1971 Flatback

[Shine]

I'm a newby to this forum and am beginning a rebuild of a 71 222.  I'm wondering about supporting the hull, to keep the hull straight and true while stringers are out and new stringers are going in.  Mine is in my garage, blocked at transom rear corners, and blocked under bow.  with stringers and floor out, seems to have twist and flex, if I induce it purposely from pulling on gunwhales.  Should I have more support points along the chines and under the keel to keep the keep straight? Could you include a photo of where you blocked the hull, please?   Also, how much higher are you locating the floor?  I've heard 2" higher than the old floor was is the new standard.

Yes, you need to support the hull or it WILL deform without any internal support.  There are more than a few ways to do it.  You can see in my rebuild thread how ours is braced, but thats just the easier way I found.  

Ideally you really want to have the hull braced before you cut out the supports.

Have you started a new thread for your boat?

[LilRichard]

I agree with Shine- I braced mine in multiple points along the chine before pulling the stringers.  I think I have something like 9 support points in all- all towards the very outer edges of the hull where it should not cause the bottom to hook.  I can take a few pics if you'd like.

I am raising my floor 1.5".

[capnjfran]

Please see my new thread posted tonight.  Looking forward to the project on this forum.

Jim

[LilRichard]

While my man Jim in Ct is shoveling snow, I was busy grinding glass and adding bulkheads.  Doesn't look like much forward progress, but with my help out of town, it is slow going!

Forward bulkhead installed- 2 layers 1808, with one layer 2415 in between.



In this pic I have already added a layer of 3/4 ply so that I have something to screw my fuel tank tabs into.  The lamps are cooking the thickened resin that I glued the wood to the bulkhead with.

Here's a shot from the bow side



After applying the wood to the bulkhead, I added another layer of 1808.



And finally, here is a shot of the two forward bulkheads and short stringer up front.  



My goal now is to get the fuel tank in place, and build the aft bulkhead.  Obviously all of these bulkheads will continue out to the sides of the hull, I just haven't ground those spots out yet.   :cry:

[RickK]

Looking good Rich.Gonna have her done for the next "Rendevous" - late Apr or early May?

[LilRichard]

No way... but thanks for the thought!  I am aiming for that same time NEXT year.  Still have to build the rest of the bulkheads, drop in the tank and floor, build the rear cap, pull and rebuild existing cap, then rig the thing.  

I might however be able to ride out on, say, a nice 230- if I were invited!

  8)

[RickK]

No way... but thanks for the thought!  I am aiming for that same time NEXT year.  Still have to build the rest of the bulkheads, drop in the tank and floor, build the rear cap, pull and rebuild existing cap, then rig the thing.  

I might however be able to ride out on, say, a nice 230- if I were invited!

  8)

Sounds like a couple week gig
You're welcome on my boat - haven't figured out which one I'll tow up there yet though. We talked about having the next gig at a place where people could get there without a boat - for people in your position (or Jim and Miquel who can just fly in   ) NOT Disney World

[LilRichard]

I continued building bulkheads this weekend- today I got the bulkhead aft of the fuel tank installed.  Once again, I added a 3/4 piece of plywood so that I would have something to screw the tank into.  This picture is looking toward the stern.



Here is a shot looking toward the bow.  The fuel cell is sitting on top of the bulkhead I installed last week.



Here is a shot of the "coffin" that is formed by the stringers and bulkheads.  You will see two strips of 3/4" ply glassed into the hull- that is what the sides of the tank will sit on.  Pardon the glass dust- it's everywhere :x



And here's a shot of the console... haven't touched it since I laid the glass over the top.  I need to add another layer of mat to it, then start the fairing.  



Next weekend is the last bulkhead, then I will start grinding out the places where the bulkheads will connect to the sides of the hull from the outside of the stringers.

First I need to order some more tyvek suits up... anyone ever order from Tasco Safety?  They have suits for ~$4 each before shipping...

[JimCt]

Beautiful progress.  The glass dust simply shows you've been working.
Four dollars a suit is a good price.  I need more bunny suits too so maybe I'll give Tasco a try.

[LilRichard]

Feels like I have not made as much progress as I would have liked... but I have had stuff going on almost every weekend.  Here is a quick update- tank is ready to be strapped in now... just want to get the rest of the glass work and rigging done before putting it in for good.

I cut out all of the "wings" for the bulkheads this weekend, as well as added the final aft bulkhead (in the foreground of this picture)



Here's one more shot to give you some detail:



Going to glass over them next weekend, then start getting ready to finish the stringers and form the transom knees.  Hopefully after that I will start rigging it with the intention of having the floor in by start of the summer.

[JimCt]

Moving right along there!  Bet the floor's in well before summer.

The ways I've seen so many of our AS's here being rebuilt demonstrate how much stronger and longer-lived they'll be.  Better stringer layout & bonding, better drainage, superior materials etc., etc.  I complain about how the factory did things but had they done it like your boat, production costs would have been out of sight.

[RickK]

First I need to order some more tyvek suits up... anyone ever order from Tasco Safety?  They have suits for ~$4 each before shipping...

Hey Rich, I've searched the "tascocorp" site and don't find anything about tyvek.  Got a different url for me to look at?

[John Jones]

Is this it
http://www.tasco-safety.com/clothing/Di ... cks.html#b

[LilRichard]

JJ- yup, that's the site, here's the case pricing:

http://www.tasco-safety.com/clothing/clothing.html#b

[RickK]

Thanks guys - wonder why, when I entered "tasco safety" into the search engine (yahoo), that didn't come up?