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Pilothouse Catamaran Build By Eastward Boats

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Pilothouse Catamaran Build By Eastward Boats

Old 01-14-2019, 06:37 AM
  #41  
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Originally Posted by BassnBays View Post


I have to chime in on this one. I donít mind a good debate or another educated opinion but here are a few facts and a short video:

Our hulls original design is the Kevlacat out of Australia and if you think you West Coast guys go out in rough conditions, do a little research and see what an average day is for the guys Downunder. Catamarans dominate the Australian market for a reason, they donít have the nice inlets we enjoy in the U.S., they have to cross bars to get offshore.

The origional Kevlacat was always built as a forward cuddly, with an extreme amount of weight forward. Her hull design compensates for that much better then many of the cat designs built in the U.S. To my knowledge thereís only one Center Console built on the 30í (the way we measure in the U.S.) Kevlacat hull, my demo boat. All the rest are forward cuddles.

Before you watch the video, let me put out a disclaimer so this build thread doesnít get off track. The boats in this video are meant to show the extreme conditions that this type of hull can handle, not all are Kevlacats, but most are. Enjoy the video and I thank all of you who subscribe to this thread and follow Karlís dream come alive.

https://vimeo.com/252821068


Wow, that video is nuts! Those boats look kinda goofy to my gulf-coast eye but hard to dispute their seaworthiness.
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Old 01-14-2019, 02:23 PM
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Originally Posted by jwlsh View Post
Dave, would it be possible to get a diagram of the layout for the pilot house design? Iím looking to see if thereís a possibility of having it be a walkaround and would like to sketch up some ideas.
Sure, here's a few different layouts. If you need me to email them to you, let me know.




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Old 01-14-2019, 02:28 PM
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Originally Posted by noanoa View Post
Wow. That video is epic. And I cannot believe it didnít swamp when hit broadside in that one scene. Did they put ballast in these rescue Cats down under? They seem uncommonly stable. If not that is just flat out impressive.
Op thanks for sharing your build. We know you wonít let some misinformed wannabe put a damper on us Cataholics!!
As far as I know, they didn't have any additional ballast or any type of SeaKeeper. Although it appears that the captain of that boat may have had a pair of ballast.......
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Old 01-14-2019, 03:13 PM
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Originally Posted by BassnBays View Post
As far as I know, they didn't have any additional ballast or any type of SeaKeeper. Although it appears that the captain of that boat may have had a pair of ballast.......
And they were seated, not standing and hanging on.
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Old 01-14-2019, 04:55 PM
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Originally Posted by BassnBays View Post
Sure, here's a few different layouts. If you need me to email them to you, let me know.




God she's big lol!, Many thanks, now to have some fun with Sketchup!
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Old 01-14-2019, 05:41 PM
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Originally Posted by SaltyDawg86 View Post
I can't wait to see how this turns out.

At the risk of sounding stupid, will this be a pilothouse cat that you can fish (something like a Parker setup) or a cruising set up? The thought of a fishing cat with a pilothouse sounds awesome. I'd love to own one and they're hard to find.
This will be a fishing catamaran boat. The CC demo boat has a top speed of 55mph and cruises at 33mph with a 2.3 mpg fuel burn. I would imagine my pilothouse will lose a few basis points off the top speed as well as fuel burn due to weight and aerodynamics.
I totally agree with you that this will be an awesome fishing cat. I am trilled for the opportunity to build this boat.
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Old 01-14-2019, 07:30 PM
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i crew up fishing Cats in South Africa surf launching in quite ridiculous conditions. Cats dominate there as well, including areas on the west and east coast of Africa where there is no ability for a slip.
This boat is perfect for so many different applications, especially the cuddy and pilot house when considering surf launching and horrible conditions.
Google surf launching and see how crazy it gets not only going in but coming back beaching your boat with a high tide and a nasty shore dump can get hairy really fast.

Keep up on the good work! i love what you have presented so far!
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Old 01-14-2019, 08:18 PM
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Originally Posted by noanoa View Post
Wow. That video is epic. And I cannot believe it didn’t swamp when hit broadside in that one scene. Did they put ballast in these rescue Cats down under? They seem uncommonly stable. If not that is just flat out impressive.
Op thanks for sharing your build. We know you won’t let some misinformed wannabe put a damper on us Cataholics!!....


