The question was how many people should be onboard to safely operate the boat. Depending on flag, there is no minimum manning requirement for a...
First, it doesn't matter what the purpose is, the physics are identical. That .4 hp (25A at 12V) you produce by dragging some sort of water...
Have you not been reading this thread? I never said anything about performance degradation with extreme temperature, if for no other reason, I...
I guess I somehow missed the geothermal and windmill options for yachts. Let me know when someone has a battery pack available that will deliver...
I don't recall making any comparison between them, maybe you have someone else in mind. And I don't consider 15C (59F)to be an extreme...
You might want to review the self discharge figures for LiFePO4 cells and, yes, temperature has a great deal of impact on all chemical cells...
Can't see that happening. Considering that jets are horribly inefficient below around 20 knots or so and considering the power required to go...
"... are the same sheep as the population at large?" Sheep? No. Shepherds? When it works. Wolves, No doubt. Stupid? No. Green? When it pays.
I have real doubts about the use of diesel-electric for yacht propulsion in the foreseeable future. While it works well in applications such as...
Wastewater treatment and recycling on large yachts will become the norm. The zero-discharge yacht is on our horizon. This will require more...
"Anything you tow that takes power to turn it will be costing you fuel,..." I probably should have just wrote that to begin with instead of...
I guess the whole thing was too subtle. OK, let's try this. We burn diesel fuel in an engine to turn a reduction gear to turn a propeller...
OK ,the fan blowing on the sail must have been too subtle. Let's put a propeller on the bow to drive a generator and convert the energy in the...
"I just got to thinking about all that water passing the hull and wondered as I'd never heard of it." Please tell us that was a joke question ...
"Has anybody ever tried setting up ..." To extend that concept a bit further, the power created by the passing water could be used to power a...
" ... gold bulb ..." Now you are being ridiculous. Everyone knows boatyards are full of crooks, that's why depleted uranium has replaced gold...
"Guess it just wasn't quite big or deep enough ..." From the point of view of an old submarine sailor, I believe both knew exactly where the...
"I guess with the economy we're going to be seeing more of these?" If you mean the pocket cruise boats I don't think so. They already cost 2 to...
"I apologize ..." Thank you for posting that. No harm done. I am often quite blunt and some find that disturbing.
"I may be totally wrong ..." Keel bulb: [ATTACH] Bow Bulb: [ATTACH]
