Formula 233 Registry

The premier site for owners of the famous 233.

Designed for owners and fans of the one of the world's original offshore powerboats, Don Aronow's famous 233.



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Latest Activity

Jonny Harris and Tim Rust are now friends
Jan 12
Robert r Barnes is now a member of Formula 233 Registry
Jan 9
Tim Rust left a comment for Jonny Harris
"Jonny, I have a 1965 that I have been contemplating selling the whole boat. The boat is in really good shape. I also have a armstrong twin flowtation bracket that i haven't installed. I was planning on converting mine to twin outboards. My…"
Jan 7
Jonny Harris posted a discussion

1965 Formula 233 restoration

Hey chaps,I'm looking for a front rail for my 233 and possibly any other interesting bits should people have anything: badges / chrome windscreen wipers & motors / chrome air intakes / those little teak deck strips (towards the stern), louvered doors etcThanks in advance,JonnySee More
Dec 27, 2016

Devoted to the famous 233

This registry is dedicated to preserving the heritage of Don Aronow's famous Formula 233. A place to network with other 233 owners, discuss technical issues, get and give advice, exchange knowledge and compile a database of the remaining 233's. If you've ended up here you've got some connection to a 233. Special thanks to HORBA for providing images. Please visit the Historic Offshore Race Boat Association , an organization dedicated to educating the public about the history of offshore racing. Welcome and thanks for visiting.


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