There are probably Cataholics (as such) in the US but more for what they are and not for what they did and were originally designed for, very few in the US would have ever been in Cats that size in conditions like that. But just to clarify that video and some of the points made.

So as not to get off track ALL Cats in that video are Sharkcats, generally very early 70's designs and most were 20 footers which standout a mile by their bulk. If you take a close look along the side of the hull about midway above the water you will notice a fairly hefty strake (for want of a better term) that sort of held the sides together, that strake is something like 5" square, the other thing that highlights the era is the rake and shape of the stem. Anyway definitely no ballast, just FG, layer upon layer of FG, no exotic material when they were built and nothing in today's thinking re any form of laminate schedule, polyester resin came out of a 44 gallon drum to hold the 2 main ingredients together, CSM & Woven Roving. The only difference between these "rescue" Cats and the Cats used for fishing purposes was one had a word painted on the side.

Typically while you had both engines in conditions like that you were fairly safe, loose 1 engine and it became quite interesting, loose both engines and it was fairly inevitable what would follow and there used to be some quite graphic footage around of the inevitable. The "City of Randwick" footage with everybody seated would have been an afternoon pleasure cruise, there wasn't a lot of time to sit down going through a bar.

From another post re brackets, none of those boats had brackets or pods for that matter, everything was outboard wells at that time, KevlaCat some years latter made pods work on every general KC model made. KC was a customized builder and not all KC's were cuddies, especially some of the fisheries pursuit boats.





Last edited by Kerry; 01-14-2019 at 08:23 PM.
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Old 01-15-2019, 07:27 PM
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Here's a picture of the core cut and fit for the cap. It will be encapsulated with 2 layers of 4108
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Old 01-16-2019, 12:20 AM
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Stupid should hurt.

Google Kevlacat Austrailia and see that about ZERO percent of them are CC. This design or similar is boat of choice in some of the roughest bar entries on the planet. Especially rescue boats are all this design.
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Old 01-16-2019, 12:29 AM
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Originally Posted by Freshpow View Post
Hi All,
I am very excited to announce that Dave East of Eastward Boats is building me a semi custom pilothouse power catamaran to be used in the San Francisco Bay and Northern California coastline. The build will be minimally sparse due to budget restraints, I will add to it in the years to come as my budget allows. The Horzion 3000 is on Dave's website: Eastward Boats Inc Home. The Hull length is 30'3" plus an Armstrong engine bracket then engines, the Beam is 9'3," the Draft is 19," not sure of the weight as this will be his first pilothouse, the power will be twin Evinrude E-Tec G2 250hp, Fuel capacity is 300 gal total with dual tanks.
If anyone lives or works near Eastward Boats in Port St. Lucie Florida feel free to stop by to snap a few photos for me from time to time as it will be difficult for me to see the progress on a day to day basis since I am in California. As Dave sends me photos I will post them for your enjoyment.
Here are a few photos from the very beginning of the build.
Thanks for following.


4108/1.5oz/Coremat cloth for hull


Coosa bulkheads cut and ready for hull
I've been waiting on your build to start. I plan on similar for hull #7. Towable cabin fold down tower. Up in the air on engines.

You should know with etecs for 6k you can get the advanced joystick controls. That gives you the position holding feature. You can order the engines prepped for it and add later. If not ordered that way you don't have the option. I think they use different ECU.

I'm sure to drop by and see your build.

Are you trailering, dry storing or keeping in a slip?
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Old 01-16-2019, 01:31 AM
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I was giving that option a lot of thought as well. However, maneuvering cats with the wide engine separation is fairly easy, so the iDock is an expensive 'anchor' function. I have yet to talk to Dave about it, but I am thinking about a 36V trolling motor mounted off the rear of the extended motor bracket. Pull two pins and it easily stores in a floor box or under the front deck. Don't need the 6 or 7 foot shaft option hanging off the front. Add lithium batteries that will last the life of the boat, a 'smart' recharge controller that will keep them topped off as you move around and it's about 1/2 the iDock cost.
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Old 01-16-2019, 04:53 AM
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Originally Posted by Jumpsummo View Post
Stupid should hurt.

