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The new compmillennia 39 cat

Old 03-10-2016, 07:46 PM
  #761  
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I really like how clean the pipework is going to be. How are they attached, if it's a trade secret I understand.
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Old 03-11-2016, 03:29 AM
  #762  
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Over eight years, my original Egret partner, Scott Flanders, circumnavigated the world with his 12' high side Livingston powered with a 30 hp Yamaha. Of course most of the time it rode on the deck of his Nordhaven 46. :-)

http://www.nordhavn.com/egret/index.php4

Since he averaged 6 knots, 20 knots would be ....BREATHTAKING!

Scott and Mary stopped in Washington N.C. for a chat and gave me the 12' Livingston and Yamaha. My small children and I have been tooling around the Pamlico and having lots of fun with it. He also rigged a small console with remote controls and wheel steering. It hits 27 mph with two people swinging a 3 blade 13" pitch aluminum Yamaha Prop @ 5500 RPM.

It now is the only Livingston in the world with a stepped bottom now! Full size test model.

TT to Egret Caleta Pescadores in Chile (Fishermans Bay) In the summer!!!!!
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Old 03-11-2016, 04:26 AM
  #763  
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Originally Posted by Two Hulls View Post
Sounds Ideal, I have recently stepped down from a Viking 50 to a 36 Cat. I could not be happier with the ride efficiency and outboard power. I lost a lot of sq Ft and that is not a complaint just a fact but still have great accommodations for her size. All of that being said
I cruise at 18-22kts burning 1gal per mile on a displacement hull design she weighs in at just under 20,000 pounds dry. I only bring this up to say the top end sounds impressive but I cant imagine you will get any where near that performance in snotty seas or with a significant load.
The displacement hulls run at the same cruise in some pretty big seas and loading has little effect on performance. Just a thought.

2005 Glacier Bay 3480 Ocean Runner
1987 Viking 50' CPMY
2005 Chaparral Signature 300
1996 Baja 236

Welcome to the site.....I have owned 4 cats and they all rode and performed differently. Some of what you stated above was mentioned when I built the 27 Compmillennia.

To this day I wish I would have not sold that boat due to my needs and life changing and not necessarily needed a much larger boat. Anyways the boat that Jim built was far superior in all aspects...Ride, Performance, MPG's, built like a tank,..etc.. vs my 27 WC TE, 27 AC, and the current Sea Cat I have as a interim boat. Many doubted that it would hit 58mph, or achieve over 3mpg at 40mph/4000 rpms loaded with just a pair of Merc 150's....Well the new owner started a thread and his claims were right at or above that on the fuel mileage and he still has not put on his new props...and has the boat sold and wants Jim to build a 31x10' cat for him and a few others.

My suggestion is wait till this boat is finished and then go for a ride. I am in the process of designing/building a express version and possibly a CC for sale and if you are interested in getting into a yacht finished hi-Performance catamaran that will be the top of the food chain...send me a PM.
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Old 03-11-2016, 05:28 AM
  #764  
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Originally Posted by Jassman View Post
..Many doubted that it would hit 58mph, or achieve over 3mpg at 40mph/4000 rpms loaded with just a pair of Merc 150's....Well the new owner started a thread and his claims were right at or above that on the fuel mileage and he still has not put on his new props...and.
Looks like the doubters were wrong. As long as you round up.
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Old 03-11-2016, 02:22 PM
  #765  
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Originally Posted by MakoMyDay View Post
Looks like the doubters were wrong. As long as you round up.
Took me a minute to figure out what you meant. To a sailboat guy "round up" means head into the wind.

It was a brand new boat when that was posted last year. Getting a couple hundred hours on the engines helps and presently Mercury lent me some enertia ECO which have not been tried yet. I saw this posted recently.

I am running them on my compmillennia VH 27' cat. Ran full fuel and 200lbs gear with wrong props and ran low/mid 50's wot and slightly over 3mpg at 36mph. With the new enertia eco's ill probably be at 3.5mpg at around 32-33. Burned 70-72 gallons on an overnighter trip last fall 220 miles plus 10hrs of idling.
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Old 03-11-2016, 03:37 PM
  #766  
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Originally Posted by Otseg View Post
Took me a minute to figure out what you meant. To a sailboat guy "round up" means head into the wind.

It was a brand new boat when that was posted last year. Getting a couple hundred hours on the engines helps and presently Mercury lent me some enertia ECO which have not been tried yet. I saw this posted recently.

I am running them on my compmillennia VH 27' cat. Ran full fuel and 200lbs gear with wrong props and ran low/mid 50's wot and slightly over 3mpg at 36mph. With the new enertia eco's ill probably be at 3.5mpg at around 32-33. Burned 70-72 gallons on an overnighter trip last fall 220 miles plus 10hrs of idling.
I just like busting jassmans balls bc he's gonna owe me a case of beer!
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Old 03-12-2016, 04:51 AM
  #767  
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Originally Posted by MakoMyDay View Post
I just like busting jassmans balls bc he's gonna owe me a case of beer!

