21 GT by Zippkits

Intlwaters

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Wasted wages

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Jan 2, 2006
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2,101
Nice build !!

Are those outer buttons on the boom tubes part of the kit ?

And do I see heat shrink on the inside of the sponsons on the boom tube slip joint?
Are you using that in place of bolts to hold the sponsons on ?
 

Tim Kish

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Jul 7, 2003
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2,309
Nice build !!

Are those outer buttons on the boom tubes part of the kit ?

And do I see heat shrink on the inside of the sponsons on the boom tube slip joint?
Are you using that in place of bolts to hold the sponsons on ?
The buttons are tubes that go through the sponsons and are part of the kit and yes shrink tubing is holding the sponsons in place. I can't take credit for that idea but it works very well and adds zero weight which is so important to a B hydro.
 

Wasted wages

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Jan 2, 2006
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Cool idea,,, I once read somewhere about using radio box tape, but I thought nah... don't want my sponson flying off in the middle of a turn... 🤪

I would use nylon bolts before radio box tape....but heat shrink sounds like it could work... weight trade off is probably the same as 6-32 nylon bolts and nuts setup..

Do you thin CA the tubes where they slide together first ??
 

Tim Kish

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Jul 7, 2003
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2,309
Cool idea,,, I once read somewhere about using radio box tape, but I thought nah... don't want my sponson flying off in the middle of a turn... 🤪

I would use nylon bolts before radio box tape....but heat shrink sounds like it could work... weight trade off is probably the same as 6-32 nylon bolts and nuts setup..

Do you thin CA the tubes where they slide together first ??
Just heat shrink, nothing else.
The stuff I use has a tacky glue on the inside that activates with heat, not sure if all tubing comes that way.
The other benefit is you can change out a broken boom tube very quickly!
 

Ron Zaker Jr

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Nov 26, 2002
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1,538
Just heat shrink, nothing else.
The stuff I use has a tacky glue on the inside that activates with heat, not sure if all tubing comes that way.
The other benefit is you can change out a broken boom tube very quickly!
Hi Tim, boat looks real nice! Have you run it with the heat shrink tubing? Just curious if the turn fin side stayed together?
 

the german

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Apr 21, 2008
Messages
438
...... and I stole the idea from Don . Works perfectly!
Here is the MC Master Carr link.


Alex
 
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