Google Kevlacat Austrailia and see that about ZERO percent of them are CC. This design or similar is boat of choice in some of the roughest bar entries on the planet. Especially rescue boats are all this design.
ouch



They were rare but a few 5.2 and 6.2ccís were built.
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Old 01-16-2019, 05:36 AM
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Originally Posted by manethon View Post
i crew up fishing Cats in South Africa surf launching in quite ridiculous conditions. Cats dominate there as well, including areas on the west and east coast of Africa where there is no ability for a slip.
This boat is perfect for so many different applications, especially the cuddy and pilot house when considering surf launching and horrible conditions.
Google surf launching and see how crazy it gets not only going in but coming back beaching your boat with a high tide and a nasty shore dump can get hairy really fast.

Keep up on the good work! i love what you have presented so far!
A few years back I fished out of the Kai river at Kai Mouth SA. Same type cat with a small cuddy I think it was 24-28'. Leaving the river and crossing the sandbar was quite an event.
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Old 01-16-2019, 06:12 AM
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All the while, I am sitting in my lazy boy in Key Largo drinking coffee and reading THT instead of braving the 15 knt winds at Molasses Reef......
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Old 01-16-2019, 06:56 AM
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Originally Posted by dekarate View Post
I was giving that option a lot of thought as well. However, maneuvering cats with the wide engine separation is fairly easy, so the iDock is an expensive 'anchor' function. I have yet to talk to Dave about it, but I am thinking about a 36V trolling motor mounted off the rear of the extended motor bracket. Pull two pins and it easily stores in a floor box or under the front deck. Don't need the 6 or 7 foot shaft option hanging off the front. Add lithium batteries that will last the life of the boat, a 'smart' recharge controller that will keep them topped off as you move around and it's about 1/2 the iDock cost.
Your math seems off. Not saying the trolling motor isn't a better solution for "anchoring" for bottom fishing and such for a bunch of other reasons but cost isn't a saver here. $3K+ for the trolling motor, $2K min. for the lithium battery bank, $200ish range for the charger plus a fpretty penny for the cables and you are right at that $6K cost. It's a wash not 50% savings.
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Old 01-16-2019, 10:14 AM
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Looking forward to watching this come together.

BTW, if your going through the center of the potato patch getting beat by 8' to10's your doing it wrong. There're much easier ways to traverse the gate. Do it in my 13' whaler.
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Old 01-16-2019, 05:00 PM
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https://www.google.com/url?sa=t&sour...6o-likU-m2NwRX

the last vhull I rode about bounced the beanbag layers out of the boat. This guy is making rigs in what seas?

We go out in 4 or less. Everyone has a great time chatting it up both in and out. The 3000 will be even smoother.
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Old 01-16-2019, 07:05 PM
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Originally Posted by Jumpsummo View Post
I've been waiting on your build to start. I plan on similar for hull #7. Towable cabin fold down tower. Up in the air on engines.

You should know with etecs for 6k you can get the advanced joystick controls. That gives you the position holding feature. You can order the engines prepped for it and add later. If not ordered that way you don't have the option. I think they use different ECU.

I'm sure to drop by and see your build.

Are you trailering, dry storing or keeping in a slip?
I inquired about the Evinrude idock with Dave but he talked me out of it. With my budget and the ease of maneuverability of a cat itís not worth it for me.
I will be keeping the boat in a wet slip. No room for a trailer of that size nor a truck to pull it.
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Old 01-17-2019, 05:53 AM
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Originally Posted by dekarate View Post
I was giving that option a lot of thought as well. However, maneuvering cats with the wide engine separation is fairly easy, so the iDock is an expensive 'anchor' function. I have yet to talk to Dave about it, but I am thinking about a 36V trolling motor mounted off the rear of the extended motor bracket. Pull two pins and it easily stores in a floor box or under the front deck. Don't need the 6 or 7 foot shaft option hanging off the front. Add lithium batteries that will last the life of the boat, a 'smart' recharge controller that will keep them topped off as you move around and it's about 1/2 the iDock cost.
As a cat owner, i doubt a trolling motor mounted of the transom will hold a cat into any sort of current or wind. Aren't they designed or programmed to "pull" not push?

100% agree cats are silly easy to maneuver and dock.
Following this build
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