"DIY-Tris.com"

A Web Site For Do-It-Yourself Small,

Homemade Trimarans

 

Presented by "Dr. Frank" Smoot, and dedicated to DIY boat builders everywhere!

 

 

The 24-Footer!

 

A Cat-Ketch Called "LocoMotion"

 

(Here's a shot of the new 24-footer on the upper right corner of this page. )

 

[1-minute YouTube video at http://youtu.be/yAj2bYIQMrM ]

 

[1.5 minute YouTube video at http://youtu.be/rXvkl7UCmNI ]

 

 

I have to admit, this boat was inspired by the Everglades Challenge. I originally set out to make a longer, more seaworthy boat than all the little 16' trimarans I'd build up to now. I mean, they were great boats and all, but they just weren't all that comfortable on seas over 2' or so.

 

I didn't realize what a big step it was from 16' to 24'! But boy is this a sweet boat, and every so much more seaworthy than any of the 16-footers. Even so, we're not quite ready for the EC yet. Here are the basic specs:

 

LOA = 23' 9"

Beam of center hull at sheer = 30"

Beam of center hull at waterline = 24"

Overall beam = 18' 2"

Sails = 2 X 85 sq. ft.

Weight all up = approx 360 lbs.

 

The maiden voyage revealed several shortcomings. Actually, it handled like a pig. The rudder (borrowed from No Commotion) was way to small and not even entirely in the water. The leeboards wouldn't stay down, and couldn't even be lowered all the way. And the amas (see the "Planing Amas" page) seemed like they needed some fins / skegs so we could have adequate lateral resistance to maneuver in shallow water.

 

Lo and behold, once all these changes were made, it became a great boat! It even points well and comes about quickly and nimbly. But I do think it needs better sails - higher aspect ones. Because, as it is, the main tends to backwind the mizzen a bit too much for my taste. So I'm inventing a new kind of sail to solve the problem. Star tuned...

 

Here below are 50 photos showing the highlights of everything from flat plywood panels (3mm) to happy sailing!

 

 

1

Takes a really long workbench

to build a 24' boat!

 

2

 

3

 

 

5

 

Just bend the ply until it looks like the boat you want!

 

6

 

7

 

8

 

9

My first ever boat with bulkheads - 5 of them!

 

10

Two coats or polyurethane varnish on the sides. I never bother with epoxy here.

 

11

Now the "false" bottom goes on.

 

12

 

13

 

14

 

15

8" of foam applied. Now the real work starts...

 

16

 

17

 

18

Starting to look more boat-like...

 

19

 

20

 

21

Amazing the contours you can get with a sculpt-able medium.

22

Now it's all glassed...

 

23

 

Hey, get that bum outta there!

 

24

 

This mast step ain't goin NOwhere!

 

   

25

26

 

27

 

28

 

   

29

This took a bit or noodling, but now the tandem leeboards are linked together.

 

30

 

31

32

 

33

 

34

 

35

Finally it looks like a real hull!

 

36

 

37

 

 

38

Looks sleek. I hope it goes as slippery as it looks.

 

39

 

   

40

 

Leeboards painted and ready for final installation.

41

 

42

 

Lots of stuff to do from the driver's seat.

 

43

 

   

44

   

45

 

The 24-footer kinda dwarfs my 16' folding trimaran.

   

46

Wife Laura thinks it's a pretty darn big boat...

 

47

 

   

 

48

The sails we had, though they'll probably be upgraded when I can design and build some better ones.

 

49

 

Sure is fun to sail this baby!

 

 

50

 

On Shell Key Preserve beach, near Fort DeSoto, Florida. Beautiful!

 

 

 

Back To DIY-Tris.com Home Page