Thank you!!

By the way, when you speak of great designers you never seem to mention Randy S. of MTI, why is this.....

Question: which thread did I lift this particular quote from? Seems it has appeared once or twice before here my friend... Hope you're doing well and planning to shake things up soon.

http://www.amalficoastcharter.com/no...barche/?p=1017

Here is a great link I found on Sonny Levis designs.Lot of other stuff in there also --Hickman sea sled etc.Check out the big motor yacht Cat that Levi has on this site.

There is a english translator in the upper right corner.

Basically my original question - but you said it better!

Great designer??? And this may be out of line, but I was under the impression that he was very close to Skater, made some cash in the middle east, came back and started MTI as a direct result of Skater's hard work and years of efforts? Please correct me if I am wrong and I will remove this statement.

To Tommy M. Dick Cole invited me to his design studio to draw the Donzi 7 meter. I knew what I wanted, but was not trained in marine architecture. Dick taught me. My name is on the drawing, and it is the shape that I wanted, but Dick is the brains behind it. As far as the psychology, at the time we were on top of the sport boat (read: useless) world, and I wanted something more utilitarian. The model had mild success. When I started Nova, to build v-drive boats, I stretched the design (again with Dick's help) and made a dandy twin inboard. I always hated aluminum stern drives. Still do................

To T2rex: Speed is a square root function of scale. 16' to 32' is a 2:1 scale. The square root of 2 is 1.41, thus the speed increase is 130mph x 1.41 = 187. The 48' is a scale of 3. Square root is 1.73. 130 x 1.73 = 224mph. Pretty believable stuff when you compare it to the state of th art. 32' Skater, 50' Mystic, all day speeds. Not surprising. I STILL want a 40' Switzer............

Yes and no...... since rarely does the width and depth increase in direct proportion to the length..... so there really never are true scale ups.......

However, I will acknowledge that my scale may have been exagerated under the "poetic license" laws of OSO.

One other point using your formula.

If Champ boats race at 130 or so on a 1 mile course, then the precise equivalent would be 32 foot offshore cats racing at 187 on a 1.41 mile course, and 48' cats racing at 224 on a 1.73 mile course.

Like I said, nothing really compares to the cojones of a Champ boat driver.

T2x

I don't mention Randy, simply because he is not, in my opinion, a designer. He is a great set up man, a talented throttleman, and a crafty business man.

Nuff said

T2x

I threw that in because I know it is a very hot subject on both sides of the fence....

I allways heared and thought that a "longer" running surface will give you more lift. thus., more speed. but more friction. less speed. With the steps and cats.. do we have both ?
What about rough water handing and deadrise? Deeper "V"s better in the rough but slower? Wider "cats' stable but now your driving a Cestna.. It's an age old debate... but I wonder is there will be a design that uses a combination of ALL the evolutions and cats and "V" hulls? A hybrid?
I was involved with the testing of the Black Hawks and step in Lake "X" back in eraly 90's.
I am a "step" advicate even tho my current boat don't have one. (my Dad had a 12'l ittle speed boat in the late 60's with a step)
And the big question.. What can I possibly do to a "V" hull. (Avanti = Coyote Beep Beep hull by Arronow. )
To gain speed and "landing" flatter in lieu of often "stern" landing. Great rough water boat but I thnk it's a bit stearn heavy ..


T2.. I respact your inputs and expertise.
Thanks for your comments.