LOL..It's all good...We are feeling confident over here....Lets just up the ante double or nothing ....Our top end will be over 72mph..with just a pair of 350's..
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Old 03-12-2016, 06:44 AM
  #768  
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Originally Posted by Jassman View Post
LOL..It's all good...We are feeling confident over here....Lets just up the ante double or nothing ....Our top end will be over 72mph..with just a pair of 350's..
So, faster than a 35st contender, 33 Onslow, 34 freeman, 32st contender, 31 Cape Horn, 34 fountain, 32 yf, 32CV--all with the same power? I'll take that bet. From the boats I can think of yours will be the fastest twin engine fishing boat despite being 9' longer than some of the others running twin 350s., right?
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Old 03-12-2016, 06:59 AM
  #769  
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I wouldnt doubt it too much...........Jim can make the boat very light. As long as Jassman doesnt decide to put a waterbed in the pilothouse
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Old 03-12-2016, 07:18 AM
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Don't forget almost 3' wider too
It is lighter than all boats mentioned
I can't wait to splash this thing in couple weeks
Mako, I like Miller light
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Old 03-12-2016, 07:39 AM
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If we are doubling up I want a bottle of Macallan 12 instead of two cases of beer.
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Old 03-12-2016, 08:48 AM
  #772  
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Originally Posted by MakoMyDay View Post
So, faster than a 35st contender, 33 Onslow, 34 freeman, 32st contender, 31 Cape Horn, 34 fountain, 32 yf, 32CV--all with the same power? I'll take that bet. From the boats I can think of yours will be the fastest twin engine fishing boat despite being 9' longer than some of the others running twin 350s., right?

Are you talking about this http://www.b-21.com/Macallan-12yr-Si...c#.VuRDn-am1ck

I think we are more like this https://www.youtube.com/watch?v=CAqHQZawanU

To answer your question..Yes..Compmillennia, The Hell Cat of all Cats...
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Old 03-12-2016, 09:37 AM
  #773  
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I have to say something as I keep losing the the thread. Coming from South Africa I'm no stranger to cats and its interesting to watch them begin to make an impact in the US. Everyone seems to have a different take on them when I comes to hull design and outfitting but they all look like incredible boats. With the space, ride and versatility offered by cats it will be interesting to see how mono manufacturers respond as they only seem to be able to make them longer and strap more engines on the transom to push boundaries.
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Old 03-12-2016, 09:53 AM
  #774  
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Originally Posted by MakoMyDay View Post
So, faster than a 35st contender, 33 Onslow, 34 freeman, 32st contender, 31 Cape Horn, 34 fountain, 32 yf, 32CV--all with the same power? I'll take that bet. From the boats I can think of yours will be the fastest twin engine fishing boat despite being 9' longer than some of the others running twin 350s., right?
Cat Vs V-hull same size and weight with the same power the cat will easily be 20-30 mph faster. (talking about performance hulls with steps in both cases)

Also all the boats you list the biggest one is 4' shorter, and the smallest 8' shorter not apples to apples at all.

The list should be 39ST Contender, (no idea what an Onslow is), 37 Freeman, 38 Fountain, 39 YF, 39 Sea Vee.

Do you think a 42 YF will do 58 MPH with a pair of 350 Yamahas like the Prowler did? Doubt it.

I think you are going to lose this bet.
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Old 03-12-2016, 11:25 AM
  #775  
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My point was that despite the size, length, weight I'm unable to think of a center console that runs over 70 on twin 350s.
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Old 03-12-2016, 11:33 AM
  #776  
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Years ago I built some tooling for the 31' x 9'-6" Contender center console and then subsequently did some mods for a customer who bought a 31 bare hull and deck to fit a diesel stern drive. We also bought a 31 with 225 Yamahas and rigged it for another customer so I know what a production center console like that weighs. Rays 12' x 39', bare fiberglass parts, or coconuts to coconuts so to speak is 1200 lbs. lighter.

I looked up the Yamaha performance reports for the 31 contender with the stepped hull and twin 350 hp Yamahas. It ran 68.8 mph, not 70, but I am still feeling all right.
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Old 03-12-2016, 11:40 AM
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Originally Posted by Jassman View Post
LOL..It's all good...We are feeling confident over here....Lets just up the ante double or nothing ....Our top end will be over 72mph..with just a pair of 350's..
72 MPH 2 way average? PM me your address and I'll send you a bottle of your choice if you accomplish that! Hope you do, but I'd think you could even put some 350 cowlings on a pair of 400Rs and miss that mark.

No wonder why the aerodynamics of the bow pulpit / anchor were a consideration! That thing might fly away if it gets a draft underneath her
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Old 03-12-2016, 12:01 PM
  #778  
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Fixed it

Originally Posted by MakoMyDay View Post
My point was that despite the size, length, weight I'm unable to think of a center console V-hull that runs over 70 on twin 350s.
Coming from a guy who owns a cat I am surprised you are basing your bet on V- hull numbers. What does a 32' Doug Wright, or 32' Skater, or DCB 34 run with a pair of 300x's? 100-120?

http://www.offshoreonly.com/forums/g...s-124-mph.html

http://www.offshoreonly.com/forums/g...ater-400s.html

Granted Jim's boat is a lot heavier and has more wind drag, but they all share similar hull configuration and therefore performance.
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Old 03-12-2016, 12:17 PM
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DW 32'=116mph
http://speedonthewater.com/new-boats...-foot-cat.html

Last edited by Jassman; 03-12-2016 at 12:38 PM.
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Old 03-12-2016, 12:34 PM
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Originally Posted by AlreadyThere View Post
72 MPH 2 way average? PM me your address and I'll send you a bottle of your choice if you accomplish that! Hope you do, but I'd think you could even put some 350 cowlings on a pair of 400Rs and miss that mark.

No wonder why the aerodynamics of the bow pulpit / anchor were a consideration! That thing might fly away if it gets a draft underneath her

With 10% slip we should be 72.6....the 27 and 22 had less slip than that. Ray's Single Step is different than what is on the other cats..and I have had some experience on how it worked so well and we enhanced it slightly along with a few changes on his boat... we will see if we accomplished our goals. Light, yes, but the ride with the amount of water length is what will be the most impressive part of this boat. Secondly the design of sponsons, step placement, blueprinting and a few other things will make this boat not only fast...very balanced, turn great, and ride well with fuel mileage over the top. I look forward to running her with Ray and Jim.
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