Raymarine st60 Depth sounder

[enterprise]

Can anyone tell me if I can mount the through hull transducer inside the hull without cutting a hole, I know it is possible with other makes but wasn't sure if it's possible with Raymarine Kit.
Cheers

 

[jfm]

Can anyone tell me if I can mount the through hull transducer inside the hull without cutting a hole, I know it is possible with other makes but wasn't sure if it's possible with Raymarine Kit.
Cheers

Depends which transducer. The ST60 defines the display unit, not the trans. Raym do both inside and thru hull transducers

 

[enterprise]

I have a standard Airmar transducer that was supplied with the st60 depth instrument, it's not a retractable one so would guess it's the basic model.
I have heard you can mount transducers in silicone to the inside of the hull without cutting the hole, would save me loads of work if I could.
Has anyone tried this with the "out of the box" basic transducer or should I have specified that I wanted an inside transducer?
Thanks for the reply jfm.

 

[aquatom]

I have seen this done before but don't use silicone as it will not transmit the ultrasound. If the hull is of solid constriction and not foam or wood core. You can test for a good position by putting a large splodge of vaciline on the face of the transducer and pressing it against the hull. When suitable position has been chosen then stick it down with something that sets hard like epoxy or car body filler.

 

[enterprise]

Thanks Aquatom,
Will give it a try, boat is out of the water at the moment so would have done a through hull before it goes back in, but Im running short on time, so I will give the vassaline trick a go once she's been refloated.

cheers guys.

 

[omega2]

They do say KY jelly is even better!! when you are back in the water, hang the transducer over board and note the return, then as advised try in places inside the hull, about 2/3rds back from the bow, in a place that will have a smooth flow of water, this you should be able to determine from the outside, i.e. no strakes or steps, also as flat as possible, but a little dead rise will not hurt. When you are happy with the return signal mark the position and lightly sand it flat then stick the transducer to that area using a slow curing epoxy resin kneading it into the mix to exclude any air. or build a dam with blue tack and float it onto the epoxy, or fix a tube of sufficient diameter and when set fill with castor/baby oil, or even glycol anti freeze.