Today's Message Index:
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1. 05:02 AM - =?utf-8?Q?Have_any_of_you_kolbers__been_looking_at_the_new_brush?= =?utf-8?Q?less_electric_lawnmowers_do_they_have_controllers_fit_?= =?utf-8?Q?to_run_an_electric_motor_on_a_KOLB_the_batteries_and_t?= =?utf-8?Q?he_motor_don=99t_appear_to_be_to_heavy_and_the_c?= =?utf-8?Q?ut_for_an_hour_wide_open_for_$_600_or_less_looks_like_?= =?utf-8?Q?everything_you_need_? (chris davis)
2. 05:34 AM - Electric mowers (chris davis)
3. 12:15 PM - Re: Electric mowers (1957grnchev@bluemarble.net)
4. 12:35 PM - Re: Electric mowers (Franklin Geiser)
5. 04:50 PM - Re: Electric mowers (William Lambdin)
Message 1
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Subject: | =?utf-8?Q?Have_any_of_you_kolbers__been_looking_at_the_new_brush?= |
=?utf-8?Q?less_electric_lawnmowers_do_they_have_controllers_fit_?= =?utf-8?Q?to_run_an_electric_motor_on_a_KOLB_the_batteries_and_t?=
=?utf-8?Q?he_motor_don=99t_appear_to_be_to_heavy_and_the_c?=
=?utf-8?Q?ut_for_an_hour_wide_open_for_$_600_or_less_looks_like_?=
=?utf-8?Q?everything_you_need_?
Sent from my iPhone
Message 2
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Have any of you KOLBERS looked into the new group of electric lawn mowers for batteries,
motors,controllers ? They mow wide open 3000 rpms for an hour cutting
$600 or less can they
Be modified to fly a KOLB?
Sent from my iPhone
Message 3
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Subject: | Re: Electric mowers |
Without knowing the exact numbers, a electric mower, would likely have
no more power than the same using a gas engine. And seeing that most
electric mowers, are rather small and weak, lets guess 3 bhp equivalent.
That's ~2200-2400 watts. (2.4 kW) That is also the prescribed power for
a particular 11 lb high performance R/C model, using 24 to 48 volts, and
from 100 to 50 amps. And a healthy 4000-5500Mah LiPo battery pack. At
full throttle, that would last about 15 minutes.. just right for a good
RC flight.
It could also make for a SERIOUS electric bicycle power-plant.. but a
503 Rotax is 37 kilowatts. You might need 15 electric lawn mowers to
produce the same results.
Check out
https://www.aeroexpo.online/aeronautic-manufacturer/brushless-electric-motor-3233.html.
40-60kW for $6500, minus the batteries, and electronic speed control.
On 2022-05-04 8:34 am, chris davis wrote:
>
> Have any of you KOLBERS looked into the new group of electric lawn
> mowers for batteries, motors,controllers ? They mow wide open 3000
> rpms for an hour cutting $600 or less can they
> Be modified to fly a KOLB?
>
> Sent from my iPhone
>
Message 4
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Subject: | Re: Electric mowers |
Look up Peter Sripol, he's built his own ultralight aircraft with a single
electric motor.
https://youtu.be/hp7JcmwKQcU
It's much larger than the lawn mower motors of course, and probably closer
to a rotax 277 in power, but it does work!
Would need two of those to get a Kolb flying reasonably I would think.
On Wed, May 4, 2022 at 3:16 PM <1957grnchev@bluemarble.net> wrote:
>
> Without knowing the exact numbers, a electric mower, would likely have
> no more power than the same using a gas engine. And seeing that most
> electric mowers, are rather small and weak, lets guess 3 bhp equivalent.
> That's ~2200-2400 watts. (2.4 kW) That is also the prescribed power for
> a particular 11 lb high performance R/C model, using 24 to 48 volts, and
> from 100 to 50 amps. And a healthy 4000-5500Mah LiPo battery pack. At
> full throttle, that would last about 15 minutes.. just right for a good
> RC flight.
>
> It could also make for a SERIOUS electric bicycle power-plant.. but a
> 503 Rotax is 37 kilowatts. You might need 15 electric lawn mowers to
> produce the same results.
>
> Check out
>
> https://www.aeroexpo.online/aeronautic-manufacturer/brushless-electric-mo
tor-3233.html.
>
> 40-60kW for $6500, minus the batteries, and electronic speed control.
>
> On 2022-05-04 8:34 am, chris davis wrote:
> >
> > Have any of you KOLBERS looked into the new group of electric lawn
> > mowers for batteries, motors,controllers ? They mow wide open 3000
> > rpm=99s for an hour cutting $600 or less can they
> > Be modified to fly a KOLB?
> >
> > Sent from my iPhone
> >
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>
>
Message 5
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Subject: | Re: Electric mowers |
The new Fisher airplane company is developing a range of electric propulsion packages
from 33 hp to 100 and hoping to offer them at about 1 and 1/2 times the
cost of equivalent ice unites. Might want to keep track of their progress. Its
going to happen!
Lanny
Sent from my iPhone
> On May 4, 2022, at 3:16 PM, 1957grnchev@bluemarble.net wrote:
>
>
> Without knowing the exact numbers, a electric mower, would likely have no more
power than the same using a gas engine. And seeing that most electric mowers,
are rather small and weak, lets guess 3 bhp equivalent. That's ~2200-2400 watts.
(2.4 kW) That is also the prescribed power for a particular 11 lb high performance
R/C model, using 24 to 48 volts, and from 100 to 50 amps. And a healthy
4000-5500Mah LiPo battery pack. At full throttle, that would last about
15 minutes.. just right for a good RC flight.
>
> It could also make for a SERIOUS electric bicycle power-plant.. but a 503 Rotax
is 37 kilowatts. You might need 15 electric lawn mowers to produce the same
results.
>
> Check out https://www.aeroexpo.online/aeronautic-manufacturer/brushless-electric-motor-3233.html. 40-60kW for $6500, minus the batteries, and electronic speed control.
>
>> On 2022-05-04 8:34 am, chris davis wrote:
>> Have any of you KOLBERS looked into the new group of electric lawn
>> mowers for batteries, motors,controllers ? They mow wide open 3000
>> rpms for an hour cutting $600 or less can they
>> Be modified to fly a KOLB?
>> Sent from my iPhone
>
>
>
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