Do you reconise this hull bottom?

[gofastsandman]

Now THAT is a Moesly fore foot.

Reminds me of the first time I laid eyes on the Johnson Kirby 21 race boat.
In a hanger with Whacker, Skipper T and BowRider.

I sat on the concrete floor with jaw agape for about an hour.

[kmoose]

Originally Posted by FlyingTime

The transducer reads fine... It's mounted fwd of the transverse steps. She was full of fuel during the first run, close to 400 gallons but really not much else.

That is great news as most all stepped hulls struggle with reading at speed even with mounting at or before the first step due to the forward mounting and turbulence created forward in the hull at planning speeds. Was the ducer pocket mounted in the hull? What ducer was installed?

[Bushwacker]

Originally Posted by FlyingTime

. . . She turns very well at high speed by tracking on the aft longitudinal steps.

Nice work and beautiful pics Steve! She must be well balanced because it looks like her running angle up on plane is almost the same as when she's at the dock! I understand that designing a boat with those transverse steps that can make hard turns without spinning out is quite a challenge! Looks like you put some pretty good height on those aft longitudinal steps, so it sounds like you found a good solution with those big vertical surfaces that must have a good grip on the water! I always thought that adding some more aeration with transverse steps would be the next logical phase in the evolution of the VDH hull, so it's great to see that you're continuing to advance Moesly's ideas! Have you ever built any models to test out those ideas?

I have a good book by British naval architect Uffa Fox, and way back in 1912, by going to transverse steps, they got 55 kts out of a 40' 5.5 ton boat with a pair of very heavy 400 hp engines! Denny

[FlyingTime]

Originally Posted by kmoose

That is great news as most all stepped hulls struggle with reading at speed even with mounting at or before the first step due to the forward mounting and turbulence created forward in the hull at planning speeds. Was the ducer pocket mounted in the hull? What ducer was installed?

I'll have to get back to you on this...

[FlyingTime]

Originally Posted by Bushwacker

Nice work and beautiful pics Steve! She must be well balanced because it looks like her running angle up on plane is almost the same as when she's at the dock! I understand that designing a boat with those transverse steps that can make hard turns without spinning out is quite a challenge! Looks like you put some pretty good height on those aft longitudinal steps, so it sounds like you found a good solution with those big vertical surfaces that must have a good grip on the water! I always thought that adding some more aeration with transverse steps would be the next logical phase in the evolution of the VDH hull, so it's great to see that you're continuing to advance Moesly's ideas! Have you ever built any models to test out those ideas?

I have a good book by British naval architect Uffa Fox, and way back in 1912, by going to transverse steps, they got 55 kts out of a 40' 5.5 ton boat with a pair of very heavy 400 hp engines! Denny

Thank you Denny. We had CFD analysis done on a 75' convertible sportfish 3D model that recorded over 60 knots with 5200hp. But, the first real model testing was the 25' prototype that we've been running around for about 3 years now. That boat will run over 70mph with a Etec 250 ho mounted on a jack plate.

[Bushwacker]

Originally Posted by FlyingTime

. . . We had CFD analysis done on a 75' convertible sportfish 3D model that recorded over 60 knots with 5200hp. But, the first real model testing was the 25' prototype that we've been running around for about 3 years now. That boat will run over 70mph with a Etec 250 ho mounted on a jack plate.

I was thinking scale models (I'm showing my age!), but yea, if you have CFD capability, that's obviously the way to go! Analytical models allow you to quickly evaluate a lot of tweaks and provide good insight on what's really going on with the water flow along the hull! And having a prototype to verify the analytical model is even better! 70 mph on a 25' boat with about 275 hp is impressive! The bass boat guys would be jealous!

[FlyingTime]

Originally Posted by Capt Chuck

Steve
I'm also in Stuart . Since I'm now SeaCraftless, I would give up some cold beer for a ride in that beauty or at least to see it in person.
Chuck

I have the 25 here in Stuart if you want to take a ride. We are keeping most everyone off the 37 until it's more completed. As far as beer goes, whatever you prefer is good with me...

[Bushwacker]

I'd drive up to Stuart for a ride in that 25, AND bring some beer as well! Denny

[uncleboo]

That thing has a sexy booty similar to a BlackJack! Very sweet looking ride!

[Eric B]

Boys I saw the 25 at a boat ramp in Jensen beach. completely stopped what I was doing and walked over and asked what the hell I was looking at. Steve was a great guy and talked all about how he had consulted Mr. Moesly about his design. Its a Jaw dropping boat to say the least.