Search found 27202 matches

by jacquesmm
Mon Nov 11, 2019 1:12 pm
Forum: Power Boats
Topic: FS 17 DWL
Replies: 6
Views: 180

Re: FS 17 DWL

The listed DWL is arbitrary: I (the designer) can put it wherever I want but as always, I select a weight that will be close to the most common use plus a safety margin. In the case of a small boat, it can be tricky: raising the DWL will raise the cockpit sole and affect the stability. Your math loo...
by jacquesmm
Fri Nov 08, 2019 1:33 pm
Forum: Builder's Power Boats
Topic: FS18 Straight Sheer, Round Chine
Replies: 151
Views: 17542

Re: FS18 Straight Sheer, Round Chine

How did you pour it? With a syringe?
by jacquesmm
Thu Nov 07, 2019 4:48 pm
Forum: Power Boats
Topic: LM18 Madison Wi Building questions
Replies: 119
Views: 25748

Re: LM18 Madison Wi Building questions

The cleats are 1x1 nominal which is a 3/4" square batten but you can make them as thin a 3/8" by cutting strips from left over plywood. Along the hull sheer, inside, I would use strips between the frames. There can be a gap, not need to bevel anything. Those cleats are visible on the construction dr...
by jacquesmm
Thu Nov 07, 2019 10:14 am
Forum: Sail Boats
Topic: SB18, CB position vs bulb keel position
Replies: 1
Views: 322

Re: SB18, CB position vs bulb keel position

The CLR of a CB will have more lead than on a fixed keel. The lead is the difference between the sail CE and the keel (CB) center. Plus, I consider that the builders who choose a bulb keel are performance oriented and will often use the spi therefore, that sail CE will, most of the time, be more for...
by jacquesmm
Wed Nov 06, 2019 1:48 pm
Forum: Power Boats
Topic: Question for Jacques or Richard Woods
Replies: 2
Views: 119

Re: Question for Jacques or Richard Woods

The Skoota has probably more displacement but, for your program, I would pick the Skoota and not even consider the PC24. Each boat is designed for a program. The structure of each boat is very different. To try to adapt the PC24 would produce a poor result. The PC24 is an excellent open pontoon boat...
by jacquesmm
Wed Nov 06, 2019 11:14 am
Forum: Builder's Power Boats
Topic: Central FL OB15
Replies: 52
Views: 6139

Re: Central FL OB15

Yes and No. You start with one layer of tape and later you will add the overlaps of the wide fabric. This gives you 3 layers outside. With the inside layers, this creates a strong and stiff beam. The scantlings are in the new notes that I rewrote last month. The previous scantlings were identical bu...
by jacquesmm
Mon Nov 04, 2019 9:49 am
Forum: Builder's Power Boats
Topic: Jeffs FS14 LS
Replies: 48
Views: 1596

Re: Jeffs FS14 LS

Scale everything by the same factor in CAD. It's easy and safe.
No need to increase the hull skin thickness but OK to go up one notch with the stringers.
by jacquesmm
Mon Nov 04, 2019 9:43 am
Forum: Power Boats
Topic: Would a 8-10 gal baitwell be OK?
Replies: 13
Views: 447

Re: Would a 8-10 gal baitwell be OK?

Not larger than that please. Think of the surface effect. 8 gallons is large for that size boat. Make very large radius corners for better circulation.
by jacquesmm
Mon Nov 04, 2019 9:40 am
Forum: Builder's Power Boats
Topic: C19 in Richmond, VA
Replies: 58
Views: 16929

Re: C19 in Richmond, VA

2 gallons of EazyFillet should be enough.
Do not use too much putty. A 1/2" radius is fine. The fillet's job is to allow the fiberglass to take a nice turn around the corners. 1/2" is more than enough for biaxial 12 oz. and 3/8 is sufficient for small corners like furniture done with woven glass.
by jacquesmm
Sat Nov 02, 2019 10:53 am
Forum: Questions before purchasing the plans and announcements..
Topic: TW28 build in steel?
Replies: 7
Views: 1456

Re: TW28 build in steel?

I missed your location: Oman.
Epoxy-plywood is not as difficult as steel but I understand your choice now.