Re: bottom butt straps?

I staggered two sheets of 1/4" to laminate the bottom of my micro.
I worked fine with no problems. I drilled a few holes to vent
trapped air, and then used sheet rock screws to temporarily hold the
assembly together while the epoxy kicked off. I filled and glassed
the whole hull so the sheet rock screw holes were not an issue.

I recommend glassing the hull prior to putting on the keel!!! do as
much now before the hull becomes a real beast to deal with. Working
upside down is no fun at all.

David Jost
ammending my quick reply, while 6" is probably adequate, full half-sheet
overlaps (2') would be the strongest - it may mean ripping one of your
sheets in half before cutting out the hull shape, and doing shorter 2'
chunks at either end - probably best to do these smaller pieces as the
second layer, just to make it a bit easier to get the pieces on and have one
less floppy seam to wrestle with on the overturned hull.

Paul Lefebvre


I was thinking (rare) if i stagger the 2 layers of 3/8 inch bottom
panels (on a micro) about 6 or more inches can i do away with the
butstraps? Would make building the bunks much more simple and less
crap on the sole to trip on.
Jason
--- "Jason Stancil" wrote:
> ...do away with the
> butstraps?
> ...building the bunks much
> more simple and less
> crap on the sole to trip on.

If you really study the Micro
plans you begin to realize the
genius of Phil Bolger.

The buttstraps on the bottom
of the boat are where the bolts
go to connect the 1 1/2" keel
nailer. Those buttstraps serve
structural double duty as a
stress reduction point for
this bolt heads. Indeed, he
even has added a 'false buttstrap'
at the midpoint of the boat.

The sides of the bunks, and the
sides of the raised floor of the
Navigator upgrade also serve
structural double duty. PB&F has
written [and said] that the flex
of the Micro bottom in offshore
conditions is a concern.
The berth sides are intended as
structural reinforcement to the
bottom.

I know it is hard to resist. But
personally I have learned to chant:
"In Phil We Trust" as a mantra,
everytime I get the urge to
'improve' on a PB&F design.

Not that PB&F doesn't ever make a
mistake, [or that his designs can
never be improved], but it pays to
think twice [and thrice] before
trying to out-guess a genius.
yes, definitely do this if you are laminating the bottom out of 2 layers.
It's the right way to do it, even Bolger said so in his letter to me.

Paul

-----Original Message-----
From: Jason Stancil [mailto:jasonstancil@...]
Sent: Thursday, April 22, 2004 11:14 AM
To:bolger@yahoogroups.com
Subject: [bolger] bottom butt straps?


I was thinking (rare) if i stagger the 2 layers of 3/8 inch bottom
panels (on a micro) about 6 or more inches can i do away with the
butstraps? Would make building the bunks much more simple and less
crap on the sole to trip on.
Jason




Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
(978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
Yahoo! Groups Links
I was thinking (rare) if i stagger the 2 layers of 3/8 inch bottom
panels (on a micro) about 6 or more inches can i do away with the
butstraps? Would make building the bunks much more simple and less
crap on the sole to trip on.
Jason