I've decided to use 2 layers of 3/4 inch marine plywood laminated together and then incased in fiberglass b/c of budget would not allow me to buy a 9'x5' peice of coosa. With the price of coosa it would of been my entire budget going to just one peice of core. I had a freind of mine from G&S yacht builders from over in newport come and give me direction on how to make a better, stronger yet cheaper transom rebuild. for the money it was going to cost me in coosa I can buy all the materials (except paint) to rebuild and get it ready to paint before the cold gets here.
personally I wish I could have went with coosa but after talking to Jarrod I feel more secure in the plywood construction than with the coosa anyway. the boat will be kept in my barn so there will be little weather to deal with and he showed me the tricks of the trade that they use when building million dollar sportfishers w/ plywood
I only used 2.0 mat and 20 gallons of resin. It seems extremely strong to me and don't for see any problems but won't know until I water test it. I am a builder by trade and like to think that I have enough common sense to make it what it should be. I have actually just primed the hull and am fixing to paint it this weekend. I also go and pick the bracket up this weekend:hoppingmad
no I used 8 layers on outer skin with 12 oz biaxial on last set of everything used 4 layers on inner core and made it caped off with 5 layers interlocking into all the glass from the stringers to the wash well . I used an entire roll ( 90 yds)of 2 oz long stranded mat I bought from advanced plasticsand about 20 yards of 12 oz biaxial. This is not typical but my friend from G&S yachts helped and advised, me he did say that what you are saying was an option but being away from the coast right know I have this material at a low cost and readily available.
hebegb That's belongs to my buddy Eddie Ring aka Ringleader. in the first pix's posted they were taken in my driveway when we removed the bracket that was full of foam. and about 100 extra pounds of water.
This is actually the official site where the build is being posted.