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-   -   Design Experts, Rough Water Question. (https://www.offshoreonly.com/forums/general-boating-discussion/191992-design-experts-rough-water-question.html)

mccaffertee 07-31-2008 10:23 AM


What about rough water handing and deadrise? Deeper "V"s better in the rough but slower?
There is a solution to that, but no one has developed it. Yet.

BROWNIE 07-31-2008 10:28 AM

My God! I think you've got it. We split a Cigarette 35', put a wing in it....... Voila. The world's fastest, best riding boat.

mccaffertee 07-31-2008 11:30 AM

deja vu...they say what goes around will come back around!
:)

Miller 07-31-2008 02:27 PM


Originally Posted by BROWNIE (Post 2640780)
My God! I think you've got it. We split a Cigarette 35', put a wing in it....... Voila. The world's fastest, best riding boat.


And, we'll give Reggie credit while getting T2x to do a voice-over from a helicopter to accompany all ads! That is a truly unbeatable combination! :evilb:

mccaffertee 07-31-2008 04:18 PM

Does T2x have a website? Or an email adress listed anywhere?

Miller 07-31-2008 10:44 PM


Originally Posted by mccaffertee (Post 2641212)
Does T2x have a website? Or an email adress listed anywhere?

[email protected]

:evilb:

Seriously, he has an email, but I am sworn to secrecy (as is everyone else who has it)! Sorry but I don't want him to come after me... :greenchainsaw: :violent-smiley-021::waffen093:

Chris Sunkin 08-01-2008 07:15 AM


Originally Posted by mccaffertee (Post 2640768)
There is a solution to that, but no one has developed it. Yet.

That's because they're waiting for the laws of physics to be repealed.

mccaffertee 08-01-2008 11:37 AM

Mr. Brownie, evidently nobody caught on to your "sarcastic" remark about your new idea!
:rolleyes:

T2x 08-01-2008 01:05 PM

[email protected]

T2x 08-01-2008 01:08 PM


Originally Posted by BROWNIE (Post 2640780)
My God! I think you've got it. We split a Cigarette 35', put a wing in it....... Voila. The world's fastest, best riding boat.

Extensive testing with that design has already been completed.

Based on my humble evaluation of the result, two facts emerged which must be considered should you attempt this again:

1. it needs at least a 12 foot wide wing section

2. Don't sell the company that makes the hull to anyone with a b-a-a-a-a-d temper.

T2x

Steve 1 08-01-2008 05:51 PM


Originally Posted by T2x (Post 2642148)
Extensive testing with that design has already been completed.

Based on my humble evaluation of the result, two facts emerged which must be considered should you attempt this again:

1. it needs at least a 12 foot wide wing section

2. Don't sell the company that makes the hull to anyone with a b-a-a-a-a-d temper.

T2x

LMAO

donmac 08-04-2008 07:54 AM

I have a pic of a vee with a wing from the 86 worlds it was a european hull and may have had diesels.

T2x 08-04-2008 08:11 AM


Originally Posted by donmac (Post 2643678)
I have a pic of a vee with a wing from the 86 worlds it was a european hull and may have had diesels.

It was a Buzzi hull ...from Italy....with Seatek Diesels.... created by the inimitable Fabio Buzzi.

It is possible that "Buzzi" means "Brownie" in Italian since both men share a marvelous sense of humor........ or maybe they both attract beautiful women...... or perhaps they both have been involved in the most outragious designs in Offshore History.....

Take your pick :p

T2x

tommymonza 08-04-2008 11:00 AM

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Hate to be a kill joy but i checked with the girlfriend and it means nothing It is just a last name .And for everybody it is pronounced Bootsy

And as my father would say if we can get by all this friviality and hilarity and get back to the subject..

Brownie thanks for the reply on ypur Nova design.What was a minor sucess the performance ?

And was wondering if you guys could answer about Levis Delta design in comparison to the American V design.

And some of Sonny Levis DRAGO 50 i found.

tommymonza 08-04-2008 01:22 PM

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And the DELTA design

BROWNIE 08-04-2008 01:35 PM

Tommy, minor success was sales. Performance was ggod/excellent. Sonny is a dear friend of mine. I have his book, "Dhows to Deltas" PM me and I'll let you read it. That Drago had a notch, and 'under the boat' surface drives in the 70's. Nobobdy smarter than Sonny.

T2x 08-04-2008 02:11 PM

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Tommy:

That Drago is certainly an ungainly looking thing isn't it?

As far as the Delta design, I always loved the lines especially the "Surfury" (#111 in your picture), but , as I recall, that boat was designed in the early 60's at a time when the vee step hull was just beginning to appear on the performance scene. The lack of significant forefoot in the hull would inevitably make it more prone to stuff than the fuller Cigarettes, Donzi's, etc. If you look at the Delta boats underway, one would have to presume that they were weight balanced somewhat aft to carry the bow as well as they did.

