Are All Through Hull Transducers Standard? - SailNet Community
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post #1 of 3 Old 04-20-2006 Thread Starter
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Are All Through Hull Transducers Standard?

I am wondering if all through-hull transducers for speed logs are a standard size. I ask because I am ordering a new one and want to know what is entailed with installing. I am hoping that it is simply a drop in the old hole and tighten down but I dont know. Anyone with information please let me know ASAP!
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post #2 of 3 Old 04-20-2006
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They vary in diameter based on manufacturer and model. I replaced an old Raymarine with a new and the hole size had changed

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post #3 of 3 Old 04-21-2006
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As usual, Jeff H is right.
Raymarine ST-50 Uses: 50mm diameter.
Silva offers two diameters: 43 mm and 52 mm
Autonav offers: 42mm dia.
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