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cardude01 09-14-2015 11:39 PM

Paravane install
 
1 Attachment(s)
This is about how I would like my boat to look after a paravane install.
I like the small mast for a "get home" sail also.

Attachment 44558

This is a drawing of my boat with a 40' mast installed. The lines are close to the Kasten boat but not nearly as nice looking. Michael Kasten has some neat looking designs IMO.



Roberta Jean 43 - Classic Trawler Yacht

cardude01 09-14-2015 11:46 PM

Paravane install
 
1 Attachment(s)
Forgot the drawing of my boat with a mast. Mast is too big in this drawing. Maybe a 25' mast would look better.


Attachment 44561

MurrayM 09-14-2015 11:50 PM

Hope you don't mind if I watch over your shoulder, as I have dreams of paravanes myself in a couple years.

Is this going to be DIY, or are you going to have someone do it for/with you? Asking because the forces involved are daunting...

cardude01 09-14-2015 11:57 PM

No, definitely not a DIY. I don't have the skills. I need to get some plans drawn up by a NA.

I have a engineer buddy at the Cat plant here in town who is an excellent fabricator and loves to weld aluminum, and he's excited about the project.

I'm toying with the idea of doing something like Richard did on Dauntless-- a very minimalistic design that seems to be working for him. I've talked with the rigger who did his in Miami, but not sure I can work out the logistics because of the distance.

Larry M 09-15-2015 07:42 AM

Quote:

Originally Posted by cardude01 (Post 369574)
No, definitely not a DIY. I don't have the skills. I need to get some plans drawn up by a NA.

I have a engineer buddy at the Cat plant here in town who is an excellent fabricator and loves to weld aluminum, and he's excited about the project.

...

You're on the right track. Starting with a NA is your best and safest first step. As Murray mentioned the forces/loading are huge. The NA will determine the placement of the mast, hull reinforcements and rigging requirements. Maybe contact Tad Roberts? He has designed paravanes systems I believe? Distance may be an issue (he's in BC) but if for nothing else he can help with the practicality of the project.

cafesport 09-15-2015 08:00 AM

Ditto. Be interesting to see if you don't just wind up with the sailing version in the end.


Via iPhone.

cardude01 09-15-2015 08:14 AM

Quote:

Originally Posted by cafesport (Post 369629)
Ditto. Be interesting to see if you don't just wind up with the sailing version in the end.


Via iPhone.


I actually like the idea of a sail rig but don't think it will give me the same amount of roll control, plus it's more expensive, plus I would like to keep the boat under cover these next few years while I'm here in Texas.

But eventually, a sail rig could happen.

cardude01 09-15-2015 08:35 AM

Paravane install
 
1 Attachment(s)
Quote:

Originally Posted by Larry M (Post 369620)
You're on the right track. Starting with a NA is your best and safest first step. As Murray mentioned the forces/loading are huge. The NA will determine the placement of the mast, hull reinforcements and rigging requirements. Maybe contact Tad Roberts? He has designed paravanes systems I believe? Distance may be an issue (he's in BC) but if for nothing else he can help with the practicality of the project.


I have reached out to Tad and we have discussed some things, but he doesn't have access to a boat like mine so we haven't gotten very far.

I've also reached out to the guy who designed the rig on Dauntless for Richard. Kind of a minimalist rig but it seems to be working. He is in the Miami area and is trying to get access to an SP or PY cruiser to take a look at things

My biggest problem so far has been where to mount the mast. My PH roof is not strong enough and a compression post wouldn't work there due to interior restrictions. One idea (mine not Tad's) was to mount the mast in front of the PH windows but split the mount into two and make the mast a triangle. There are a couple of flat spots at the edge of the PH windows that would make a good mount (and good access inside) but I don't know that area is strong enough to take the compression without a compression post underneath. They are in a corner so that helps I guess. I assume the triangle would need to be stayed at various places.

Very rough idea:

Attachment 44563

Capt.Bill11 09-15-2015 09:01 AM

Gyro Gale Stabilizers | Marine Stabilizers for Yachts

Larry M 09-15-2015 09:06 AM

Quote:

Originally Posted by Capt.Bill11 (Post 369663)

or these at $29,900. Products - Seakeeper Inc.

