Re: Name that boat part
Technically, it's a type of permanent fender and so is the rub rail. We all know we can buy temporary docking fenders that we throw over the side to keep our boats from being beat up, your's is just a permanent.
A spray rail would need to be located more near the waterline if it was going to be effective at speed. My 91 Starcraft has a spray rail that the manufacturer calls a lift strake.