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Old 12-16-2017, 08:18 AM
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FoggyNogginz FoggyNogginz is offline
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Join Date: Aug 2006
Boat: 2017 X10
Location: Center Hill Lake, Old Hickory, and Norris Lakes in TN
Posts: 2,304
Surface drives and trimmable shafts

I was wasting time on Instagram this morning and came across two things that I've never heard of before: Surface Drives and Trimable Prop Shafts. Sorry if I'm late to the game but the video was super cool so I thought I would share.


These are made by a company called Arneson, and they claim that there are all kinds of advantages like less prop cavitation, more fuel efficiency, and better speed. Of course the first thing that I thought of was the dramatically improved ability to eliminate unwanted in-laws....er..um....toes.


Seriously, this is an interesting concept that I've never seen before, and the part that really caught my eye was the trimable prop shaft. This seems like something that would take auto-launch to a whole new level on the larger boats. If two small rudders next to a prop can become "DockStar", then my guess is that this could become "TrimStar" someday??

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Old 12-16-2017, 09:48 AM
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2RLAKE 2RLAKE is offline
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Join Date: Jun 2007
Boat: '13 x10 with 6.0 and '93 25th Anniversary Limited Edition
Location: Cincinnati OH & Lake Norris TN
Posts: 4,946
interesting ...could definitely optimize the thrust output in a new way
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Old 12-16-2017, 09:52 AM
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MC25 MC25 is offline
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Join Date: Nov 2007
Boat: 2016 X30, 85 S&S
Location: Grapevine, Texas
Posts: 15,940
These attach to the back and not under, and typically used on go fast boats. Probably not applicable for our needs.



2016 X30-Wetsounds galore
2017 Misty Harbor Tri-Toon
1985 S&S- Gone but never forgotten
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Old 12-16-2017, 09:43 PM
atihanyi atihanyi is offline
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Join Date: Sep 2013
Boat: mastercraft prostar 190 1992 w/powerslot
Location: Wisco
Posts: 1,295
Driven a couple off shore boats with Areneson drives .They have been around forever and work very well
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Old 12-18-2017, 09:58 PM
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Bouyhead Bouyhead is offline
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Join Date: Feb 2009
Boat: 2008 22' Progression
Location: NYC
Posts: 1,613
Originally Posted by atihanyi View Post
Driven a couple off shore boats with Areneson drives .They have been around forever and work very well
A very popular drive here on Long Island back in the day. You really don't see too many around these days. My buddies who had a brief racing career has boxes and boxes of the stuff.
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Old 12-18-2017, 10:41 PM
surfskier75 surfskier75 is offline
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Join Date: Aug 2017
Boat: 2005 MariStar 245 SS 6.0L Crusader. Previous boat: 1989 Mirage Intimidator 270 with twin 350 Magnums
Location: Southern MD
Posts: 90
Those are the go to drives for offshore race boats. They work particularly well for turbine powered boats like this.

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Old 12-22-2017, 02:46 PM
Jorski Jorski is offline
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Join Date: Jul 2004
Boat: 1993 190 with LT1
Location: Toronto, Canada
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Introduced in 1980, dominated offshore racing in the eighties. It allows you to run a bigger prop, one blade is essentially out of the water at all times.
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