A quick follow-up to a previous
post about the spray rails on our Tahoe. We have done two sea-trials with different spray rail setups, thought I'd pass along the results.
Without the spray rails, getting the Tahoe up on plane and back off is a bit like those "log-rides" you took when you were a kid. Soaked. And not in a good way.
Taking a lead from the previous post, we set up a spray rail along the chine made of Mahogany about 3/4" proud of the hull, the bottom edge of the rail is bevelled slightly (10deg). Bedded with 3M5200, fastened with 1-1/2" silicon bronze screws, capped with mahogany plugs, stained and epoxied.
In our first setup, we set the bow-end of the spray-rail back about 10" from the stem to allow for the cutwater. This took out about 80% of the spray but it is amazing how much still came from the remaining 10".
For the second trial, we spliced in an additional 10" of rail so the the rail runs from Stem to Stern and tapered the bow-end with a belt sander so that it came to a point at the stem. 100% improvement, no spray at all. Even the odd splash that came over the bow at idle was deflected away from the topsides.
Bottom line: Spray Rail is not optional and must run from Stem to Stern if you want to stay dry.