Based on my limited understanding it seems trim tabs, overall, are more efficient. Also if these were more efficient it would include independent documented testing.
Not only do i see an issue with causing drag by putting a perpendicular wall against the in flow of water, but i also see an issue with over time causing an extra serious stress on the transom it's mounted to. I don't see anyway that these are more efficient. And i have serious concerns with transom wear. Also what if you run a ground in shallows. Hitting a ground will not effect trim tabs much at all but I can see these ripping one hell of a hole in your boat. Just my thoughts. Nothing about this design looks appealing
What I don't understand is how can a flat plane that comes down paralleling the transum give better fuel economy. I can only imagine it also digs in to top speed and cruising speed as well I can get that it causes drag on one side or the other that may help a whole shot in keeping the bow down but it's gotta kill the fuel economy and the top end speed. Or please explain the dynamics of how that works
Based on the other comments, I'm glad I'm not the only one that agrees trim tabs (by the laws of physics) should be more effective/efficient. The only thing this system has going for it is it's automatic.
Not understanding exactly how these work. If anything they'd be counterintuitive of a trim tab and also create drag. Trim tabs do all of the above without scrubbing speed. How is handling and fuel economy not sacrificed with that much drag
