Caterpillar Drive... (The Red October)Magnetohydrodynamic drive.
Jim...
PS: But they had trouble in REVERSE too
Caterpillar Drive... (The Red October)Magnetohydrodynamic drive.
I never liked that Murphy guy!Doubtful....While it would be nice to keep the weight low in the boat, Murphy's law states that heavy batteries that replace keels will regularly fail and require replacement on an all too often schedule..
You're right about low. My old boat has 80 gallons of fuel tankage below the cabin sole. The tanks are integral to the glass hull but above the lead keel which is bolted on to the hull. These tanks were designed for the prominent gasoline engines of the day (50-60's) that required big fuel tanks.I never liked that Murphy guy!
I was/am joking about keel replacing but if there was a cavity inside the keel that had a battery housing that could be raised for battery maintenance it might work. The more storage the greater the range.
There have been some pretty amazing advances in 3D printing and solid state battery tech. Who knows maybe print your own custom shape???The trick would be what batteries would fit the space?
Too easy to get into, who would put batteries there?You're right about low.
The trick would be what batteries would fit the space?
I'll mention this to the next owner.
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I've seen plenty of under the floor gensets, mainly on Hunters, and I can't imagine the headache that maintenance is. I intentionally bought a boat with an honest walk in engine room with 360 degree access to both the main engine and the gen set, never mind the A/C units, refrigeration, watermaker, etc., because I knew that if maintenance on my mechanical systems was a pain, it wouldn't get done as frequently as it should. Tearing apart the boat or reaching down into the bilge with one's fingertips to change the oil and filters is not conducive to regular maintenance.If I were King..... It would be gen-set low in the boat. Say in a bilge type area. It would power all the electrics including electric drive.. Oh and diesel gen-set for sure.
That is the thinking I was raised with. Our live-aboard was designed with just such an engine room, not a compartment. That's the working commercial mariner, mind set.I intentionally bought a boat with an honest walk in engine room with 360 degree access to both the main engine and the gen set
You could build a LiFePo4 bank in there with prisimatic cells.You're right about low. My old boat has 80 gallons of fuel tankage below the cabin sole. The tanks are integral to the glass hull but above the lead keel which is bolted on to the hull. These tanks were designed for the prominent gasoline engines of the day (50-60's) that required big fuel tanks.
Integral fiberglass pipes at the bottom lead any bilge water from forward to beneath the tanks and into the deep sump so these spaces would stay dry. You could place batteries here that would be below the sole yet easy enough to maintain beneath the lifting cabin sole.
The trick would be what batteries would fit the space?
I'll mention this to the next owner.
I’m not much of a chemist but I think sulphuric acid is dicey stuff to be around!I am really liking the look of All U Get's
Magnetohydrodynamic drive.
-Will (Dragonfly)
I wasn’t sure if I knew what prismatic cells were so started down the interweb rabbit hole, turns out I did know but I came across this reference.You could build a LiFePo4 bank in there with prisimatic cells.
I have been doing research on the DIY LiFePo4 batteries with prizimatic cells. In the next year or two, I will need to replace my (6) 6-volt pack for my motorhome and the 4D lifeline for my C30. I can build a 390AH pack with aluminum cased cells that will fit in the same area as the 4D. With all of the parts, i will not cost much more than the (6) 6-volt lead acid+ the 4D Lifeline. I could then use the same pack in both. boat in summer and motorhome in winter and just keep a single Group 27 in place in the off season.I wasn’t sure if I knew what prismatic cells were so started down the interweb rabbit hole, turns out I did know but I came across this reference.
Isn't there a 'fella' that does that for you?You could build a LiFePo4 bank in there with prisimatic cells.
I think the “fellas” name is Hayden Watson!Isn't there a 'fella' that does that for you?
No I think the idea was in the book "Hunt for Red October". The "Caterpillar Drive" used on the silent Soviet sub skippered by Sean Connery.The Philadelphia experiment.
Have you seen this site? You know if it was secret and military you may never see what your wish...the Philadelphia experiment