On Sunday, December 17, 2017 12:38 PM, Mike <biankablog@verizon.net> wrote:
When I converted to EP ten years ago one of the things I wanted to get away from was having a diesel engine down below and squeezing my 6'2" frame into the small space to maintain it. I thought I would try using the Honda 2000 first as a poor man's hybrid. I find that is hard to beat it's reliability and at 47 pounds it is easy to move about on a table to for repairs and maintenance. Yes it does have it's limitations but, my 30 foot sailboat only needs about 450 watts of power to reach 3 knots. Even when I had the diesel 5 knots was about all I could stand in terms of noise and vibration. Hull speed was not a concern for me with either diesel or EP.
Mike
http://biankablog.blogspot.com
On Friday, December 15, 2017 11:55 AM, "Wade Carr rwadecarr@yahoo.com [electricboats]" <electricboats@yahoogroups.com> wrote:
Hello,
I watch most of these posts and do not reply. But today I feel like it. I have a 16000 lb junk rigged schooner, a 10kw electric motor with a 48 volt 220 amp/hr bank. I recharge with wind, or at the dock , or with 2 honda 2000 generators with 1 40 amp charger and another 25 volt charger. I have motored sailed this configuration over 1000 miles on the east coast. If you have chargers capable of providing more amps than you ask of them and can run them with a generator while underway you can effectively motor all day everyday. This left me at the end of each day with batteries that always needed a little more charging to get topped back off. I don't want to hear that in my anchorage so I have recently changed this up somewhat and now power two 3000 watt 48 volt switching power supplies with my generators. This allows me to motor at about 70 amps continuous without using or charging the batteries at all. I need a 6 kw genset and I would have 120 amps of 48 volt power for the motor. at 80 amps the boat can achieve hull speed of 7.5 knots.I prefer this than to constantly be charging batteries that can never be adequately topped off unless you run the gensets way more than I care to. This new configuration is new but is working very well. At some point a diesel genset will replace the Honda's. So if I leave the dock and need to motor all day up the ditch I turn on this setup and arrive at my anchorage with my batteries none the wiser for the trip and I do not need to run the generators any additional time while at anchor at all. The previous owner used a 1500 watt power supply and brought the boat from Nova Scotia to Tampa using a single Yamaha genset on deck. I feel that these boats must be designed to compete with boats with diesel motors or they remain a novelty as most of us do have other lives but want to enjoy or boats and not just wait for favorable winds. Wade
--------------------------------------------
On Thu, 12/14/17, mstafford@natca.net [electricboats] <electricboats@yahoogroups.com> wrote:
Subject: [Electric Boats] Re: Introduction
To: electricboats@yahoogroups.com
Date: Thursday, December 14, 2017, 9:51 AM
King_of_NewOrleans makes great!!!
points:1. If
you need long (motoring) range, you need
diesel.2. On a monohull sailboat... can't hang enough
solar panels3. Regen negligible unless sailing in double
digits.4. E-boats are generally driven at about half of hull
speed, or less.
5. Electric drive
really shines for boats that are
SAILED6. easier docking, maneuvering, power tacking,
reverse7. cheaper to repower if you have
time, skills, education
I'll
add:8. will dramatically improve your
sailing skills9. VERY low maintenance costs in
time and money10. will enrich your relationship
with the planet, which becomes a dear friend that you get to
hang out with all the time. I know... pretty woo-woo, but
the holistic beneficial effects of non-destructive planetary
e-play, of making a friend out of anenome, is worth all the
effort.
"I love electric, but it isn't for
everyone." (King_of_NewOrleans)
Mark Stafford,
e-player
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I watch most of these posts and do not reply. But today I feel like it. I have a 16000 lb junk rigged schooner, a 10kw electric motor with a 48 volt 220 amp/hr bank. I recharge with wind, or at the dock , or with 2 honda 2000 generators with 1 40 amp charger and another 25 volt charger. I have motored sailed this configuration over 1000 miles on the east coast. If you have chargers capable of providing more amps than you ask of them and can run them with a generator while underway you can effectively motor all day everyday. This left me at the end of each day with batteries that always needed a little more charging to get topped back off. I don't want to hear that in my anchorage so I have recently changed this up somewhat and now power two 3000 watt 48 volt switching power supplies with my generators. This allows me to motor at about 70 amps continuous without using or charging the batteries at all. I need a 6 kw genset and I would have 120 amps of 48 volt power for the motor. at 80 amps the boat can achieve hull speed of 7.5 knots.I prefer this than to constantly be charging batteries that can never be adequately topped off unless you run the gensets way more than I care to. This new configuration is new but is working very well. At some point a diesel genset will replace the Honda's. So if I leave the dock and need to motor all day up the ditch I turn on this setup and arrive at my anchorage with my batteries none the wiser for the trip and I do not need to run the generators any additional time while at anchor at all. The previous owner used a 1500 watt power supply and brought the boat from Nova Scotia to Tampa using a single Yamaha genset on deck. I feel that these boats must be designed to compete with boats with diesel motors or they remain a novelty as most of us do have other lives but want to enjoy or boats and not just wait for favorable winds. Wade
--------------------------------------------
On Thu, 12/14/17, mstafford@natca.net [electricboats] <electricboats@yahoogroups.com> wrote:
Subject: [Electric Boats] Re: Introduction
To: electricboats@yahoogroups.com
Date: Thursday, December 14, 2017, 9:51 AM
King_of_NewOrleans makes great!!!
points:1. If
you need long (motoring) range, you need
diesel.2. On a monohull sailboat... can't hang enough
solar panels3. Regen negligible unless sailing in double
digits.4. E-boats are generally driven at about half of hull
speed, or less.
5. Electric drive
really shines for boats that are
SAILED6. easier docking, maneuvering, power tacking,
reverse7. cheaper to repower if you have
time, skills, education
I'll
add:8. will dramatically improve your
sailing skills9. VERY low maintenance costs in
time and money10. will enrich your relationship
with the planet, which becomes a dear friend that you get to
hang out with all the time. I know... pretty woo-woo, but
the holistic beneficial effects of non-destructive planetary
e-play, of making a friend out of anenome, is worth all the
effort.
"I love electric, but it isn't for
everyone." (King_of_NewOrleans)
Mark Stafford,
e-player
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