New transom and bracket 23cc

[Blue_Heron]

Originally Posted by hermco

They work well on RIBs too. Here is one of two I did for the local Sea Tow dude last year, gets used every day,

Don,
I was surfing your website a couple weeks ago and meant to ask you about this one. How does it perform compared to a conventional bracket?

I also noticed you did a full hull extension on an Ocean Master. How does the performance of the longer hull compare to a bracketed version?

I'm still doing some research to figure out which way I want to go with my Potter 20, but the technical info Bushwacker alluded to in his post above is making me think a full width extension will provide more dynamic lift at lower speeds. Of course, at that point it's not really a bracket anymore unless you build it to bolt on.
Dave

[hermco]

The RIB hull extension was to get max floatation, I don't have any comparison data. For the Ocean Master I went to Mark at Ocean Master and used his molds to lay up the hull parts, then made a one off mold for the fish box/ livewell and added a twin bracket. Also added fuel tanks while I had the transom cut off. Slid em in under the deck. Worked pretty cool.

[Blackfin26]

Don, Very cool work. Have you extended the bottom of a SC 23 yet for max floatation and an ideal twin engine mount?

[hermco]

Never even had anyone ask about it. Would be interesting to do one with before and after data tho.

[flyingfrizzle]

That is kinda what I had planned to do to my 23, I was going to do a hull extension/bracket similar to what you have done here. That saying of Carl's when he was asked about what he thought about the boats with a bracket he said "why don't you just make the boat longer" keeps popping in my head. It will be a bit before I get started on mine, but as soon as the 20' sceptre hits the water I will be going threw it and changing the transom and splash well to a extended version like on the newer style boats made today like on the regulator 32 and such. I will post some performance information on the "after" when its done but there will not be any before data to compare it to so it might not tell you guys as much.

If it turns out looking half as good as Hermco's extensions and rides well I will be pleased...

[seabass08]

Thanks for the feedback on this guys. So I guess if Mosely says extend the hull/running surface then that pretty much answers my question

Don those brackets look great.

I am looking forward to geting this done later this winter and seeing the performance difference compared to the current set up.

[kitebuz]

Hermco - really nice work as always. Did you tie in the bracket stringers to the stringers in the hull on that RIB, or just laminate them to the the existing transom? Are there +/-'s to doing the bracket directly to the hull vs bolting them on, and any downside to making them a hull extension vs having a step up to the bracket?

[McGillicuddy]

Brilliant! Now, for a Guinness!

[kitebuz]

That came out great! Congrats on both the looks & improved handling/balance. I will he very interested to see your #'s & how they compare to a stepped up bracket.

Did he make a mold for the bracket & bolt it on, or do a hull extension mold & glass it in place? Also curious if he tied it into the existing stringers. You've got me seriously thinking about how to do my new bracket vs hull extension.

[Normagain]

A welding buddy of mine wanted to do a bracket like that for my old boat out of aluminum, except that it would have been wider according to his explanation. My modification would have been to allow enough of a flat spot at the bottom so the existing hull drain plug could be used. There should be more drag with the extension but adding the flat spot at the bottom I thought would help it act more like level (huge) trim tabs with less drag.