Anyone running a hydrofoil on a stepped hull?
03-30-2022, 06:46 PM
#41
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03-30-2022, 08:29 PM
#42
https://www.powerboatlistings.com/view/49850#
Here's a link to a 1990 Senza. Looks like an aggressive step for a 1990 25 foot powerboat. Maybe that's just a handling characteristic of this particular hull. I'd be careful throwing money at it without talking to someone who successfully fixed the issue on the same boat.
Here's a link to a 1990 Senza. Looks like an aggressive step for a 1990 25 foot powerboat. Maybe that's just a handling characteristic of this particular hull. I'd be careful throwing money at it without talking to someone who successfully fixed the issue on the same boat.
03-30-2022, 08:35 PM
#43
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If you guys don’t have or have never had a stepped hull, I’d appreciate it if you just like the guys with stepped hulls talk.
Not mine but it’s the same hull, rides on a pocket of air… do you see why I’ve said that trim tabs won’t work besides the fact that I talked to owners that said they didn’t help
Not mine but it’s the same hull, rides on a pocket of air… do you see why I’ve said that trim tabs won’t work besides the fact that I talked to owners that said they didn’t help
Its not a cat, it does not ride on a pocket of air, it rides on aerated water. Go to a poker run or a race and look at the boats, It doesnt mayter if it has one step or an outerlimits with 27 steps, they will all have tabs. That said your boat, steps or no steps is a single correct? singles are susceptible to torque which can cause them to lean. a twin has counter rotating props that counteract the lean. On a single slightly dragging a tab can help considerably. You need to take the time to learn the hydrodynamics of a stepped hull as there are some things about them that can get you in trouble really quick. You are correct in that they handle different than nonstepped hulls but you need to go a step further as to how.
Last edited by phragle; 03-31-2022 at 06:22 AM.
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03-31-2022, 06:22 AM
#44
Platinum Member
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It is a very aggressive step, and it looks like a much steeper dead rise ahead of the step than behind it.
In my opinion (and I have a single step boat, so I am permitted to engage in this discussion), you should start with easy stuff like trying to move the center of mass farther back (even 50lbs worth of cooler from the front to the back will make a noticeable difference) does trimming it up lift the bow enough, and talk to Brett regarding props to achieve less stern lift. It sounds like you have two different things occurring, correct me if I am wrong: one being bow steer and the other listing over to one running surface? Trim tabs will help with the listing over, the bow steer looks like a design flaw in relation to your current set up (prop characteristics and balance)
In my opinion (and I have a single step boat, so I am permitted to engage in this discussion), you should start with easy stuff like trying to move the center of mass farther back (even 50lbs worth of cooler from the front to the back will make a noticeable difference) does trimming it up lift the bow enough, and talk to Brett regarding props to achieve less stern lift. It sounds like you have two different things occurring, correct me if I am wrong: one being bow steer and the other listing over to one running surface? Trim tabs will help with the listing over, the bow steer looks like a design flaw in relation to your current set up (prop characteristics and balance)
03-31-2022, 11:20 AM
#45
Driver-441
Racer
Did posts get deleted off this thread? I remember commenting....I remember Rob (offshoredrillin) commenting. Neither are here. Didn't like what we had to say? What's this facebook now? lol
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03-31-2022, 11:36 AM
#46
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cheech (03-31-2022)
03-31-2022, 11:47 AM
#48
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If you guys don’t have or have never had a stepped hull, I’d appreciate it if you just let the guys with stepped hulls talk.
Not mine but it’s the same hull, rides on a pocket of air… do you see why I’ve said that trim tabs won’t work besides the fact that I talked to owners that said they didn’t help
Not mine but it’s the same hull, rides on a pocket of air… do you see why I’ve said that trim tabs won’t work besides the fact that I talked to owners that said they didn’t help
Sure does ride on air.
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03-31-2022, 12:03 PM
#49
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Maybe we posted there within last few days and thought we posted here ?
Last edited by SB; 03-31-2022 at 12:05 PM.
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03-31-2022, 12:06 PM
#50
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Yep as usual, wasting everyone's time.
On here, he has no clue as to his own boat.
Then he gets hostile and we're the idiots.
FWIW, by chance when I was Googling Senza Spectre pics, I came across an Iboat thread by the same guy from 2018 fighting the same issue, here.
Apparently he has no clue or he needs someone that does to get the boat squared away if there is an issue at all.
( I have a stepped hull but it has more than one, so am I allowed to talk?)
On here, he has no clue as to his own boat.
Then he gets hostile and we're the idiots.
FWIW, by chance when I was Googling Senza Spectre pics, I came across an Iboat thread by the same guy from 2018 fighting the same issue, here.
Apparently he has no clue or he needs someone that does to get the boat squared away if there is an issue at all.
( I have a stepped hull but it has more than one, so am I allowed to talk?)
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