Originally Posted by HPMG
Shapp, I don't know anything about drift boats....what do they make the bushings out of? Some sort of plastic?
I drilled my oarstands for 5/8" lock shafts and then made brass bushings to reduce them to 1/2" so I could use a lighter weight oarlock.
Boats with oarlocks mounted on the gunnels tend to have bronze sockets, although some have multi-position plates with 2 or 3 holes per side which are usually UHMW plastic. Click on the link and scroll down the page for an example.
Do It Yourself Drift Boat Kits - Build Your Own Custom Driftboat - Boulder Boat Works, Inc.
Glad the Games... threads are useful. I think your fittings would be a great product if you can figure out a way to lower the cost of machining. You could also design some oarstands, etc. and offer a complete frame. The non-adjustable oarstands in WITW's post look cool. If you could build a sliding plate, like the Sid's Sports unit (shown on Jack's website), for fore and aft adjustability and also mount the stand on the plate so it adjusts for width (inboard- outboard) it'd be the ultimate for a double-rail frame.
At pressure points where rubbing is a problem (the aluminum leaves black marks) I use Vet Wrap, like they use on racehorses' fetlocks. Very easy to put a few turns on the fitting, not affected by water, and you can slice it off when it gets ratty.