OB19 build in Texas - I accidentally deleted my gallery They're trying to restore.

[peter-curacao]

Looking good let the mixing begin

[Steven]

Spent a few hours trimming and shimming to get everything lined up to my liking. Glued between the stitches. Tomorrow morning I'll cut the stitches and glue the gaps. Sunday or Monday will be glass day.

[Steven]

Cut the stitches, pushed it outside and rounded over the edges. Thought I'd do the glass this weekend, but it will be raining tomorrow, so it will have to wait.



Next to the land barge for a little size perspective.

[Steven]

Getting close to Glass day. Doing one more check around to make sure everything is in order. Checking flatness of aft bottom panels. Found a problem on the port side bottom panel. Somehow, after checking and double checking, I managed to not get the the botom panel flat to the frames. There was a hump at the transom bulkhead from 1/3 way up from the chine down to the chine. I say 'was' because I sawed the hull side to bottom panel joint open from the transom 4' forward. The panel laid down flat with a little weight and I reglued the joint. So tomorrow I'll round over the joint and prep for a shoot through the hull transucer. Gonna rout a circular recess 6" in diameter 1/2 way through the hull panel. I'll glass it in with biax the night before I do the hull glassing. After the flip, I'll rout a 4" diameter hull just into the glass and fill it with biax and resin.

[Fonda@kauai]

Can you explain more about what you're gonna do for the transducer? You plan on there being pure glass for the transducer to shoot through right?
edit: okay I get it now I would be kinda scared to router that after the bottom's been painted. I cut the hole all the way through, put a temporary piece of backing covered in visqueen under it, and filled it in one shot. Maybe I'm missing something though?

[Lucky_Louis]

Hey Fonda, don't worry, you're not missing anything. That's exactly how to do it. I only made the hole 2" in diameter and that's been plenty. Clean sounding to 600' at 25 knots. Not sure why Steven is making the hole so big and only going halfway through.

I just drilled the hole, duct taped across the inside of the hull, mixed up a cup of epoxy, and made up a mush of loose biaxial fibers until it was thick, and filled the hole in one shot. Ground it flat with Mr. Belt Sander, and glassed over normally.

[Cracker Larry]

I did mine just like LL, works like a champ

[Steven]

Can you explain more about what you're gonna do for the transducer? You plan on there being pure glass for the transducer to shoot through right?
edit: okay I get it now I would be kinda scared to router that after the bottom's been painted. I cut the hole all the way through, put a temporary piece of backing covered in visqueen under it, and filled it in one shot. Maybe I'm missing something though?

Well, my thinking was that I would end up with a glass filler that overlapped a recess in the ply. I planned on routing from the inside down to the glass I added in the bigger hole from the outside. The inner hole would be just big enough for transducer. Cleary, based on LL and CL replies I was way over thinking the problem. I will be taking the much simpler path of drilling and filling. Just got my order of glass fibers, so I'll mix up a mush.

LL, did you dam up and create a wedge that was level to the water line so the transducer is shooting straight down and not at the angle of the hull?

[Cracker Larry]

Since mine has a flat bottom, it obviously wasn't necessary, But that's how I would do it with a V hull. Just put a plastic collar around it, like a butter container, tape around the outside and pour some goo in it. If the boat is level, gravity will level the thickened resin.

You'd never get a good reading if your Xducer was shooting off to the side.

[Lucky_Louis]

I cut a piece of 3" PVC, glued it to the hull. Poured in straight epoxy to get a level suface. Mounted the transducer about 1/8" above epoxy surface. Then I filled the well with mineral oil to completely submerge the transducer. Finally, capped the well and caulked around the cable.