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Author Topic:   1998 Conquest 21 Transom Angle

retired posted 04-28-2014 01:40 PM ET (US)
I want to install an Airmar P66 transducer on my 1998 Boston Whaler Conquest 21. [What is] the transom angle on that boat?
contender posted 05-03-2014 05:24 PM ET (US)
You can purchase an angle finder at Home Depot about $10.00, its made by Johnson I beleive, yellow plastic, square in size about 5 inches by 5 inches, with a degree wheel and pointer, Place one end on the transom and just read the pointer, I think its about 12 degrees...good luck
fishgutz posted 05-03-2014 06:20 PM ET (US)
Isn't the transducer adjustable???
jimh posted 05-04-2014 10:45 AM ET (US)
The AIRMAR P66 transducer mounting bracket is not adjustable for the transom angle. Airmar supplies a wedge plate with the P66 which can be interposed between the mount and the transom. There are three possibilities for installation:
--no wedge, which fits most boats;
--wedge to increase angle to transom; or
--wedge installed in opposite manner to decrease angle to transom.
I anticipate you will find that the installation without the wedge plate will work.
retired posted 05-06-2014 02:45 PM ET (US)
According to Boston Whaler the transom angle for my 1998 Boston Whaler 21' Conquest is 15 degrees.
I ended up installing the transducer without the wedge.
picflight posted 05-23-2014 12:09 AM ET (US)
Do you have pictures and procedures that you used to do the installation?
I also have a P66 waiting to be installed on a 1998 Outrage 17. I was shocked to see how large it is compared to what I took off, perhaps a lowrance.
retired posted 05-23-2014 12:47 AM ET (US)
I followed the instructions that came with the transducer. It is quite simple. Airmar provides a template, which you tape to the transom and it shows you where to drill the holes.

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Author	Topic: 1998 Conquest 21 Transom Angle
retired	posted 04-28-2014 01:40 PM ET (US) I want to install an Airmar P66 transducer on my 1998 Boston Whaler Conquest 21. [What is] the transom angle on that boat?
contender	posted 05-03-2014 05:24 PM ET (US) You can purchase an angle finder at Home Depot about $10.00, its made by Johnson I beleive, yellow plastic, square in size about 5 inches by 5 inches, with a degree wheel and pointer, Place one end on the transom and just read the pointer, I think its about 12 degrees...good luck
fishgutz	posted 05-03-2014 06:20 PM ET (US) Isn't the transducer adjustable???
jimh	posted 05-04-2014 10:45 AM ET (US) The AIRMAR P66 transducer mounting bracket is not adjustable for the transom angle. Airmar supplies a wedge plate with the P66 which can be interposed between the mount and the transom. There are three possibilities for installation: --no wedge, which fits most boats; --wedge to increase angle to transom; or --wedge installed in opposite manner to decrease angle to transom. I anticipate you will find that the installation without the wedge plate will work.
retired	posted 05-06-2014 02:45 PM ET (US) According to Boston Whaler the transom angle for my 1998 Boston Whaler 21' Conquest is 15 degrees. I ended up installing the transducer without the wedge.
picflight	posted 05-23-2014 12:09 AM ET (US) Do you have pictures and procedures that you used to do the installation? I also have a P66 waiting to be installed on a 1998 Outrage 17. I was shocked to see how large it is compared to what I took off, perhaps a lowrance.
retired	posted 05-23-2014 12:47 AM ET (US) I followed the instructions that came with the transducer. It is quite simple. Airmar provides a template, which you tape to the transom and it shows you where to drill the holes.