Transducer fitment advice ???

[disorderly]

Just took some more photo's but only one came out.My photography skills really suck.
Hopefully though it shows my dilemma.
My garmin ducer, much like the one in Ian's(finding time) photo above is fitted similarly and works fine.

However the photo below shows the flat front face of the furuno ducer and it is angled back maybe 15 degrees with the bottom jutting out the furtherest.....see what I mean,it's an odd shaped transducer??...what happens is that it catchs the water and forces it upward...sometimes up to a metre and a half or so and onto the motor as well.

Do any of you guys that have found lowering the ducer has helped, actually have this type of ducer and if so what can be done to stop the water spout happening?

Scott

[FNQCairns]

Scott that one would make a great trailer sailor transducer! They mixed up the young fella's work experience design file with the paid blokes!

What about a piece of alum sheet that mounts tothe hull under the existing SS transducer bracket using the same screw holes and bent to extend the hull until it meets the transducer proper, effectively covering that gap, it could be bent at larger than 90deg if you go lower with the transducer than now and if there is a small gap or if it may flex up with speed some marine sika to fill the mm or so gap.


cheers fnq

[nick_75au]

Hi disorderly,
To answer your first question, I think if you use sikaflex to fill the gap it may partially solve the problem, will make it a bit of a bugger to get off later and may not give you the result your after.
What is probably happening is either air trapped under the hull is crossing the face or the unit or air is being sucked in the gap between it and the hull. the sika will only fix it if its the second problem.

To really fix the current transducer I would make some sort of mold onto the front of the Transducer in the shape of a plum bow boat to fair the water either side of the unit and use epoxy or sika to fill the mold.
I've attached a quick drawing to describe what I mean. The transducer will need to be lowered as everyone else has mentioned and the new fairing will deflect any aerated water around rather than under the face of the transducer.
Regards
Nick

[finding_time]

Scott

Mate as fnQ and nick have stated Your going to have to modify either your transducer shape ( with something that sticks on) or modify the bottom of your hull with some sort of fairing block ( better idea i think) Because you have got to get that transducer lower. Pressed tinnies sit higher in the water than plate and glass boats and trap more air under the hull at speed this is then traveling over the face of your presently positioned transducer. get it lower!

Ian

You cant worry about stuff hitting your transducer whilist under way either if it lower chances are it wont but if it does it's really a case of sh!t happens

[marco]

if you still intend to fill the gap after lowering it , the furuno tech from the usa recommended that the gap be filled as well as setting up the transducer correctly ( as everyone has said above ) and to fill the gap with some of that expanding foam in a can stuff and to finish with a epoxy resin .

[disorderly]

Scott that one would make a great trailer sailor transducer! They mixed up the young fella's work experience design file with the paid blokes!


cheers fnq

Totally agree,Scott.
I've had this thing for a year now and I still can't figure out why it was designed as such.

Some good idea's there fella's...I'll have a think about devising something from the idea's above them and let you know how I get on..

Yes Ian, I agree that if by lowering the transducer and it get whacked by some debris than that's just life,isn't it.......

cheers fella's ....now I have something to work with anyway.

Scott

[hookinin]

Looks nothing like the airmar transducer i run with my furuno not saying its wrong but is it possible to get a different transducer. That one looks like it should only be on a sailing boat or displacement hull. Just another option that may be easier in the long run?.
Good luck Gaven

[Outsider1]

Here is a link to Airmar's product pages. You should be able to find your Transducer details there. Certainly sounds like it might not be the right style for a planing hull transom mount.

http://airmartechnology.com/airmar20...s/OpenData.asp

Cheers

Dave

[Outsider1]

Here is a link to Airmar's product pages. You should be able to find your Transducer details there. Certainly sounds like it might not be the right style for a planing hull transom mount.

http://airmartechnology.com/airmar20...s/OpenData.asp

Cheers

Dave

I can't find an Airmar Transducer that look even remotely like the picture you put up Scott.??

Dave