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While all this
sounds good you need to look at the entire system and compare it against other
methods of propulsion for efficiency, simplicity, reliability, safety, and
cost. The same goes for hull firms, ballast systems, etc. Just
because one method looks good doesn’t mean that it will work. Read
carefully the Design Spiral article. R/Jay Respectfully, Jay K. Jeffries Andros Is., It is the mark of an educated mind to be able to
entertain a thought without accepting it. From: owner- Puting noise asside. For those interested HALDEX makes a pump that
boast a 90% efficientcy over all and low noise. It is discribed as a through
bore bushing type pump with extruded aluminum housing and cast iron covers with
a pressure balanced design. sorry about the other one. Sometimes my laptop just
sends stuff in middle of typing. as soon as I find out how to stop it I will. From recent
reading for my Naval Architecture program, hydraulic powered propulsion system
are one of the most inefficient ~30% of pump drive shaft HP makes it to the
propeller. As to noise, you can go through all the problems of sound
isolation but there is still excessive flow noise. R/Jay Respectfully, Jay K. Jeffries Andros Is., It is the mark of an educated mind to be able to
entertain a thought without accepting it. From: owner- someone mentioned that hydraulic
drive sys being loud inside the sub. is this true? and if this is true could
the noise be reduced by mounting the motor and pump on rubber mounts and insulating?
still considering hydraulic instead of sealed assembly "I have found a bolt
up solution in granger catalog". many have said that they get plenty of
power from the hydraulic
system. efficientcy
for extended use is more my concern. Check Out the new free AIM(R)
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