What type of 20 SF
 

Hey, Ive been hunting a project 20 hull in SC to do a total rebuild. I just did a full rebuild and conversion of a 256 Dusky and enjoyed the boat for 3 years. Sold last week, so now Im planning on a conch 22 style rebuild.

My question is I found a mystery 20 seacraft hull that has been abandoned. The vin on the hull had been faired over from a patch a long time ago. I can get the hull for almost nothing but i want to make sure it is a pre 1980 hull. How can i verify this with out a vin. I can acquire a homemade title because the vessel is only a hull and cap. What should I look for to verify the possible age?

I have to dig out the trees growing in her to take stringer pics on monday.

Thanks

Michael
captmattson@aol.com
843-224-3542

pics
 

http://i637.photobucket.com/albums/u...6103e847a1.jpg


http://i637.photobucket.com/albums/u...FB9E25C239.jpg

http://i637.photobucket.com/albums/u...FB94CBC7B8.jpg

You blocked out the hull state ID #....
Go to the tag or title agency with the number that is on there.
South Carolina or wherever the number is from should be able to tell you the year...
My guess is 69-72

Com'on, Skipper,
Cut the dang trees down and count the rings on the trunk:D

Diamond in the rough for sure. As NoBones mentioned it is a pre 80's hull from the looks of her. Looks like the same place Ken found his 27 :) Gil How come you did not see that one on Google earth?

strick

If you can see the stringers that will tell you for sure. If it has 4 skinny stringers it is pre 1973. If it has 4 it is sometime after that. If you can't see the stringers see if you can pop a rod holder out. My 1972 20's hull cap is solid glass with no core except for a very small area at the bow. I think other newer 20s have a cored cap. Someone please correct me if I'm wrong.

As the others have said, it looks like a Potter hull. Another way to be certain is to measure the length of the hull. The Potter 20SF is 19'-8", the Seacraft Industries version is 20'-4".
Dave

Like the others said pre 73 has quad stringers. My 71 did and my 74 has 2 lager box stringers. The state # will tell you exact year. I thought my 22' mako was a 76 till I ran the state I'd and found out it was a 70. Also the older models didn't have the recessed bow rail. I would bet on 69-73 as well but stringers will let u know if it is 74-1980. Not sure what year they added the bow rail to the 20.

With that aluminum rub rail, and that vintage Evinrude, I'd bet it's an early Potter, maybe a '72 or earlier 4-stringer version. Scuppers going straight down thru the floor would be another indicator of a Potter model. Not sure what SeaCraft Industries did with scuppers but I think Tracker models ran 'em out the transom. I notice the solid inner liner has been cut out to add rod holders. That will substantially weaken the hull, but maybe no big deal if you're gonna clear the forest and rebuild it anyway!

My wife put a block on all aerial imagery sites and I'm having trouble hacking her password. Veritable forest floor in that skiff - pine, maple, sumac, poison ivy... wow, you might have to clear that removal and restoration with the US Forest Service:eek:

What are the preferred stringers the 4 typical stringers or the box style stringers? I also found a '78 master angler. I think it maybe sacrilegious to cut a shearline on a master angler. Im planing on creating a bay boat seacraft.

Next question is what is the best way to reinforce the hull sides to reduce vibration when not using an inner liner in the vessels cockpit? What is a good core material to do this?


Thanks for the input. I have been using the search function a ton. I will become a regular here as my project will be documented with a CSC photo journal.

How many licks to the center of a Tootsie Pop?
I can get you a new sim card for google earth...4 ribs for early hulls. 72 or 73.There is a reason the elders keep me around.

Carl overlapped these for an almost flat laminate, centered on the step plane. Smart man.
Center the stringers in the middle of the plane and tab out. Very smart. Flex is just not for breakfast anymore. The steps have large shoulders. Always thinkin` that Moesly fella.

Where is that damn decoder ring, u saying the big box stringers are better? I thought the four were stronger and were changed to the two box style to save on glass and weight.

more pics. Im thinking '70 with some modifications??? I know the transom had been replaced and i think the put a bracing stringer in. This looks seacraft to me. I hope so because project is underway after 2 hours of shoveling dirt and harvesting poison ivy, pine trees, and magnolias. Motor removal and placing the boat on a new trailer this week.

http://i637.photobucket.com/albums/u...1BADD2F701.jpg

http://i637.photobucket.com/albums/u...1BD795610C.jpg

http://i637.photobucket.com/albums/u...1B60E9EF77.jpg

http://i637.photobucket.com/albums/u...1B54B2C149.jpg

http://i637.photobucket.com/albums/u...1BD795610C.jpg

I am not an engineer, but I know one. Look at the tabbing of the four stringer layout. Almost connecting the layup. Spruce has a nice tight straight grain and of course adds beef. Plywood adds even more. Off the factory floor, I would say these are much stronger. Once the wood rots you see fracturing typical of these pictures. Please remember these hulls are older than most of the lurkers.

The old foam adds little structure and has fewer tabbing overlaps. You don`t see as many fractures but water intrusion can cause this and other obvious issues. My Slacker has mint stringers, but she shudders a good bit if I push her.The only time I pushed her really hard was trying to run with Bones at Peanut. She still sneers at me.

If I were going to do one from scratch, I would do a composite grid with big weep channels.
With epoxy. There I said it.

Checkout Caymanboy`s recent build for hullside coring.

Cheers,
GFS

Would say 69-72 vintage. I owned a 70 and it came with the sides cut out for rod storage from the factory. Present 74 does not have cut outs.