kulas44
Guru
A tilted element transducer has the element inside mounted at an angle appropriate to the hull angle or close anyway. They dont require a fairing block.
The big one looks like an Airmar transducer, with a water speed paddle wheel. There should be a number on a tag on the cable somewhere, usually close to the td. It could be a 600 or possibly a 1000 watt, or a tilted element unit. Unless it is on a fairly flat (horizontal) surface I would guess it is a tilted element unit, lack of an inside fairing block anyway.