Unusual inboard drive-What is it?

[platapus77]

Found this boat on craigslist. It appears to have a cv joint and hydraulics to trim and or steer an inboard engine. I have never seen anything like it and seems like the picture is missing some important details because I don't see it working correctly the way it appears. Any idea what it is and how it operates?
Thanks!

 

[ahicks]

I don't remember many of the particulars, but those drives were used on big HP (750-1000+) offshore boats. The idea was to be able to maintain the ability to trim while keeeping a lot of the prop out of the water for reduced drag.

Thinking it might have been a Don Aronow design?

 

[QBhoy]

It’s a surface drive. Used often on power boats of a serious type.

 

[FunInDuhSun]

Arneson Drive.
Howard Arneson was a genius.

::: Howard Arneson Tribute :::

www.howardarneson.com

 

[mgjtkt]

What location? Another project!

 

[platapus77]

What location? Another project!

Boat was listed in Santa Barbara craigslist. California. Thanks for the replys guys.

 

[platapus77]

Boat was listed in Santa Barbara craigslist. California. Thanks for the replys guys.

I can't find the add now but this was on a 34' (about) fishing boat, not a speed demon. Interesting

 

[platapus77]

Found it, https://santabarbara.craigslist.org/boa/d/oxnard-custom-32/7343562067.html .

 

[ahicks]

My bet is that drive replaced a single engine inboard setup and was one of the bigger reasons that project was never completed.