Out of and idea sharing spree I'm experiencing
just thought of sharing another solution I had to come up with, while stuck to a resiliently low budget and a VERY deep vee hulled Piver Nugget trimaran...
The thing was, my depth souder (an Autohelm ST30 bidata with an Airmar transducer, mounted from the inside in the traditional oil filled cup configuration)
was having a hard time providing accurate readings while sailing over under 2m of water.
I've contacted Raymarine and they suggested that I changed my assembly, while keeping all the components, to the more conventional through-hull configuration.
Well, Ok. The thing is my trimaran has a very steep v hull that largely exceeds the 18º allowed for a correct instalation of the forementioned setup.
I had to come up with a solution and here's how I solved the problem, witha little help from Autodesk Inventor:
The fairing itself was built from a block I've cooked out of 25mm pieces of spruce epoxied together, the first piece (where the transducer is fit) being 10mm WBP ply. The hole thing was filled, sanded, faired and finnaly epoxy coated before being fit to Fulô's hull.
Works great now!