Superior Marine in Kemah, TX do Seakeeper factory support.

Diesel Duck 09-15-2015 09:31 AM

Quote:

Originally Posted by cardude01 (Post 369652)
.........

My biggest problem so far has been where to mount the mast. My PH roof is not strong enough and a compression post wouldn't work there due to interior restrictions. ............

Would it be possible to install an arch shaped compression post or two post with a header? This could possible solve your interior problems and it would still take the load plus it would split the load to two post instead of just one which may or may not be beneficial.

cardude01 09-15-2015 09:34 AM

Paravane install
 
Quote:

Originally Posted by Diesel Duck 492 (Post 369686)
Would it be possible to install an arch shaped compression post or two post with a header? This could possible solve your interior problems and it would still take the load plus it would split the load to two post instead of just one which may or may not be beneficial.


That's what I was thinking about with my "triangle mast" idea in that rough sketch. Or maybe I don't understand what you are saying.

Edit:

Wait, are you talking about an arched post (or two) inside? That's interesting. Could a compression post be mounted to the interior floor or does it have to go to something more substantial?

Capt.Bill11 09-15-2015 09:46 AM

Quote:

Originally Posted by Larry M (Post 369668)
or these at $29,900. Products - Seakeeper Inc.

Superior Marine in Kemah, TX do Seakeeper factory support.

Plus something like the SeaKeeper system will add value to the boat to more people than the para vanes will. IMO more people would rather throw a switch to get stabilization than go to the work of deploying para vanes. Plus the Seakeeper will work in shallow water and doesn't cause you to waste time waiting for bridge openings. Especially when installed on a low profile boat like the one in question here.

Gulf Comanche 09-15-2015 09:54 AM

5 Attachment(s)
Here's some pics of my setup. The part of the mast that goes thru the galley roof are the white poles in the interior shot; port side is behind the cushion by the table, starboard is by the refrigerator shown to the left of the fire extinguisher. If you need more pics let me know.
Mike

Capt.Bill11 09-15-2015 09:56 AM

What does a setup like that cost? Assuming you don't build and install it yourself.

Gulf Comanche 09-15-2015 09:56 AM

Forgot to add, the poles go thru the galley roof, thru the deck, then are welded to the stringers in the hull.

Gulf Comanche 09-15-2015 09:57 AM

Mine came w/ the boat.

Diesel Duck 09-15-2015 09:58 AM

Quote:

Originally Posted by cardude01 (Post 369688)
.........

Wait, are you talking about an arched post (or two) inside? That's interesting. Could a compression post be mounted to the interior floor or does it have to go to something more substantial?

Yes, that's the direction I was heading. Since I'm not familiar with your boat I'm just throwing out some ideas that may work for your particular vessel. And yes, the compression posts could be mounted to the floor but only if the floor was solid/strong enough etc. Again, not having even been aboard a boat like yours I can't say for sure it this idea has any merit for your vessel.

cardude01 09-15-2015 09:59 AM

Quote:

Originally Posted by Capt.Bill11 (Post 369692)
Plus something like the SeaKeeper system will add value to the boat to more people than the para vanes will. IMO more people would rather throw a switch to get stabilization than go to the work of deploying para vanes. Plus the Seakeeper will work in shallow water and doesn't cause you to waste time waiting for bridge openings. Especially when installed on a low profile boat like the one in question here.


I don't think there is room for a gyro on my boat. It's a sailboat hull basically without any extra room in the engine compartment or lazzerette. Plus I don't want to spend that much.

Diesel Duck 09-15-2015 10:02 AM

Quote:

Originally Posted by Capt.Bill11 (Post 369692)
Plus something like the SeaKeeper system will add value to the boat to more people than the para vanes will. IMO more people would rather throw a switch to get stabilization than go to the work of deploying para vanes. Plus the Seakeeper will work in shallow water and doesn't cause you to waste time waiting for bridge openings. Especially when installed on a low profile boat like the one in question here.

And don't forget to add that you will need to run your generator continuously to power the SeaKeeper not to mention it takes a very long time for the gyro to wind up (per reports that I've read). Personally, I would not want to have my generator running all the time. I lean more to the "green" side of things and that's why I think paravanes are the way to go for stabilization.


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