1981 Springbok 18' Restoration/Renovation

SlipperyOar

Petty Officer 3rd Class
Joined
Apr 12, 2024
Messages
90
The gluvit on all the seams cured nicely, I riveted the stringers back into the boat.

There was a few spots with some signs of corrosion so I cleaned with soap and water, then wire brushed away any of the corrosion, then acid etched and primed each spot. I then used 2 part epoxy to fill any small corrosion pitting spots and allowed that to cure.

I then began building the front casting deck framing. Using 1/8” thick angled aluminum varying between 1-1/2” and 1-1/4” leg lengths, the longer leg lengths in the middle and the shorter lengths towards the front as I plan on having a pedestal base for a seat. Have a few more pieces to add in tomorrow to tie into the hull between the front and rear cross beams. I opted to use solid rivets where I could access both sides for added strength and the resistance to vibrations possibly loosening them.

Coming together nicely!
 

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SlipperyOar

Petty Officer 3rd Class
Joined
Apr 12, 2024
Messages
90
Continued on with framing the casting deck. I’ve got 4 vertical supports still needed and 1 more horizontal brace at the very front to allow to fore-most part of the future deck to be secured and be a meeting spot where the deck will connect perpendicularly to a cover beneath the cap. Hoping to have some time tomorrow or Sunday to finish these last bits up!

Back to work next week and likely won’t get any work done on it for the next 2 weeks with my busy schedule so this has been a nice productive stretch!
 

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SlipperyOar

Petty Officer 3rd Class
Joined
Apr 12, 2024
Messages
90
One thing i noticed last night as i cleaned my workspace, i may have slightly miscalculated the dimensions of my splashwell. The splashwell fits perfectly from gunnel to gunnel in the boat, but the two pieces of aluminum that were supposed to rivet to the side of the hull and join with the side storage pieces may not fit in there now. Doesnt seem like too large of an issue, i'll likely need to cut back on the side piece and fold tabs on it to reattach and just use solid rivets with 5200 on any unused holes. Minor mistake made by me but shouldnt hold me back
 

airshot

Vice Admiral
Joined
Jul 22, 2008
Messages
5,080
One thing i noticed last night as i cleaned my workspace, i may have slightly miscalculated the dimensions of my splashwell. The splashwell fits perfectly from gunnel to gunnel in the boat, but the two pieces of aluminum that were supposed to rivet to the side of the hull and join with the side storage pieces may not fit in there now. Doesnt seem like too large of an issue, i'll likely need to cut back on the side piece and fold tabs on it to reattach and just use solid rivets with 5200 on any unused holes. Minor mistake made by me but shouldnt hold me back
We call that an engineering design change, very common !
 

SlipperyOar

Petty Officer 3rd Class
Joined
Apr 12, 2024
Messages
90
Welded some 2” flat bars onto the bow casting deck framing. Added it to the 3/4” leg sections to add some area needed when I have storage compartments and need the area to support the hatches. Everything went well with the welding; 110 amps, 30% AC balance, grey tungsten, 3/32” 5356 filler.

Also did some welding after the initial fit up was perfect for the aft deck. It’ll tie in to both sides of the hull with angled pieces of aluminum riveted to the hull, as well as being riveted to the gunnels for rigidity. Tied into the stringers with 1-1/4” leg angled aluminum. Tied into the splashwell as well. Not quite done yes as I’d like to reinforce it a bit more to add some more lateral strength along the bottom.

Next up will be adding a few more 2” strips to the bow framing for another storage hatch, and finishing up with the bracing for the aft deck.

Thinking about running some rectangular or angle aluminum parallel with the stringers along the sides of the hull to give the floor more locations where it can be tied it, as well as adding additional strength.

Happy with what it’s come to so far, hoping to be done all the structural framing shortly and begin measuring out all the wooden flooring and getting that cut and fit up.
 

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