Wood in a 1971 20 SF

plusone876 · #1 09-27-2019, 09:58 AM

What parts of the hull are wood? I know the transom, floor (core), hatches (core), and various other areas have wooed but wanted to confirm. Stringers?, cap, liner, etc.?

Thanks

plusone876 · #2 09-30-2019, 02:34 PM

Anyone?

DonV · #3 09-30-2019, 03:47 PM

I don't think the stringers do at all. Glass filled with foam. Probably wet foam for a '71.

Joe R · #4 09-30-2019, 10:05 PM

Deck. Transom . keel, stringers are hollow but may have a piece of wood in them that was used as a form during construction

Joe R
21 SeaCraft
Susie 2

plusone876 · #5 10-01-2019, 03:32 PM

Thanks. Any other wood. Core of cap, hatches, etc.?

JohnC · #6 10-01-2019, 06:08 PM

Cap coring is wood, deck coring is wood, plywood cored transom & some kind of hardwood in the keel (looks like fir to me). Some of the inboard models had some pieces of wood in the stringers to bolt motor mounts to. That's it!
Hull and stringers are resin & glass - no sandwich coring at all. in 1971 I believe that you have 4 hollow stringers - They look like they were made in a mold and then tabbed into the hull (hollow), no foam filled box stringer like the later models.

Quick edit - the cap coring I have seen is in later model MA boats. I don't know if the cap in the 2-piece hulls is cores or not. If you pull a rod holder out you will be able to see it.

Andrew Hill · #7 10-09-2019, 09:05 PM

X2 on what John Said. I just dove into a 71 20 SF and found wood to be in keel, and hollow stringers throughout

Quote:

Originally Posted by JohnC

Cap coring is wood, deck coring is wood, plywood cored transom & some kind of hardwood in the keel (looks like fir to me). Some of the inboard models had some pieces of wood in the stringers to bolt motor mounts to. That's it!
Hull and stringers are resin & glass - no sandwich coring at all. in 1971 I believe that you have 4 hollow stringers - They look like they were made in a mold and then tabbed into the hull (hollow), no foam filled box stringer like the later models.

Quick edit - the cap coring I have seen is in later model MA boats. I don't know if the cap in the 2-piece hulls is cores or not. If you pull a rod holder out you will be able to see it.