posted 03-14-2007 02:09 PM ET (US)
Dave -
Bimini top hardware will be much too light-duty to handle even a small arch. The forces your boat will exert on that arch with rods and antennaes up there and pounding into a 5 footer will make short work of any bimini hardware out there.
Atlantic Towers in NJ has a hinge mechanism - perhaps they will sell you that for use in your project- you'd just have to weld it onto your arch.
There are also other hinges available - wake-boarding towers, etc all come with fold-away options and are probably beefy enough for use on your Whaler.
The only concern I have with that is where to route the wires and cables for your lights and antennas? It's why I chose a fixed-mount arch for Gambler instead of a fold-away option, which I was initially looking into.
Dave