Bulbous bows

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OrangeQuest
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Re: Bulbous bows

Post by OrangeQuest »

Dougster wrote: Sat May 27, 2023 8:57 am I'm in Barras' boat---got no clue but watch each post figuring it'll come clear as it develops. Very fun thread.

Dougster
Also in the same boat. It is interesting.
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

TomW1
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Re: Bulbous bows

Post by TomW1 »

I am starting to have an idea of how these are going to work from the lines drawn on the hull. But as interested as the others. Keep us posted as things progress.

Tom
Restored Mirror Dinghy, Bought OD18 built by CL, Westlawn School of Yacht Design courses. LT US Navy 1970-1978

fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

Well, today, I waxed and sprayed the mould with pva...

Trying to come up with a wetout plan that won't peel away the partall#10 too bad.

It will be 11 layers of glass..just trying to determine a layout; the composites guy threw in the towel

The blue line is the center of the BB...the knuckle..
IMG_0524.jpeg
Last edited by fallguy1000 on Sun May 28, 2023 2:36 pm, edited 1 time in total.
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fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

It has to be 7000gsm?

So, that is some combination of

600g biax
600g woven roving
200 gram cloth

I'm going to cut the pieces 22.5" x 27.5" at 141" long, so can just squeak out two pieces in each 141"!

The wr might be 60, so some waste..cloth same iirc.

Anyhow, no clue about wetting out roving.

The cloth, I might just fit in if the thing seems soupy. But a lot of roller work is going to mess with the partall...

And 8mm will heat up, so probably an all day affair to get it to cool some..fan will help.
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fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

I'm guessing my $1600 transducer will be in the wash of the BB :(
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OrangeQuest
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Re: Bulbous bows

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fallguy1000 wrote: Sun May 28, 2023 2:37 pm I'm guessing my $1600 transducer will be in the wash of the BB :(
I thought the flow under a bulbous bow was very calm and straight?
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

OrangeQuest wrote: Sun May 28, 2023 8:32 pm
fallguy1000 wrote: Sun May 28, 2023 2:37 pm I'm guessing my $1600 transducer will be in the wash of the BB :(
I thought the flow under a bulbous bow was very calm and straight?
Maybe, but it is vee shaped..
My boat build is here -------->

viewtopic.php?f=12&t=62495

fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

Today, I laminated 6 layers of glass into the mould. Not sure why, but the thing is drinking resin like a sailor does rum.

I'm kinda tired st 4:45pm...started at 9:30...

Two layers of cloth and two layers of 18oz biax
IMG_0525.jpeg
Two more layers of woven roving 18 oz
IMG_0526.jpeg
Cut almost all the rest...7 layers to go on this one

Gotta order more epoxy, after the change to all glass, I'm way short and trying to make Jeff some more money I guess.
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OrangeQuest
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Re: Bulbous bows

Post by OrangeQuest »

Looks like you are making really good progress. But if memory serves me...You over work and more things on you have to be replaced or doctored. Hope you are relaxing...as best you can, waiting on more epoxy for a few days.
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

fallguy1000
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Re: Bulbous bows

Post by fallguy1000 »

Well, this has 13 layers of glass.
IMG_0529.jpeg
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