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capedavis(at)yahoo.com
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 Posted: Wed May 04, 2022 4:34 am Post subject: Electric mowers |
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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 rpm’s for an hour cutting $600 or less can they
Be modified to fly a KOLB?
Sent from my iPhone
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Jerry-TS-MkII
Joined: 23 Aug 2017
Posts: 79
Location: Indiana
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| Posted: Wed May 04, 2022 11:15 am Post subject: Electric mowers |
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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:
| Quote: |
Have any of you KOLBERS looked into the new group of electric lawn
mowers for batteries, motors,controllers ? They mow wide open 3000
rpm’s for an hour cutting $600 or less can they
Be modified to fly a KOLB?
Sent from my iPhone
|
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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ridefst
Joined: 18 Oct 2019
Posts: 16
Location: Ohio
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| Posted: Wed May 04, 2022 11:35 am Post subject: Electric mowers |
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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(at)bluemarble.net (1957grnchev(at)bluemarble.net)> wrote:
| Quote: | --> Kolb-List message posted by: 1957grnchev(at)bluemarble.net (1957grnchev(at)bluemarble.net)
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:
> --> Kolb-List message posted by: chris davis <capedavis(at)yahoo.com (capedavis(at)yahoo.com)>
>
> Have any of you KOLBERS looked into the new group of electric lawn
> mowers for batteries, motors,controllers ? They mow wide open 3000
> rpm’s for an hour cutting $600 or less can they
> Be modified to fly a KOLB?
>
> Sent from my iPhone
>
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eferrer" target="_blank">http://forums.matronics.com
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errer" target="_blank">http://wiki.matronics.com
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lambdinwilliam(at)gmail.c
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| Posted: Wed May 04, 2022 3:50 pm Post subject: Electric mowers |
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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. It’s going to happen!
Lanny
Sent from my iPhone
| Quote: | On May 4, 2022, at 3:16 PM, 1957grnchev(at)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
> rpm’s for an hour cutting $600 or less can they
> Be modified to fly a KOLB?
> Sent from my iPhone
|
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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