Fastest SOB hull???

[AZMIDLYF]

Believe it's a 25 Bernico
https://www.facebook.com/25137873827...6618018420118/

[Greg G]

Good grab, will have to wait and see on the 22. I guess the Laveycraft is the only 22 V running a 400 at the moment. At least in the states.

[AZMIDLYF]

In the states I believe you are correct. I know of a few down under.

[powerabout]

is that the Lavey 21xt, I cant see them mentioning a 22 on their site?

[Greg G]

Correct, that is the model. They have built many of them over the years in various I/O configs. It is longer then they show. Has a twin step 20 degree V.

[powerabout]

would that have the highest freeboard of any of them?

[Greg G]

would that have the highest freeboard of any of them?

The Laveycraft 21 certainly looks to be deep on the freeboard compared to all 6. It is a substantial boat with a full playpen under the deck.

[DoktorC]

Why have a stepped hull when it should be 8' from where the boat touches the water? All the ill handling characteristics of a stepped hull with none of the speed advantage!!

[kentz]

1991 vector/python deep v 1991 7000.00 847-744-0088. without engines. Has tandem aluminum trl.

[JamesGang]

Why have a stepped hull when it should be 8' from where the boat touches the water? All the ill handling characteristics of a stepped hull with none of the speed advantage!!

That is a very good question???

[TooStroked]

Why have a stepped hull when it should be 8' from where the boat touches the water? All the ill handling characteristics of a stepped hull with none of the speed advantage!!

One has to remember that one of the things that drove the addition of steps to many v-hulls was the evil handling traits when many of them were "trimmed to the max" to get maximum speed by driving the bow up. Many people just couldn't figure out how to drive a boat with a pad bottom by getting it "up on the pad." (I know Kevin at Progression has had several folks complain that their Progressions didn't go as fast as they thought they should, only to find out that they just didn't know how to drive one up on the pad.)

So with a stepped hull, one can run with much less trim - and thus the bow runs much lower in the water - and still get maximum speed. Of course this new found speed also came with lots of new handling quirks. (Like getting upside down.) But getting back to step placement, if the bow doesn't need to be way up in the air, more of the bottom is wetted. That would mean a step (or steps) would be further forward.

Remember, most of us know how to run a pad bottom right at the limit. But running my Progression all the way up on the pad requires me to trim down (quickly) when I approach any kind of wave or wake. Not doing so can lead to getting upside down. But with a stepped bottom, since you're not running with lots of positive trim, you don't have to do as much when approaching a wave or wake. Since most folks don't know how to drive - and manufacturers don't like getting sued (by folks that got upside down or that didn't get the top speed they were expecting) - they decided to try stepped bottoms. (Well, some of them did.)

[JamesGang]

I think everyone gets that on larger hulls with a lot of drag, but I still think its a great question on the small hulls. A high X and todays props will get your hull riding with very little weted surface area without excessive trim. Looking at the Bernico with that single step way forward just has me very curious as to what the major benefit is. Sutphen uses a relief chine that helps and has no down side effects with handling. To me the question is still a good one "steps on a small boat"??

[TooStroked]

I think everyone gets that on larger hulls with a lot of drag, but I still think its a great question on the small hulls. A high X and todays props will get your hull riding with very little weted surface area without excessive trim. Looking at the Bernico with that single step way forward just has me very curious as to what the major benefit is. Sutphen uses a relief chine that helps and has no down side effects with handling. To me the question is still a good one "steps on a small boat"??

I hear ya. I struggle with that Bernico step placement too. Apparently it works though.

[2.5-21]

I think it is originally intended for rough water and low HP, Otherwise only a hinderance.

[Greg G]

I think it is originally intended for rough water and low HP, Otherwise only a hinderance.

Assuming you are talking about the Laveycraft here's some info below.

I know they designed there first 21 hulls in 1994 and then in 1997 they adjusted the bottom to add the "two steps" which I believe is how they build it to this day. I'm not sure if the gentleman who owns the one with the 400 on it currently ever had a 300XS on the boat prior, but it would be interesting to know the speeds if in fact he did.