Search found 28126 matches

by jacquesmm
Fri Jul 01, 2022 10:13 am
Forum: Power Boats
Topic: GF14/GF16
Replies: 1
Views: 47

Re: GF14/GF16

No, sorry. You need something for stiffness.
You could build it like a Carolina Skiff: with a very thick bottom, 4" of foam with longitudinal stiffeners in it. It would make the cockpit too shallow and increase cost.
by jacquesmm
Thu Jun 30, 2022 2:47 pm
Forum: Small Boats
Topic: C12 Question
Replies: 5
Views: 333

Re: C12 Question

For the fiberglass: what you show is fine. Don't worry about the gaps. You could use thinner glass but you have is fine. For the pintles (rudder pivots), 3/8" diameter is fine. Build the rudder first, put your pintles and gudgeons on dry and check against the transom. Offset one of the gudgeons...
by jacquesmm
Mon Jun 20, 2022 6:43 pm
Forum: Sail Boats
Topic: CK17 Rubrail dimensions
Replies: 4
Views: 225

Re: CK17 Rubrail dimensions

It must be somewhere on the plans but anyway, let's build at a minimum 0.75" wide and 1" high. For a very sturdy one, go to 1" thick by 1.5" high.
When sailing hard, you will grab that rail often and for that reason, I like the thick one.
Sorry if it is not clear on the plans.
by jacquesmm
Wed Jun 15, 2022 11:23 am
Forum: Small Boats
Topic: C12 Question
Replies: 5
Views: 333

Re: C12 Question

It should be included in the package. It is a simple drawing showing how to cut and frame a hatch for a locker in any small boat seat.
Reid has a temporary copy that I created for you, email him please.
by jacquesmm
Mon Jun 13, 2022 3:17 pm
Forum: Power Boats
Topic: LB26
Replies: 434
Views: 22970

Re: LB26

The plans are not clear about that, sorry. The section at frame D shows a line all across as if the cockpit sole extended all the way to the sides but the cockpit sections show a "hanging" cockpit sole. Each way has pros and cons. The full sole extending all the way across is strong but re...
by jacquesmm
Mon Jun 13, 2022 9:57 am
Forum: Power Boats
Topic: new build GT Cruiser 23
Replies: 145
Views: 7501

Re: new build GT Cruiser 23

Tool or not, you can't have voids in there, Fill it with putty please.
by jacquesmm
Sat Jun 11, 2022 12:50 pm
Forum: Power Boats
Topic: new build GT Cruiser 23
Replies: 145
Views: 7501

Re: new build GT Cruiser 23

I would not agonize over the exact shape and size of that radius. The putty is just part of the sandwich core, the strength comes the tape and later, from the wide fabric overlaps. As long as there is no air in the seam, you will be fine. The main point to focus on is to avoid air bubbles. Even a ve...
by jacquesmm
Tue Jun 07, 2022 3:15 pm
Forum: Small Boats
Topic: Centre of Lateral Resistance
Replies: 9
Views: 289

Re: Centre of Lateral Resistance

This is a lot of calculations for something that will change all the time but I admit, it's part of the boatbuilding fun to speculate about those things. :D The CLR is 2D but not all parts of sail pull the same way, for that reason and For even more fun, I recommend to add an ingredient: lead. Lead ...
by jacquesmm
Tue Jun 07, 2022 11:27 am
Forum: Power Boats
Topic: LB26
Replies: 434
Views: 22970

Re: LB26

It depends. Fort example, a 8" wide (20 cm) side deck along the cockpit, with braces spaced 1 meter, will flex exceedingly but the same side deck with and integral coaming will be very stiff and you could walk on it.
by jacquesmm
Mon Jun 06, 2022 5:01 pm
Forum: Power Boats
Topic: OD16 Keel side
Replies: 4
Views: 142

Re: OD16 Keel side

I don't have the plans with me but there are two offsets for very large parts. The smallest one is the keel (bottom panel).
There is another way to check which part is which: the width of the transom, along the bottom edge, must match the keel width at the transom.