I don't know much about them other than having raced against the outboard hull in my earlier picture ( and repeated below) in fairly big water in Lake Michigan ( Milwaukee-Chicago-Milwaukee race). That Levi designed, Souter hull was over 20 feet in length and I was racing in an 18' Eltro (see picture below with Linder driving) which was the polar opposite in terms of forward entry design. The hulls were roughly equivalent in the sea conditions, but , given the extra length of the Souter, I didn't feel like there was any real advantage over my smaller boat. At the time I simply felt that the Levi/Souter had a "stretched bow" similar to my earlier Allisons which gave length for styling purposes and to make them legal in certain racing classes without producing any real spanning ability. I can also recall clearly that the Eltro was much more stable laterally and had no where near the chine walking tendencies of the Levi/Souter....... which are clearly evident in the photo. I also remember seeing the 28' Ghost Rider..which was the dominant hull in 1965, but that seemed to have a more full bow area......

Just my .02, perhaps Brownie can recount his experiences when racing against them.

T2x

40FlatDeck 08-04-2008 02:37 PM

T2x.....one more question (maybe a few more:drink:)

What were some of the changes Peter made when he introduced the 40??

I have heard the 40 is not there best/fastest hull....some say the 36 is.

What do you think???

T2x 08-04-2008 03:52 PM


Originally Posted by 40FlatDeck (Post 2644158)
T2x.....one more question (maybe a few more:drink:)

What were some of the changes Peter made when he introduced the 40??

I have heard the 40 is not there best/fastest hull....some say the 36 is.

What do you think???

The 40 was a big departure from his previous designs, primarily in the forward entry area for all of the reasons previously covered. It also had added reinforcement in the deck and cockpit areas for greater driver protection. As far as its performance, it was certainly as fast as anything else at that time and lent itself to being "stretched" into the early Victory hulls (by guess who?) which were very successful on the UIM circuit. If memory serves I believe Gentry set a World record in a 40 Skater so it definitely wasn't a slug. In addition the 40 was a great rough water boat and took the measure of anything and everything else out on the race course, including much larger Vees and cats.


The fact that the later 46 and 36 foot hulls might have been faster designs was simply a matter of evolution and added experience and testing on Peter's part IMHO.

T2x

40FlatDeck 08-04-2008 04:00 PM


Originally Posted by T2x (Post 2644235)
The 40 was a big departure from his previous designs, primarily in the forward entry area for all of the reasons previously covered. It also had added reinforcement in the deck and cockpit areas for greater driver protection. As far as its performance, it was certainly as fast as anything else at that time and lent itself to being "stretched" into the early Victory hulls (by guess who?) which were very successful on the UIM circuit. If memory serves I believe Gentry set a World record in a 40 Skater so it definitely wasn't a slug. In addition the 40 was a great rough water boat and took the measure of anything and everything else out on the race course, including much larger Vees and cats.


The fact that the later 46 and 36 foot hulls might have been faster designs was simply a matter of evolution and added experience and testing on Peter's part IMHO.

T2x


Cool, thank you....:ernaehrung004:

tommymonza 08-04-2008 05:17 PM

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Brownie

I assumed you meant the economic part of it I was just checking.
I also thought that you had mentioned the Donzi was a 7 metre in a previous discussion but the numbers didn't work out on the conversion for me .After looking at these pics I put 2 and 2 together and got that you tooled up a longer version for your Nova and changed your lift strake configuration .

Not trying to be an azz kisser but the unique style of the large windshield wings and the bold flared look of the bow on the Nova makes it my favorite boat.Even though Wellcraft made an icon of the design I lost interest after they changed the windshield design , kinda like after they took the tailfins off the Cadillacs.

tommymonza 08-04-2008 05:50 PM

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T2x

Thanks for the feedback on the Delta .

The Early European boats to me were always a curiosity .

I have not viewed them in many years but after going back and looking at the pics of Levis boats it makes me wonder how they carried the bows so well ,especially being that most were fitted with surface drives. There does not seem to be an exaggeration of rocker in the hulls that would suggest that was providing the lift. I do see that a number of Levis boats have heavily notched transom but many don't and still seem to carry the bow very well.I can understand the chine walk problem due to the narrow width though.

One more question for you design guru's

Why can you not run the lower lift strake all the way to the transom on something small like a 18 Donzi. At speed the hull is already on the last 3 feet of the bottom. To me this would seem to steady the hull and give something for the hull to ride on to eliminate chine walk.

I know i ask to many questions.

Brownie I better get with you on that book so you guys can get on to other things.

And some more Levi designs

tommymonza 08-04-2008 05:53 PM

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Some more of Levi

tommymonza 08-04-2008 06:00 PM

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Levi high speed cat .

300 feet and a 100 knots.

T2x 08-05-2008 07:16 AM


Originally Posted by tommymonza (Post 2644353)
Levi high speed cat .

300 feet and a 100 knots.

