one I was referring to is H16 downwind with headcam (and a crash!!)

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The fact that this windy world is largely covered in water obviously means that man was meant to sail.


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 Post subject:
PostPosted: Fri Jan 28, 2005 11:26 pm 
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Joined: Thu Mar 25, 2004 5:39 pm
Posts: 433
Location: West Texas
Oh - right that one is great! The pitchpole in Sweeden. :D I'll bet they're glad they're wearing drysuits!


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 Post subject:
PostPosted: Sat Jan 29, 2005 9:46 am 
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The link I got just has pics of a cut up hobie.

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"I'm just tryin' to keep everything in balance, Woodrow. You do more work than you got to, so it's my obligation to do less." Augustus 'Gus' McCrae


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 Post subject:
PostPosted: Sun Jan 30, 2005 12:15 pm 
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Joined: Mon Oct 11, 2004 12:24 am
Posts: 143
Location: Edmond Oklahoma
Philippine Hobie Challenge Promotional Video is extemly insperational. Long term goal setting may be in order here.

Todd


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