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Dean, Hydraulic propulsion is only ~30% efficient as compared to
electric drive. You have to have 2 hull through hulls for a hydraulic motor
as compared to a solid through hull for electric. And you still have
sealing issues with hydraulic motors (we always had issues with hydraulic ram
seals on the masts on our nukes…soup for hydraulic fluid). Any
dynamic seal will have issues at some point, at least with electric you are not
polluting the environment if you have a leak. R/Jay Respectfully, Jay K. Jeffries Andros Is., Bahamas A skimmer afloat is but a submarine, so poorly built it will not
plunge. From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Recon1st@aol.com Here
I am just a building away and the plan constantly changing. My
question is: What
are the disadvantages of main and thrusters being done with Hydro
motors. My
thoughts keep going back to forklifts. They will run all day, be charged
up overnight and move a lot of weight. I
am thinking of driving the pump with my 12hp 72v DC motor. I
am sure I would suffer efficiency converting to the hydro motor, but
am thinking with my battery capacity I can put up with the loss. The
advantages I see is no sealing prop shafts, leak problems and non electrical
speed control etc. I sure like the idea of running hydraulic lines rather
than electrical. Any
thoughts on this or has anyone tried or looked at this? Dean
Ackman
Start the year off right. Easy
ways to stay in shape in the new year. |