BlackFin to BlackPearl Arrr

Questions about boat repairs with our resins and fiberglass: hull patches, transoms and stringers, foam, rot etc.
jonnymac
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Re: BlackFin to BlackPearl Arrr

Post by jonnymac »

JDP wrote: Tue Nov 02, 2021 9:33 pm Finally have concrete to work on. In the process of designing a gantry for lifting.
a youtube i follow designed a mobile gantry he used to move some pretty heavy woodwooking equipment. here is the file if you want to reference it.
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Cranebow_Plans_Current.pdf
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JDP
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Re: BlackFin to BlackPearl Arrr

Post by JDP »

Thanks Jonnymac,

Wow nice plans and economical.
That is very similar to what I was thinking except I am going to use steel I-beam with a trolley system. This will give me easier flexibility when setting the engines back in.

fallguy1000
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Re: BlackFin to BlackPearl Arrr

Post by fallguy1000 »

Have you guys seen my gantraption?

I used it to pick and lift the Skoota hulls. Two steel i beams and two trolleys to pick up a 33' long hull and move it about z8-10' sideways.

It creaks. I picked up 1600# with it, but I was scared.
My boat build is here -------->

viewtopic.php?f=12&t=62495

jonnymac
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Re: BlackFin to BlackPearl Arrr

Post by jonnymac »

JDP wrote: Wed Nov 03, 2021 9:15 pm Thanks Jonnymac,

Wow nice plans and economical.
That is very similar to what I was thinking except I am going to use steel I-beam with a trolley system. This will give me easier flexibility when setting the engines back in.
I think in the lifting and handling world they apply like a 4x or 6x safety factor. the good thing is its easy to find specs for ibeam capacity.

JDP
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Re: BlackFin to BlackPearl Arrr

Post by JDP »

fallguy1000 wrote: Thu Nov 04, 2021 12:10 am Have you guys seen my gantraption?

I used it to pick and lift the Skoota hulls. Two steel i beams and two trolleys to pick up a 33' long hull and move it about z8-10' sideways.

It creaks. I picked up 1600# with it, but I was scared.
Gantraption…love it, that’s my middle name from now on!:lol:

Checking out your build, thanks for sharing.

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