On Sat, 12 Sep 2015 22:04:24 -0400 Max Dillon via Mercedes <mercedes@okiebenz.com> wrote:
> The gas turbines on my old ship drove the main reduction gear by > pushing the hot exhaust gas over a turbine, which was mechanically > connected to drive an input shaft. This was called a fluid coupling. I wonder how efficient it was. > The red. gear brought the speed down from some high RPM to about 100 > RPM, and then the propeller had variable pitch so the ship's speed > could vary from reverse to about 30 knots forward. Our stern would > walk to starboard when the engines were at "all stop" because the shaft > and prop were still spinning, which made docking maneuvering fun. I'll bet it did. But didn't you have stern thrusters to counteract that? Craig _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
