1971 Flatback

[LilRichard]

Badger- thanks for kind words.

Jim- you are absolutely correct.  Although the pictures did not clearly reflect it, I did both sides the same way.  I agree- I would not fix just one side of the problem... at least not when I am this deep into the project.  However I am surprised you did not see that in picture 3 that the glass has "Stbd" written on it... you are typically WAY more observant than me!

I am hoping that the thick fillet I laid into the corner will help alleviate some of the stress by spreading the load out.  We'll see in a few years!

[LilRichard]

Alright, so made real progress for once.  Today I setup the spray rails on my boat... still need to fair out the side before mounting, but I'll do that this week.  As for now, I countersunk all the bolts and drilled all the holes.

I used 1/4" x 2" SS bolts with fender washers and nylock nuts spaced every 12".  Started drilling from the front and tightening as we went- drilling 2-3 holes at a time.  The thought is I will bolt and glue (5200) the rails back on after fairing.  One note, I decided to mount the rail with the broad side mounted to the hull.  I thought the increased bonding surface area was a plus... here is a link to the manufacturer of the rail:

http://barbourplastics.com/marine-products/R1059.htm

Here are some shots:

From the rear:



From the profile (yes, the chine is NOT finished nor fair yet) but this gives you an idea of the angle of the rail from the chine downward:



From the front looking aft:


Port side:


An example of a counter sunk bolt:


Port side finished product:


Next week is gluing them on...  btw, big thanks to "Dieseldude" from the CM site- his work helped me think through how to tackle this...

[JimCt]

Looks good!  With the rails going that far aft you should have a real dry ride.   The pictures I took of Joel's FB  show how effective they are.  They provide a degree of lift too.

 Will you have problems fairing the chine with the end of the rail right there?

[LilRichard]

Jim-

I hope you are right... I would rather be dry.

Rails will come off before fairing... glued and bolted on after it's all set.

[capnjfran]

I'm confused.  shouldn't the 1 5/8 side be mounted to the hull? with the flare cupped down to flare the water away?  5200 is strong stuff and should hold just fine and with 1 foot spacing of screws - plenty strong.

[capnjfran]

If you get the same flare on the other edge, you should be fine. Your progress looks great.

[LilRichard]

CapnJ- I thought the 1 5/8 side should go against the hull, but upon laying it out, it just looked more sturdy and seemed less likely to fail the way I set it up.  I think it also looked better- when the 2" side was facing out, the rail looked a little clumsy.

[RickK]

I'm confused.  shouldn't the 1 5/8 side be mounted to the hull? with the flare cupped down to flare the water away?

I think capnjfran is right, something doesn't look right there and the way you have it, it would just be a decoration instead of really knocking down the spray .... I would ask Captflatback to look at his.

[LilRichard]

If you gentlemen will notice, there is a flare on both the 1 5/8 side and the 2" side.  If you're interested, I can supply you with a section of the rail to examine... I cut off about 2' from each side.  If you look at the profile from the stern looking forward, you will see the same flare downward on the trailing edge as is on the 2" side.

The bottom line is this- sure, with 2" of deflection there might be a little less spray, but 1 5/8 inches still extends the chine much further than it was stock.  Plus it really gives a lot more bonding area to the rail...

[JimCt]

Looks to me like you'll be in good shape the way you have it laid out.

[warthog5]

Richard with that surplus section of rail. You may be able to pickup a plug cutting kit and make plugs to cap off the screws for a even cleaner look.

http://www.mcfeelys.com/product/PC03-05 ... nk--Fuller

[LilRichard]

Great idea Wart!  I had planned on just filling the holes with 5200 and sanding them flush, but cutting out those plugs might be the best bet.  I will go search for those locally.

[Shine]

looking good Richard :)   Im not sure if you already mentioned this, but I would defiantly fair the hull sides before permanently mounting the rail.  Your going to want to move a faring board across the patch area, and the rail would get int the way.

Also, 5200 stains pretty bad - so go with the plugs if you can

Thanks for that plastic link, I was looking for some trim molding profile for our boat.

[JimCt]

What should he use to hold the bungs in...5200?

[LilRichard]

Thanks Shine.

Jim- I was thinking 5200 would secure the plugs well...  Either way, it will be painted over.

I am going to do some serious fairing today / tomorrow in hopes of having the rails on permanently by end of weekend... if not next week.