Steve,
Having worked in the industry when this transition was taking place, did you modify any existing deep vees into step vees? What improvements in performance resulted? Were there any before and after #s for a typical Powerplay for instance?
Best Regards,
Steve

T2x has commented on this side by side a number of times, do a search and you'll find some interesting results.

Your English is just fine and thank you for the nice comment on the thread.

We know that nothing supports weight like a horizontal surface on water and a pad does exactly that and also supports the boat at the lowest point and at the point of the highest water pressure.

The Powerplay was Danny's design and from a clean sheet of paper, the hull was tested and changes were made then it was tooled.

My personal vented system is a little different than Modifying an existing boat.

The Pantera Group has good running 41 Stepped Vee

One of our local Builders Pat at AT builds a 37 with his as AVH bottom or as a straight Vee. Look at the photos of it running very nicely done a single step DDC Schoell Bottom.

Fabio Buzzi's Boats run very well with his Bottom in mountainous seas.

The Speed record is held by a step Vee and Boats from Fountain run very well.

Thanks Steve,
Very gracious and diplomaticaly stated. We have been to the AT factory. Interesting bottom (DDC). Their performance #s are surprisingly competitive, and they seem to be good rough water boats. I have seen Fabio's boats run on TV. Not too pretty, but plenty fast. And, no doubt Fountains are fast.....
Best Regards,
Steve

Sir thank you for the reply and for asking.

Lighter engines are on the move ,the LS GM series are very ,and I mean very light engines ,even lighter than a Ferrari engine with all its camshafts, rockers ,valves ,valvetrain components etc etc .
The GM LS is an all ali block,heads etc , and don,t worry about the 2 valves per cilinder ,the heads flow like nothing ever before !
100 hp per litre ( atmospheric ) is doable with these engines while still having a decent idling .

These engines are coming marine based ,some companies build them already ,and they will come up in the future soon.

Don,t forget ,you can,t compare a so called ,, Car engine ,, with a marine engine , low torque high rpm engines will do you no good on a boat ,unless it has multiple gears to shift the engine in its powerband where horsepower is been made ... a 500 hp Ferrari engine in a boat will barely bring the boat on plane when compare to a 500EFI marine engine ,only when the Ferrari screams at high rpm there is 500 hp coming out ,while the old big block produces its power /torque much earlier in its power band , but still also produce 500 hp ,but at a different rpm .

Btw Great thread Steve1 ,I,m following this every day, very informative , keep the pics coming !

A.J

Sir thanks for taking your time to read the thread and for the nice comments.

Nice!

BVI powerplay 25 with 300X's
 

http://a3.vox.com/6a00fae8c7d0c8000b01347f10e2e3860b-pi
http://a2.vox.com/6a00fae8c7d0c8000b0137a5a1ab22860d-pi

Wow, Thats A Very Nice Looking Powerplay.

my darling

http://a0.vox.com/6a00fae8c7d0c8000b0137e10200a0860f-pi
http://a0.vox.com/6a00fae8c7d0c8000b01347f110c38860b-pi

ludo, Wild looking 25 Powerplay.

We used a heavy green tint on the early lamination and on Tooling.


http://i26.tinypic.com/2prbc09.jpg

Sir it is the plugs, patterns,Jigs ,molds and or "tooling" we use in molding and building the boats.Rigging Let's say Danny was very Picky about every boat done in his factory.

Steve1, glass fibre on the foto subscription 1323 look quite strong. Is this only foto or it is reraly so bulletproof? Tell me please how much pounds have square meter of glass layer and how much axis? It look realy strong, great.



bye
Saso

We had a good "balanced layup" on the bottom,I can't go into the lamination schedule too much further. Thanks for asking

STEVE.......i'm back..lol:lolhit:
Hope everything is fine !

Yes all is good, I am taking a small break from the pictures. Take Care.

I may have missed it, but what boats today are utilizing your personal vented system mentioned above? Are you able to share your concept in comparison to others being used today from other builders? Again, fantastic thread. Thank you.

That system was on the T-4 and was prototyped a long time ago with good results it was originally intended as a extension of my Flats boat line up into the 21-22' Bay boat area and was coupled with a method to get the outboard prop shaft up and still have water on a standard gear case without remote pickups.

There was a simple way to get the bottom running on a "Air" Film without any radical geometry changes which was the approach I chose which made a lot of things easy from handling to trailer bunk considerations.

Someone probably had the same Idea long before I did.

You're probably right, if you read the History Of Powerboating, I am sure you will see something very similar in there as the stepped bottom design has been around for many years.

Beautiful Blue water down there you guys get to play in.

thanks, it is the 33 powerplay with twin 300x's that u can see in post #1380!!!!
nice roostertail and run a nice 65 mph at WOT!
i hope you enjoyed

Thank you I did ,Nice place there and a lot of Powerplays .

With all that 'hop' in the boat you must have had it trimmed way up. The seas didn't look that rough...

I agree, and thats how u trip and stuff a boat !!!

Trusst me ...lol, i know ..hehehe:party-smiley-004::evilb:

it wasn't that rough, but engines are very high and trimmed excessive

Powerplay 33 SD


http://i30.tinypic.com/1yr1hd.jpg

Chris Cat?

Cougar Cat.

Cat here is a Shadow (which is like a Chris Cat) sitting next to the Powerplay Cougar,New Orleans 1983.


http://i29.tinypic.com/15o87l3.jpg

Yeah I see the size difference now. Cougar is 35'?

@ 33 I think, those were built in the Philippines by Asia Craft they also built the second 38 which became the Arneson #6 Cat there were a few at Cougar on 188 st back in the day.

Surely you're not saying Mr. Arneson had Merc drives on his boat are you?? :lolhit: