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Old 07-04-2016, 19:55   #61
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Re: Hydraulic drive for Catamaran?

Hydraulics is old school. Yes they have SEA o-ring fitting that hardly ever leak and variable displacement pumps and motors but unless you need it for specialize application like cylinders to generate linear forces it is old.
Modern electronics ac voltage controls make electric motors far more efficient. Ships use them locomotives use them. Hydraulics are great for a backhoe but not for linear drives.
Sorry guys😄😄


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Old 09-04-2016, 23:17   #62
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Re: Hydraulic drive for Catamaran?

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Originally Posted by Sailor Doug View Post
Hydraulics is old school. Yes they have SEA o-ring fitting that hardly ever leak and variable displacement pumps and motors but unless you need it for specialize application like cylinders to generate linear forces it is old.
Modern electronics ac voltage controls make electric motors far more efficient. Ships use them locomotives use them. Hydraulics are great for a backhoe but not for linear drives.
Sorry guys����


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Yeah, I know electrics is cute and trendy but for reliability and grunt you can't beat hydraulics. One drop of water and your high tech electric motor is fried in a giant blue flash. Hydraulics will work reliably under hundreds of feet of water and you don't need a college degree to service and repair it.
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Old 10-04-2016, 08:38   #63
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Re: Hydraulic drive for Catamaran?

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Yeah, I know electrics is cute and trendy but for reliability and grunt you can't beat hydraulics. One drop of water and your high tech electric motor is fried in a giant blue flash. Hydraulics will work reliably under hundreds of feet of water and you don't need a college degree to service and repair it.

You don't hear the noise or see the leaks under water.😜


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Old 10-04-2016, 10:08   #64
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Re: Hydraulic drive for Catamaran?

I don't know about hydraulics being old school, it depends on the application. Kubota tractors are hydraulic drive , the 4WD ones are on every wheel! Electrics are great for smaller things. I ran a shop with 50 - 2000 ton presses.... you aren't going to do that with electric actuators! But hydraulics are heavy for sure.
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