Turning the Screws Page 3

Surface-Piercing Drives
Turning the Screws
Part 3: Drive Operation Diagrams

By George L. Petrie — June 2001

The four illustrations below show the various types of drives and how they operate under water: from left to right, a stern drive, waterjet, conventional inboard, and surface drive.

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This article originally appeared in the May 2003 issue of Power & Motoryacht magazine.