Search found 6616 matches

by fallguy1000
Thu Oct 21, 2021 6:04 am
Forum: Core Materials: Plywood, Foam core and Honeycomb
Topic: Mycell 80 and Corelite 450 for TX18 build
Replies: 5
Views: 48

Re: Mycell 80 and Corelite 450 for TX18 build

The only comment I will make is the Mycell 80 used as a stringer offers very little structurally. It will really only be operating as a former for a solid glass stringer. For this reason, the only tangible benefit is that it won't rot. But it doesn't do much structurally. I would prefer to see the s...
by fallguy1000
Wed Oct 20, 2021 10:15 pm
Forum: Power Boats
Topic: TW28 Scantlings
Replies: 22
Views: 702

Re: TW28 Scantlings

Up to you. I'd do both. It is a multi-year project. Make it a hair bigger if you can afford it. Slips for longer sometimes wider boats cost more. Wider boats may result in problems permitting for road travel. Build cost per foot for a trawler will come in around $3000/ft , so 3' extra is about 10 gr...
by fallguy1000
Wed Oct 20, 2021 8:12 pm
Forum: Core Materials: Plywood, Foam core and Honeycomb
Topic: Mycell 80 and Corelite 450 for TX18 build
Replies: 5
Views: 48

Re: Mycell 80 and Corelite 450 for TX18 build

Corelite 450 is a substitution for coosa. To me, it is not as good as coosa BW, but I used it on my two small transoms for 90hp engine. Mycell 80 is 1.06 nominal vs Gurit M80 of 1.09 MPa nominal shear. So, they are nearly comparable. I see the Mycell shows stronger compressive strength, and a cursor...
by fallguy1000
Wed Oct 20, 2021 7:56 pm
Forum: Power Boats
Topic: TW28 Scantlings
Replies: 22
Views: 702

Re: TW28 Scantlings

It is likely that scaling will result in some errors. The best way to scale will be to spend a lot of time reading and reviewing the plans and knowing what will change before you enter the build phase. You need to anyhow for your materials order. So, once you get the plans, really think through how ...
by fallguy1000
Wed Oct 20, 2021 7:49 pm
Forum: Power Boats
Topic: TW28 Scantlings
Replies: 22
Views: 702

Re: TW28 Scantlings

If a boat is 108" wide and 28' long and 108" deep; it is not scaled 10% n all directions because t would then be nearly 120" tall and the gains would be in the cabin top and you'd be adding 11" to cabin heights which is silly. But Tom's point is not invalid either. If you expand ...
by fallguy1000
Wed Oct 20, 2021 9:12 am
Forum: Power Boats
Topic: TW28 Scantlings
Replies: 22
Views: 702

Re: TW28 Scantlings

Boats are scaled in length and beam; not height.

In order to change the height of a boat; you must make accomodations for the increases by reducing weights up higher.

Otherwise, the boat gets heavier on top which can result in many issues..instability, rolling in a seaway, pitching, etc
by fallguy1000
Wed Oct 20, 2021 12:25 am
Forum: Cracker Larry's Corner: Boat Repair and Rebuild Support
Topic: 1986 19' Atlantic rebuild
Replies: 5
Views: 85

Re: 1986 19' Atlantic rebuild

Good catch Tom. That tank is about 20% of what is really needed. 60 gallons is a better minimum. When you get the sole off, you'll get a better idea of what will work. I think Tom might have been a bit generous. When you open the 115 up some; not going to be getting 7-8mpg. The wot mileage will be w...
by fallguy1000
Wed Oct 20, 2021 12:19 am
Forum: Power Boats
Topic: TW28 Scantlings
Replies: 22
Views: 702

Re: TW28 Scantlings

I'm not sure what you have ahead of the helm station, but by moving the head back to the opposite side of the kitchen, the entire settee can get better views, and you can probably make the bed bigger. If the roof slopes forward some, the shower further aft is also more height and you don't need heig...
by fallguy1000
Tue Oct 19, 2021 9:43 pm
Forum: Cracker Larry's Corner: Boat Repair and Rebuild Support
Topic: 1986 19' Atlantic rebuild
Replies: 5
Views: 85

Re: 1986 19' Atlantic rebuild

Good luck. We'll do what we can to help.
by fallguy1000
Tue Oct 19, 2021 9:39 pm
Forum: Cracker Larry's Corner: Boat Repair and Rebuild Support
Topic: Jaysen's Helms 24
Replies: 400
Views: 12306

Re: Jaysen's Helms 24

Use a different term than bonding. Not being dense. Just want to answer the question correctly. Also, I’m 100% sure the boat is not right. Are all the things that are metal and below the waterline attached to a/the grounding system? Obviously one is not. Is the outboard a battery start or pull? Is ...