Search found 527 matches

by lncc63
Wed Apr 28, 2010 11:11 pm
Forum: Sail Boats
Topic: SB-18 bowsprit
Replies: 13
Views: 1225

Re: SB-18 bowsprit

I'm having the same problem Evan. Would this work: aluminum pipe 48 mm dia. 3.8 mm wall thickness?
by lncc63
Wed Apr 28, 2010 10:41 pm
Forum: Sail Boats
Topic: SB-18 U bolts
Replies: 9
Views: 1718

Re: SB-18 U bolts

I think Fragi is asking for the steps for installing the U-bolt at the bow. The drawing clearly shows the location and the details however the steps to get it there can be a puzzle. The way I plan to do it is I will install the U-bolt while the deck panels are not yet glued. Then when I install the ...
by lncc63
Tue Apr 13, 2010 8:21 pm
Forum: Small Boats
Topic: CR13 in foam
Replies: 1
Views: 208

CR13 in foam

Someone is selling Diabs 60, 80 and 200 kg/m3 foam in 6, 10, 12 and 19mm thicknesses.

Would a foam CR13 weigh significantly less than one built with Meranti plywood? What if it were vacuum bagged?

Can I have the scantlings for a foam version?
by lncc63
Tue Apr 13, 2010 8:16 pm
Forum: Resins, Fiberglass and Paint
Topic: Acceptable epoxy measuring tolerance?
Replies: 2
Views: 353

Acceptable epoxy measuring tolerance?

Hi. When measuring out small amounts of epoxy I use a jeweler's scale which has a 0.1g resolution. Last night I measured 14.3 g of hardener which I calculated would need 34.3 g of resin. It is not easy pumping such a precise amount. Last night I got 34.9. Thus, my question. Another reason is I want ...
by lncc63
Sat Mar 27, 2010 8:07 am
Forum: Builder's Sail Boats
Topic: SB18 in the Philippines
Replies: 81
Views: 22566

Re: SB18 in the Philippines

Great to hear it Greg. Today I put in the starboard forward "quarter" of the cabin sole, sanded down the seats, and did the forestay reinforcement. Not much progress I know, been under the weather for awhile ... and to be completely honest, have taken on another project - a 17-foot trimaran :) ... m...
by lncc63
Sat Mar 27, 2010 7:37 am
Forum: Sail Boats
Topic: SB18 - Size of lift posts
Replies: 1
Views: 299

SB18 - Size of lift posts

If I did not want to use the mast and boom to lift the bulk keel up, what size of aluminum pipe should I use in a A-frame? I have an aluminum pipe that is 48mm in diameter with a 3.8mm wall thickness, is this ok? I've a neat solution for storing the poles: I'll put holes in Frame C between the cabin...
by lncc63
Thu Mar 18, 2010 10:24 pm
Forum: Sail Boats
Topic: rudder template
Replies: 3
Views: 442

Re: rudder template

Here are pictures of the rudder build: http://i57.photobucket.com/albums/g227/lcasambre/SB18/Photo-0015.jpg I used the method Greg shows in his build thread. Cut slots to the correct depth and paint the bottom of the slots: http://i57.photobucket.com/albums/g227/lcasambre/SB18/Photo-0006.jpg Plane a...
by lncc63
Thu Mar 18, 2010 10:16 pm
Forum: Sail Boats
Topic: rudder template
Replies: 3
Views: 442

Re: rudder template

The drawing is pretty small Fragi to expand so I used again a program to make the templates. The rudder is a little bit more complicated that the bulb keel strut because the cords at the top and bottom of the blade are not the same. The rudder is however simpler than the centerboard because the cord...
by lncc63
Tue Mar 16, 2010 4:52 am
Forum: Sail Boats
Topic: CB keel template
Replies: 4
Views: 619

Re: CB keel template

I assume you are talking about the Centerboard, Fragi. In which case, there are no templates in the plans. The reason is the outline (cord) of the foil is varying, not in a simple way, so templates would be "involved". They would be involved because you'd need a series of them and you need to interp...
by lncc63
Mon Mar 15, 2010 10:39 am
Forum: Sail Boats
Topic: SB 18 CB trunk
Replies: 2
Views: 376

Re: SB 18 CB trunk

The plans say as you describe Fragi. I however deviated here and just made it touch because I was afraid the hull might bend out of shape. Not really sure there is a penalty here. I figure it is ok because some of the other designs here are specified that way.