What Is The Deadrise on a 1979 F44?

[Lean Wolf]

I am installing a new GPS/Depth Sounder in my 1979 F44, does anyone know what the hull deadrise is for installation of a bronze through hull transducer? Trying to figure out which degree transducer to buy. Thank you!
Drew

[larryeddington]

most of the transducers I have seen are vertical they employ a fairing that you cut at the appropriate dead rise angle and place half on water side and other half on inside of boat. Ergo the transducer sets perpendicular to the water surface at the end of the day.

[Stripermann2]

Larry is correct with the fairing block.

http://www.airmartechnology.com/uploads ... 008-05.pdf

Deadrise is measurement in angle, taken at the transom. In case of the F32, it's 5 degrees I believe.

[comodave]

I am not sure what the F44 is, but on my F32, I used the 6 to 12 degree transducer for my Raymarine system. The angled transducers are great because you do not need a fairing block. Much easier to install.

[larryeddington]

Question regarding deadrise; at the transom it seems to be near nothing? Forward where ducers are usually installed (infront of raw water intakes to limit cavitation) it is usually much more. I did a rough measurement of my f28 mid boat where the ducers would go and got 20 to 22 degree. Plus if any side scan you will need two ducers one for each side as keel will get in the way. If straight down signal then only one ducer is needed.

[Lean Wolf]

Thank you for your replies everyone. I am going to go with an Airmar bronze transducer that does not need the fairing block. I guess I need to figure out exactly where I am going to mount it prior to figuring out which beam angle I need.