rjp
Well-Known Member
Re: through hull transducer
Many thanks again to all those who contributed their advice. Job was executed at low water Saturday against the wall at Dinas, Menai Straits, on a 5 metre tide range. The NASA transducer was the same diameter as the old Seafarer, but turned out shorter - now I know my boat is nearly 6inches thick ahead of the keel! So it's glued in with Purflex with a two inch long plug of same stuff moulded to the cable above the transducer. Given that it was a tight fit anyway (I had to firmly tap it in from below with a softwood plug against the working end which I also protected with several layers of masking tape) I can't see it's ever going to go anywhere though I'll probably try to source a longer one with a view to swopping them over the winter. I finished the job about 1800 and she refloated about 2300, by which time the Purflex was nicely skinned over. Inspection in the morning when I dried again confirmed everything was as it should be so returned to my mooring on the lunchtime tide. Now that I have a working echo sounder perhaps I can get some sailing done!
John
Many thanks again to all those who contributed their advice. Job was executed at low water Saturday against the wall at Dinas, Menai Straits, on a 5 metre tide range. The NASA transducer was the same diameter as the old Seafarer, but turned out shorter - now I know my boat is nearly 6inches thick ahead of the keel! So it's glued in with Purflex with a two inch long plug of same stuff moulded to the cable above the transducer. Given that it was a tight fit anyway (I had to firmly tap it in from below with a softwood plug against the working end which I also protected with several layers of masking tape) I can't see it's ever going to go anywhere though I'll probably try to source a longer one with a view to swopping them over the winter. I finished the job about 1800 and she refloated about 2300, by which time the Purflex was nicely skinned over. Inspection in the morning when I dried again confirmed everything was as it should be so returned to my mooring on the lunchtime tide. Now that I have a working echo sounder perhaps I can get some sailing done!
John
