Bow thruster

Corrosion, Paint, Through Hulls, etc.
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Bow thruster

Postby Butchel » Mon Dec 26, 2016 7:49 am

I want to install a bow thruster on my 39' FB sedan but am very hesitant about installing an FRP tunnel in an aluminum hull because of potential un-bonding problems. Is it possible to mate a Lewmar bow thruster, for example, to an aluminum tunnel tube? Also, being somewhat lighter and shallower draft than a typical 40 footer, would a small thruster, say 3 hp, do the job?

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Re: Bow thruster

Postby Rockit » Mon Dec 26, 2016 11:31 am

You might want to ask Lewmar. Personally I'd check with a couple of suppliers to decide who was making the most sense.

Good luck.

Joe Napoli
1977 28' Express
Twin raw water cooled 318s
Beaver River--near mile 25 on the Ohio

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Re: Bow thruster

Postby thanksdad » Mon Jan 02, 2017 5:47 pm

Depending on your needs, would a stern thruster work instead? No tunnel to cut, just a few bolt holes under the swim platform instead. I know that is an over-simplification but, they do offer an alternative to cutting a hole in the bow.

Best of luck, Scott
Scott Ross
Thanks Dad
1988 32 Fisherman
Sandusky, Ohio

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Re: Bow thruster

Postby MetalHead » Mon Jan 02, 2017 6:09 pm

Looking at the Lewmar website, it looks like the tunnel is not specific to the thruster. A call is best to Lewmar, but looks like the install would fit on an aluminum tunnel. ... 0-Iss4.pdf

Here is a Vetus that gives tunnel choices as an example. ... ?pid=51499
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