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#2
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posted to rec.boats.cruising
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On Thu, 13 Nov 2008 23:00:31 -0500, Marty wrote:
wrote: On Thu, 13 Nov 2008 10:03:06 -0500, Wayne.B wrote: On Thu, 13 Nov 2008 07:01:09 -0500, wrote: Other than instruments, VHF, and a DVD movie here and there on a little player, I don't really use any power, so a pretty small solar panel, coupled with limited amounts of motor sailing usually leaves me with a surplus. Running a god sized chart plotter and radar underway can use as much as 20 to 30 amps of 12 volt power. I stand by my original statement that outboards are not suitable for serious cruising. Another gross exaggeration to try and support an unsupportable premise. I HAVE a chartplotter and a radar on my sailboat. There is no setting I could use on them that would come even remotely close to drawing 20 to 30 amps. See my post Salty, he means amp-hours,,, it's like if I asked you what kind of gas milage you got on the highway and you said "Oh about 23 gallons". Cheers Martin Amp hours per what time period? His assertions are wild and without merit. I rarely leave my RADAR in transmit mode full time unless warranted by the conditions and situation. It spends a lot of time in standby, and when in transmit, It's usually not cranked up very much. As long as I can see what's within a mile or two or three of me, I'm fine. If I'm anywhere near the routes of a high speed ferry, I need to see farther. That's not often. I may not use 30 amp hours in a WEEK (or more) of sailing. My outboard and solar panel have no problem staying ahead of what I use, so Wayne's argument is just plain silly. In fact, I have to monitor things carefully and turn on interior lights to bleed off the surplus, so I don't overcharge the batteries when motorsailing with the outboard running - even at low speeds. |
#3
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posted to rec.boats.cruising
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wrote:
On Thu, 13 Nov 2008 23:00:31 -0500, Marty wrote: wrote: On Thu, 13 Nov 2008 10:03:06 -0500, Wayne.B wrote: On Thu, 13 Nov 2008 07:01:09 -0500, wrote: Other than instruments, VHF, and a DVD movie here and there on a little player, I don't really use any power, so a pretty small solar panel, coupled with limited amounts of motor sailing usually leaves me with a surplus. Running a god sized chart plotter and radar underway can use as much as 20 to 30 amps of 12 volt power. I stand by my original statement that outboards are not suitable for serious cruising. Another gross exaggeration to try and support an unsupportable premise. I HAVE a chartplotter and a radar on my sailboat. There is no setting I could use on them that would come even remotely close to drawing 20 to 30 amps. See my post Salty, he means amp-hours,,, it's like if I asked you what kind of gas milage you got on the highway and you said "Oh about 23 gallons". Cheers Martin Amp hours per what time period? Damn, guilty as charged. Amp hours per day.... gr As I said, my modest solar panels do pretty much everything. Mind you the alternator on my Volvo is rated at 130A or so,, cranks out 35A at idle... but that's just what came with it. Cheers Martin Cheers Martin |
#4
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posted to rec.boats.cruising
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On Thu, 13 Nov 2008 23:30:06 -0500, wrote:
In fact, I have to monitor things carefully and turn on interior lights to bleed off the surplus, so I don't overcharge the batteries when motorsailing with the outboard running - even at low speeds. Voltage regulator? Evidently the one you have is not smart enough. Casady |
#5
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posted to rec.boats.cruising
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On Fri, 14 Nov 2008 11:16:11 -0500, wrote:
On Fri, 14 Nov 2008 14:06:34 GMT, (Richard Casady) wrote: On Thu, 13 Nov 2008 23:30:06 -0500, wrote: In fact, I have to monitor things carefully and turn on interior lights to bleed off the surplus, so I don't overcharge the batteries when motorsailing with the outboard running - even at low speeds. Voltage regulator? Evidently the one you have is not smart enough. Casady Oh course it's not, Dummy. It's a small outboard motor charging system. They are primitive. If I wanted to add more complexity to it, I could add an external regulator. I don't feel the need for that, anymore than I need a regulator to adjust the mainsail trim by itself. I don't recall any battery problems with the old electromechanical ones. Those were huge, of course. If you have to adjust the load to suit the regulator, it isn't worthy of the name. These days smart costs next to nothing, and takes up next to no space. No excuse for primitive, when it doesn't work. You can supervise an alternator, if you like: some are busy driving the boat. or whatever. Casady |
#6
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posted to rec.boats.cruising
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#7
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posted to rec.boats.cruising
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![]() "Wayne.B" wrote in message ... You probably know this already but per the COLREGS boats equipped with radar are supposed to use it: Rule 7 Risk of Collision (b) Proper use shall be made of radar equipment if fitted and operational, including long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects. 'Proper use' does not compel you to have your radar going at all times. |
#8
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posted to rec.boats.cruising
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"Edgar" wrote in message
... "Wayne.B" wrote in message ... You probably know this already but per the COLREGS boats equipped with radar are supposed to use it: Rule 7 Risk of Collision (b) Proper use shall be made of radar equipment if fitted and operational, including long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects. 'Proper use' does not compel you to have your radar going at all times. Correct. It would be a matter of trade-offs between say running the batteries into the ground vs. keeping watch at critical times. Of course, the Admiralty Court would determine this after the fact. -- "j" ganz @@ www.sailnow.com |
#9
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posted to rec.boats.cruising
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![]() "Edgar" wrote in message ... "Wayne.B" wrote in message ... You probably know this already but per the COLREGS boats equipped with radar are supposed to use it: Rule 7 Risk of Collision (b) Proper use shall be made of radar equipment if fitted and operational, including long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects. 'Proper use' does not compel you to have your radar going at all times. Wrong! Look at the way the sentence is written. What it's really saying is this: (b) Proper use shall be made of radar equipment if fitted and operational. Proper use includes long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects. Now, I ask you, how is one to do long range scanning, radar plotting or equivalent systematic observation of detected objects if the system is switched off? The answer is you cannot, therefore you are in violation of the rule. No, it is cleat that if radar is installed and operational it must be used for the above when underway. Wilbur Hubbard |
#10
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posted to rec.boats.cruising
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![]() "Wilbur Hubbard" wrote in message anews.com... 'Proper use' does not compel you to have your radar going at all times. Wrong! Look at the way the sentence is written. What it's really saying is this: (b) Proper use shall be made of radar equipment if fitted and operational. Proper use includes long-range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects. Now, I ask you, how is one to do long range scanning, radar plotting or equivalent systematic observation of detected objects if the system is switched off? The answer is you cannot, therefore you are in violation of the rule. No, it is cleat that if radar is installed and operational it must be used for the above when underway. Wilbur Hubbard I disagree. It depends on circumstances, and you have the right to make a choice. If you are in a yacht going 4-6 knots with several miles visibility it is pointless to keep on long range scanning. If you are in a VLCC with six miles stopping distance it is quite a different ball game. But Jon is quite correct in his post.in that if you get it wrong it is not going to look too good in court |
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