Videos How a T-H Marine Atlas Jackplate Improves Performance and Protects your Engine June 11, 2019June 13, 2019 The Next Bite Atlas HD Hydraulic Jake Plate, Gary Parsons, Mercury, T-H Marine Gary Parsons explains how a hydraulic jack plate like the T-H Marine Atlas can not only increase the performance of your Mercury Engine but also help protect it while in shallow water. Other Related Posts: Walleyes, Rivers, and Big Smiles! Find em, Catch em! Mercury Active Trim for Faster Top Speed Mercury Marine Rigging Accessories: Battery Plate… Nitro ZV20 Walk Through with Chase Parsons