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TOPIC: 4788 Bimini bows and arms - dimensions

4788 Bimini bows and arms - dimensions 31 Jul 2017 02:24 #1

  • cosmo777
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Over the years, the bows and arms on my 4788 bimini have been adjusted (by me and previous owners) to where I'm not quite sure where they should be anymore.
I can get the bimini somewhat tight, but it still doesn't feel right.

Does anyone have the 4788 drawing, or can provide their dimensions, of where the bows and arms should be located so that the bimini is right/tight?

Thanks in advance.

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4788 Bimini bows and arms - dimensions 31 Jul 2017 16:15 #2

  • higgins_jr
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Pat, I'm not near my boat this week to be able to provide measurements per sec, and what specific measurements are you looking for. I imagine the Bimini bow rails/bases were pretty standard/factory preset to the fixing points on the fly bridge, so the "bows fixed to bows" are adjustable to firm up the canvas and should be equi-distant each side. In any event, when your canvas is changed, your canvas man will drape the canvas over the existing frame and stretch it accordingly to fit.

A suggestion since the 47's are quite common in your neck of the woods, grab some pics of other boats from the dock and see if you can guesstimate the bow on bow placements to see if they are substantially different from what you have. In any case, they should be adjusted to suit your canvas flap pockets if you have them, or to keep the Bimini firm. If you send me a PM or email of the specific measurements you need, I'll measure mine next week.


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John H
Brisbane QLD Aust

2000 - 4788/Cummins 370's
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