The Boat Design & Boatbuilding Site
Home
Boat Design Forums
New posts
Search forums
Boat Design Directory
Boat Design Gallery
New media
New comments
Search media
Bookstore
Thanks to our Site Sponsors
What's new
Featured content
New posts
New media
New media comments
Latest activity
Log in
Register
What's new
Search
Search
Search titles only
Note
By:
Latest activity
Register
Menu
Log in
Register
Install the app
Install
How to install the app on iOS
To install this app on your iPhone:
Tap the
Share
button at the bottom of Safari.
Tap
...
if
Share
is not visible, then
Share
Tap
Add to Home Screen
Tap
View More
and scroll down if needed to see
Add to Home Screen
, then
Add to Home Screen
.
Tap
Add
on the top right to confirm.
(PWA)
Note:
This feature may not be available in some browsers.
Home
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
S
Skip Johnson
Senior Member
·
From Lake Tenkiller, Ok, usa
Joined
Feb 12, 2021
Last seen
Yesterday at 5:18 PM
Messages
342
Boat Design Gallery
2
Reaction score
194
Points
43
Find
Find content
Find all content by Skip Johnson
Find all threads by Skip Johnson
Latest activity
Postings
Boat Design Gallery
About
S
Skip Johnson
reacted to
Leo Lazauskas's post
in the thread
Navier Stokes Solved -
with
Like
.
A huge number of computational methods suddenly become more reliable. But that doesn't necessarily mean a Great Leap Forward (tm) for...
Yesterday at 8:32 AM
S
Skip Johnson
replied to the thread
Freeboard splashwell Panga hull
.
2 pound foam over time becomes a waterlogged mess. Fiberglass over XPS foam would work but epoxy is more expensive.
Yesterday at 8:30 AM
S
Skip Johnson
reacted to
Howlandwoodworks's post
in the thread
How did the old timers design hulls
with
Like
.
One of the boatdesigns members Eric W. Sponberg Naval Architect (retired) wrote: THE DESIGN RATIOS A Naval Architect’s Dozen (or...
Monday at 8:50 AM
S
Skip Johnson
reacted to
Howlandwoodworks's post
in the thread
How did the old timers design hulls
with
Like
.
You might check MIT,s https://mitmuseum.mit.edu/collections/collection/nautical
Monday at 8:29 AM
S
Skip Johnson
replied to the thread
Alternative to fiberglass for a Caledonia Yawl
.
I admire your friends convictions even though I don't have them other than a mighty oath to never use eps again. Yes it would require...
Sep 3, 2026
S
Skip Johnson
replied to the thread
Alternative to fiberglass for a Caledonia Yawl
.
It's a nice looking build. I second what @Rumars has said with some emphasis on filleting the laps. It's a bit more work but it is...
Sep 3, 2026
S
Skip Johnson
reacted to
oldmulti's post
in the thread
Multihull Structure Thoughts
with
Like
.
There is a Canadian who wanted to travel the inland waterways of Canada. A great part of the world. He started out with a narrow...
Aug 30, 2026
S
Skip Johnson
reacted to
philSweet's post
in the thread
Extruded spreaders?
with
Like
.
Traditionally, spreaders were wood, and they were all tapered. So it is partly a skeumorph in that it is the expected aesthetic. Also...
Aug 29, 2026
S
Skip Johnson
replied to the thread
Polypropylene honeycomb panels for hull construction?
.
I've been there and seen the boat it is an impressive build.
Aug 28, 2026
S
Skip Johnson
reacted to
mineral's post
in the thread
My modular aluminum catamaran build: Long-time lurker saying thanks!
with
Like
.
Hi everyone, I am a member of BoatDesign.net; I’ve read and learned a great deal from your discussions over the years without ever...
Aug 28, 2026
S
Skip Johnson
replied to the thread
My modular aluminum catamaran build: Long-time lurker saying thanks!
.
Likewise more pictures and info please, a really impressive project.
Aug 28, 2026
S
Skip Johnson
reacted to
revintage's post
in the thread
Small trimaran with Tornado/Nacra 5.8 center hull
with
Like
.
Had to use Sail Kote to manage to hoist the largest of the mains I have. The rudder system is ready and the self tacking jib track in...
Aug 28, 2026
S
Skip Johnson
replied to the thread
Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up.
.
For prototype foils you might look at FRP (G10) it's almost as strong and stiff as aluminum and far easier to work. The parallel...
Aug 26, 2026
S
Skip Johnson
reacted to
tropostudio's post
in the thread
Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up.
with
Like
.
If you already have the 3D printer going, I'd recommend looking into using it to make molds for composite foils. If you could iterate...
Aug 26, 2026
S
Skip Johnson
reacted to
Urepedese's post
in the thread
Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up.
with
Like
.
Tropostudio I gave up on trying to make the software work in 3D. But I often explain to people my brain works in 3D and I can stitch the...
Aug 24, 2026
Loading…
Loading…
Loading…
Home
Back
Top