Twin O/B Sonic

Amazing build!

Love it.

I like the thinking on power too.

Getting pts/svc in The Keys, let alone in the Islands, requires a large inventory of old motors and knowledge.

I built a powerhead for a customer in the islands who tried to get me to fly over to install it because he didn’t trust anyone over there!

And heard about the heat down there this summer!

When we lived down there and I was finishing my 24’ Sonic, weather was similar.

One day when doing final rigging, and knowing I would be up/down a ladder a bazillion times, I weighed myself before starting.

Ate we’ll, drank a ton of water (but never pee’d!) and weighed myself again, end of day.

Lost 9 lbs!

Ugh.

pasquesi

Amazing!!!

Stitch King

Any update? Are you bolting the egg beaters to the transom or using a bracket?

Maritime_Eng

As of right now the boat is ready for paint/ interior and rigging but need to sell my Center Console boat to pay for this activity. I will be using 3 Bob's Jackplates with 10" setback when I install the engines.

larslindroth

Really dig everything about this project. I belive this is a conversion that will happen to many twin I/O boats in the future. Is your CC the 31 Active Thunder one in the OSO classified? If so, it's a tremendous value for the money and will be gone soon and then this project will continue to fascinate many of us. Can't wait to see this test run after first rigging.

Maritime_Eng

Yes, this is mine. Love the boat but wanted something with triples and a little bit different.

Twin O/B Sonic

Did I miss where you reinforced the transom for loading of the OB’s?

Im a huge fan of the integral swim platform/brackets.

I always use the swim platforms and really like the additional floatation from the box/bracket and the side to side rigidity added by it.

Both of my twin OB 24’ Sonics had bowed transoms from lack there of.

Maritime_Eng

I did not take too many pictures of that process, but I did reinforce the transom. The transom itself is now 4" thick, I added 3 knees, and then extended the stringers (4 of them) to span from the existing firewall (rear of old bench seat) to the transom.

boatnt

So I think you might be the right guy to ask this question, what is truly your opinion of the cobalt, the way they're put together, build quality, been thinking about getting one just don't know much about them, I understand the hardware they use seems to be better than others, I'm just wondering about the boat itself how it's put together, is the deck and hull fiberglass together? Thank you.

Quinlan

I can add my 02- with my 343 i have had over a yr now.
they are a pretty well-built boats. Little to no wood since early 2000s or so. I would say heaver than comparable sized craft too. So that should mean more structure.
My original interior is still in the boat being an 2005, I think they used better quality vinyl's or maybe mine was just better kept but the materials seem thicker.

I am sure Maritime can talk structure way better than I. But hitting wakes and such I hear very few rattles and such.
And most have 9'8" beam also so Fat Bottom Girls Rock. Now I Won't be wake Jumping like the Ciggy