Man oh man I love that cat!!!!!!!!!!!!! Wow! That thing is so gorgeous, it should be illegal.

T2x

tommymonza 08-05-2008 03:37 PM

Yea that thing would be outrageous wouldn't it.300 feet moving at 100mph

T2x 08-05-2008 04:21 PM


Originally Posted by tommymonza (Post 2645413)
Yea that thing would be outrageous wouldn't it.300 feet moving at 100mph

I especially like the way its wake mimics a vee bottom monohull........... :p

Chris Sunkin 08-05-2008 04:35 PM

100 MPH? I couldn't imagine how much power would be required to make 300 feet go 100 mph. It probably couldn't carry enough fuel to travel out of sight distance from the fuel docks.

PARADOX 08-05-2008 04:56 PM

Better yet.. 100 Knots = 130+- MPH ??

Quote:
Originally Posted by tommymonza
Levi high speed cat .

300 feet and a 100 knots.

Man oh man I love that cat!!!!!!!!!!!!! Wow! That thing is so gorgeous, it should be illegal.

tommymonza 08-05-2008 05:17 PM

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I don't know I was looking at that also. It might be a 3point or something.Brownie probaly knows.

Couple pics of another Levi design that has the same transom look.

BROWNIE 08-06-2008 07:48 AM

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When I worked for Tom Gentry/Johm Connor on the Gentry TransaAtlantic project, we tested hull shapes to build a record setter across the Atlantic that would be truly noteworthy. We invited everyone who thought they had the right stuff to submit a design, and we would tank test it. Our tank was the New River in Ft. Lauderdale. We started with Harry Schoell's instrumented towboat, and a few models. All my stuff got knocked out in the first round (much like my boxing career). We had some really heavy hitters submit designs, and we tested every goddam one of them. I pulled models for nearly three years. Learned a lot. We finally ended up with a design from the former head of advanced ship design from the US Navy. We fiddled and fiddled with it, and ended up with a 184' long, 50' wide, 24' high, hard sided surface effect ship (skirts front and back). 1 million pounds, 100 knots. 38,000 hp, surface drives. It was a really crappy boat, but boy, was it efficient! We didn't bother with styling at that point, and it looked the box that Sonny Levi's boat came in. The picture is our second boxiest boat model. The day before we were starting to build a 1/5th model, Tom dumped his cat in Key West, and that was that. Dammit!

tommymonza 08-06-2008 08:14 AM

It looks like a SeaCat.

T2x 08-06-2008 08:25 AM


Originally Posted by tommymonza (Post 2646103)
It looks like a SeaCat.

What does...the boat...or Brownie?:p

BOBCATMATHEWS 08-06-2008 10:42 AM

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Originally Posted by Chris Sunkin (Post 2645493)
100 MPH? I couldn't imagine how much power would be required to make 300 feet go 100 mph. It probably couldn't carry enough fuel to travel out of sight distance from the fuel docks.

Here ya go!

tommymonza 08-06-2008 10:52 AM

Exactly.

Mystic 08-06-2008 08:15 PM

Brownie, those pictures brought back some very fond memories of towing that rig up and down the canals with you. Especially when you made me ride on it to simulate the fuel load. Such a shame it didn't make it any farther than it did.

jc

offshoredrillin 08-06-2008 08:34 PM

what ever happened to the boat that had a knife like bow that was trying to set a world record, that was a pretty cool design, the bow sliced through the water not on top.

PARADOX 08-06-2008 09:44 PM

Great history Brownie..
Did you ever seen the boats racing from Calais to Dover.. across the English Channel ? Looked like surface submarines.
I have to dig out ome old pictures one of these days.

T2x 08-07-2008 07:42 AM


Originally Posted by offshoredrillin (Post 2646888)
what ever happened to the boat that had a knife like bow that was trying to set a world record, that was a pretty cool design, the bow sliced through the water not on top.

"Sea Knife-CANDO" was an idea whose time will never come. The thing needed to be towed on plane in spite of having Mercury's biggest engines in the bilge...and broached like a Mother****** when it finally got going.

This is a prime example of "A little knowledge is a dangerous thing."....especially in the hands of "A fool and his money..."

If you are referring to the more recent example of this design...this time with outriggers to keep it in a straight line..."World Race"....complete with biodiesel, touchy feely hokum.... the results were predictably similar. One dead fisherman, a chronic lack of funding, a tremendous waste of money, and a foul smelling engine compartment.

T2x

tommymonza 08-07-2008 08:12 AM

When i was in Paris last fall the World Race Tri was there.

They were looking for crew to finish the trip at like
$20,ooo a head.There was a bunch of pictures with narratives next to them posted on a big board next to the boat by the former crew.Anyways after reading some of them I think I would rather go to a Turkish prison for a spell rather than get on that thing.

I took pics of that board ,it was pretty amusing, Just have to find them.

Brownie who designed the boat that you are towing in the pics ?


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