pallidin Posted January 13, 2018 #1 Share Posted January 13, 2018 8 Link to comment Share on other sites More sharing options...
.ZZ. Posted January 13, 2018 #2 Share Posted January 13, 2018 Look at those screws and the sonar bubble! I served on a Guided Missile frigate when I was in the Navy but things have really changed. 6 Link to comment Share on other sites More sharing options...
+and-then Posted January 13, 2018 #3 Share Posted January 13, 2018 The screws looked odd to me. They almost looked like they had a scalloped texture and that can't be right. I guess it's just a visual quirk of the light. That was Ingalls shipyard just west of my childhood hometown. 3 Link to comment Share on other sites More sharing options...
.ZZ. Posted January 13, 2018 #4 Share Posted January 13, 2018 2 minutes ago, and then said: The screws looked odd to me. They almost looked like they had a scalloped texture and that can't be right. I guess it's just a visual quirk of the light. That was Ingalls shipyard just west of my childhood hometown. They remind me of the latest fan technology in the automotive field. 1 Link to comment Share on other sites More sharing options...
pallidin Posted January 13, 2018 Author #5 Share Posted January 13, 2018 The "scalloped" texture is to increase thrust potential. You would be correct to suggest it's not a "stealth" design. But that's on purpose for this type vessel. 4 Link to comment Share on other sites More sharing options...
+and-then Posted January 13, 2018 #6 Share Posted January 13, 2018 13 minutes ago, pallidin said: The "scalloped" texture is to increase thrust potential. You would be correct to suggest it's not a "stealth" design. But that's on purpose for this type vessel. So it's really textured? I guess they figure the cavitation noise is a decent trade-off for more power. Interesting post. 3 Link to comment Share on other sites More sharing options...
Vorg Posted January 14, 2018 #7 Share Posted January 14, 2018 Propeller efficiency, noise and vibration requirements are the main considerations for propeller designs that can be applied for a wide variety of speeds and power densities, and for any type of ship. https://www.wartsila.com/products/marine-oil-gas/propulsors-gears/propellers/wartsila-fixed-pitch-propellers Just modern technology through research. 2 Link to comment Share on other sites More sharing options...
Myles Posted January 15, 2018 #8 Share Posted January 15, 2018 What stood out to me is that it seemed more narrow than others I have seen. Link to comment Share on other sites More sharing options...
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