4 ms·
The other reason is that the screw speed for a large vessel is about 100 RPM. It is better if the engine can drive the screw without a reduction gear that would
by vibrolax 12y ago
The other reason is that the screw speed for a large vessel is about 100 RPM. It is better if the engine can drive the screw without a reduction gear that would decrease efficiency.
http://www.gizmag.com/go/3263/ http://www.gizmag.com/go/3263/
- cellularmitosis 12y agoI think that's backwards reasoning. If the engine ran more efficiently at 200 RPM, they wouldn't install a transmission, they'd just use a smaller screw.
- myrryr 12y agoand they would get more cavitation. Which is bad.