How a tugboat works
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3. kirkelicious commented 9 years ago
#1 are you sure jet-skis aren't powered by jets?
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4. JesperA86 commented 9 years ago
#3 Correct, this tugboat has nothing in common with jetskis, dont know what #1 is talking about really...The tugboat have azipods which means the props can be rotated 360 degrees. A jetski have fixed prop/impeller which create a waterjet, that jet of water is then directed left and right to stear the jetski. 2 totally different concept and jet #1 claims they are the same
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5. sux2bu commented 9 years ago
#3 Yes I am sure. Geeezzz
#4 If you listen @ 3:38 you will hear about the thrust generated by the propellers being increased by the cones surrounding them. That actually makes them impellers ,not propellers because impellers are always spinning inside of some sort of housing (like in a jetski) or inside of cones , as in this tug. The cones help the impellers to suck-in more water due to the low-pressure area behind the blades and thrust is increased and directed with more force . The fact that the entire impeller housing can be rotated for steering vs a movable nozzle on a jetski for steering is about the only difference.
ps I built and raced a superstock Yamaha Waveraider for a number of years so I am pretty aware of what moves them.
#4 If you listen @ 3:38 you will hear about the thrust generated by the propellers being increased by the cones surrounding them. That actually makes them impellers ,not propellers because impellers are always spinning inside of some sort of housing (like in a jetski) or inside of cones , as in this tug. The cones help the impellers to suck-in more water due to the low-pressure area behind the blades and thrust is increased and directed with more force . The fact that the entire impeller housing can be rotated for steering vs a movable nozzle on a jetski for steering is about the only difference.
ps I built and raced a superstock Yamaha Waveraider for a number of years so I am pretty aware of what moves them.
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6. master_shake commented 9 years ago
The narrator almost makes it sound dirty...
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7. Herrminator commented 8 years ago
Doesn't play :-(
Firefox browser console says: "GET XHR https://videos.snotr.com/hls/14/14924/v.m3u8 [HTTP/1.1 404 Not Found 69ms]" (Jul. 13, 2016, 08:40 CEDT)
Firefox browser console says: "GET XHR https://videos.snotr.com/hls/14/14924/v.m3u8 [HTTP/1.1 404 Not Found 69ms]" (Jul. 13, 2016, 08:40 CEDT)
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8. Pepperoni39 commented 8 years ago
Does not work with Google Chrome as well
0 1. sux2bu commented 9 years ago