The copperhead (Agkistrodon contortrix) is a member of the pit viper family, like most of the venomous snakes in North America. The copperhead (Agkistrodon contortrix) is a member of the pit viper family, like most of the venomous snakes in North America.
The Command Thrust models use the same bigger gearcase housing as the Mercury 150 FourStroke, but with an all-new 2.38:1 ratio ideally suited for pontoons and heavier boats. Itâs the first true oversized gearcase in the industry for outboards in this horsepower range.
Counter-torque: A method of control by which the motor is reversed to develop power to the opposite direction. Glossary of Crane Terminology-Page 2 of 11. EMH, Inc. l 550 Crane Drive l Valley City, OH 44280 l Phone (800) 283-8025 Cover Plate: The top or bottom plate of a box girder.