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Old 27 February 2017, 17:21   #1
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Country: UK - Scotland
Town: Crieff
Boat name: No Name
Make: Humber
Length: 7m +
Engine: Single Volvo inboard
Join Date: May 2016
Posts: 4
Humber 7.5 floorplan

I'm thinking of opening up the floor on my Humber 7.5 about 2004 vintage to install a through-hull transducer and wonder if anyone has a diagram of the floor support structure.
Cheers
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Old 27 February 2017, 18:26   #2
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Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
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Yep, I'll try and find one for you but meanwhile, you don't need to be concerned because the structure is simple. A V hull with two mahogany longitudinals from the transom to the bow. If you have the single inboard engine as in your profile, you'll find a longit at each side of the engine bay, if you're talking about an outboard engined boat you'll find the longits are attached to the transom by the transom knees.
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Old 28 February 2017, 03:50   #3
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Length: 7m +
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Humber floorplan

Hi JW,
Thanks for your input. Yes, I've got an inboard diesel, 150hp Volvo, I believe.
I want to install a thru-hull transducer rather than transom mount it and I also want to investigate the drain from the bow locker as it seems to be blocked. Both tasks require lifting some floor panels and I don't want to tackle it without some idea what I'm cutting into.
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Old 02 March 2017, 17:54   #4
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Unless you have a particular application which requires you to cut a hole in the neck, then I'd suggest you mount the transducer in the engine compartment. Clean the surface well and bed the transducer into a big skoosh of silicon sealer. Try to lay down the silicon without air voids within it.
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