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Multihulls
Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.
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R
Small trimaran with Tornado/Nacra 5.8 center hull
revintage
Dec 25, 2021
5
6
7
Replies
90
Views
29,604
Yesterday at 10:33 PM
SolGato
A
Asymmetrical hull for 3m planing cat?
Andrew Fish
Yesterday at 4:15 PM
Replies
0
Views
36
Yesterday at 4:15 PM
Andrew Fish
A
V
Bridgedeck centreboard why don't they work?
valery gaulin
Jan 10, 2017
36
37
38
Replies
558
Views
123,049
Yesterday at 3:53 PM
brian eiland
Daggerboards, Centerboards, mini Keels on Catamarans
brian eiland
Jan 16, 2026
2
Replies
23
Views
2,854
Yesterday at 10:34 AM
brian eiland
C
Single Dagger Board vs Double Boards
CatBuilder
Apr 26, 2011
5
6
7
Replies
101
Views
32,934
Saturday at 1:08 PM
brian eiland
M
Wave splitter on catamarans
Mark Peiffer
Nov 30, 2004
Replies
8
Views
12,041
Saturday at 10:46 AM
brian eiland
45' solar catamaran
yabert
Nov 25, 2024
18
19
20
Replies
295
Views
39,785
Friday at 9:10 AM
yabert
Capsize Prevention Devices
brian eiland
Jan 16, 2012
6
7
8
Replies
110
Views
21,632
Oct 4, 2026
trip the light fandango
T
M
Whale strike on a cruising cat: which compartment has to hold, and how do you test a bulkhead?
MrKyle44
Sep 27, 2026
Replies
9
Views
355
Sep 30, 2026
gonzo
L
80 foot cargo harryproa
lucdekeyser
Nov 15, 2020
11
12
13
Replies
182
Views
71,448
Sep 30, 2026
rob denney
R
O
Featured
Multihull Structure Thoughts
oldmulti
May 27, 2019
335
336
337
Replies
5,051
Views
1,774,971
Sep 29, 2026
HelmutSheina
J
homemade rudder steering problem
jdory
Jul 17, 2026
2
3
Replies
42
Views
3,133
Sep 28, 2026
HelmutSheina
S
Tiki 21 rudder thoughts
Swedewood
Sep 26, 2026
2
Replies
17
Views
731
Sep 27, 2026
Burger
B
Hybrid wing sail-used by Randy Smyth to win Everglades Challenge
Doug Lord
Nov 28, 2017
2
Replies
15
Views
12,719
Sep 27, 2026
brian eiland
C
Solar power catamaran prop size
caymantri
Sep 6, 2026
2
Replies
21
Views
1,069
Sep 27, 2026
yabert
M
Cat bulkhead design
montero
Mar 20, 2026
9
10
11
Replies
156
Views
12,153
Sep 25, 2026
HelmutSheina
Main-less rig
Spiv
Feb 10, 2008
10
11
12
Replies
177
Views
90,094
Sep 25, 2026
brian eiland
G
A Frame Masts
Gus7119
Jan 20, 2016
5
6
7
Replies
100
Views
28,737
Sep 22, 2026
brian eiland
B
open bridgedeck catamaran design
BobH
Apr 17, 2015
3
4
5
Replies
62
Views
41,046
Sep 18, 2026
brian eiland
J
Globemaster 26 Tri
John Charamella
Nov 22, 2017
Replies
5
Views
5,082
Sep 17, 2026
Goodiv
G
Solar Boat Designed to perform on Land as well as Water
SolGato
Sep 12, 2026
Replies
4
Views
379
Sep 16, 2026
gonzo
M
Farrier F32A - looking for Plans
Michael78
Apr 26, 2023
2
Replies
18
Views
10,361
Sep 13, 2026
JamesTingle
J
D
1968 H Nicol 35' Wanderer (longfloat)
Davodinkum
Oct 9, 2025
Replies
8
Views
1,489
Sep 11, 2026
Ben Smyth
B
Gitana 18
Dolfiman
Sep 11, 2026
Replies
1
Views
202
Sep 11, 2026
wet feet
W
G
20m carbon rig for Dazcat 1495 - rotating?
gregjohnson1024
Aug 12, 2026
Replies
4
Views
386
Sep 8, 2026
RyanN
L
Pontoon Boat Conversion to Sailboat
lowe210
Nov 15, 2008
3
4
5
Replies
69
Views
54,828
Sep 8, 2026
Jacks Playpen
J
Connecting the demi hulls
pavel915
Mar 22, 2023
2
Replies
22
Views
6,757
Sep 3, 2026
row
R
X
Center nacelles and wave pounding in cats.
xarax
Sep 1, 2007
4
5
6
Replies
79
Views
50,285
Aug 27, 2026
montero
M
J
Thoughts on extended Buccaneer 33
Jibster
Aug 25, 2026
Replies
5
Views
526
Aug 26, 2026
Jibster
J
P
Multihull in stages!
Pondlife
Sep 8, 2017
2
Replies
24
Views
6,605
Aug 23, 2026
montero
M
C
Multihull Bulkhead Refit Advice
Coastal Ogre
Mar 1, 2021
2
3
Replies
35
Views
13,124
Aug 19, 2026
brian eiland
F
DIY Inflatable Catamaran
FlyingMo
Jul 31, 2026
2
Replies
27
Views
2,078
Aug 14, 2026
marlinspike
M
G
how do cats handle big waves?
Guest1578132542
Jul 15, 2010
9
10
11
Replies
151
Views
53,485
Aug 7, 2026
montero
M
E
Poll
Poll
Which one out of these small multi-hull designs will be the best for my needs?
Eli
May 1, 2024
4
5
6
Replies
75
Views
26,589
Jul 27, 2026
tane
T
S
Cirro stratus "cirro" the first of the molds
SaltyYAK
Jul 19, 2026
Replies
3
Views
447
Jul 23, 2026
ALL AT SEA
A
G
Historical multihulls
Gary Baigent
Feb 26, 2012
89
90
91
Replies
1,357
Views
537,586
Jul 23, 2026
brian eiland
Planing Catamaran!
Doug Lord
Dec 4, 2009
4
5
6
Replies
77
Views
36,901
Jul 20, 2026
Greg Mc
G
Peter Spronk Catamarans
brian eiland
Mar 25, 2015
Replies
9
Views
14,165
Jul 18, 2026
brian eiland
T
My Trimaran and catamaran website
TrimaranMan
Jun 3, 2025
Replies
7
Views
2,832
Jul 16, 2026
BGW
B
O
Trimaran with a difference
oceancruiser
Dec 3, 2013
Replies
10
Views
8,970
Jul 13, 2026
tristanstanley58
T
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