 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
koxxy
Joined: 19 Oct 2011
Posts: 28
Location: Beaverton, OR
|
 Posted: Mon Mar 11, 2013 11:47 am Post subject: electric propulsion? |
 |
|
Hello Kolb flyers,
since Chris brought it up: I have been mostly lurking and almost went for a Kolbra, but I have recently begun building an Earthstar eGull. As much is I liked the folding wings and two-seat capability of the Kolbra, the prospect of having my ears within inches of a screaming 2-stroke finally convinced me to go electric. The state of battery-electric propulsion pretty much rules out 2 seats, and even a single seat ultralight has to be very efficient. The eGull is one of the few affordable aircraft that fits the bill, plus Mark Beierle has more experience with electric propulsion than most (180 hours in his own eGull, for example).
If you are interested, a few specs:
single seat pusher, tricycle gear, 24' cantilevered wing, 40kW (54HP) motor, 10+kWh battery (170 lbs!)
The airframe will comply with ultralight limits, and the battery is considered fuel (must fit in the same volume as 5gal fuel).
Battery, motor, regulator and charger will come from Zero Motorcycles. Including prop and a (used) Rotax C gearbox, propulsion will set me back around $12k.
Mark figures this configuration will get me off the ground in less than 100 ft, climb at better than 1200fpm, glide at 13 to 14 g/s ratio, and give me at least 1 hour air time with reserve. Not exactly a x-country machine, but as battery energy density increases, I might eventually make it to Rock House from Beaverton, OR. Very simple and robust (2 moving parts!), and quiet enough to fly without headphones. And "fuel" cost of $1-2 per hour!
Does anyone know of a list that caters to electric propulsion ultralights? I'll continue to monitor this list - you guys always have interesting topics and great pictures and videos.
Martin
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
 |
Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
|
| Posted: Mon Mar 11, 2013 1:34 pm Post subject: electric propulsion? |
|
|
At 03:46 PM 3/11/2013, Martin Koxxy wrote:
| Quote: |
Battery, motor, regulator and charger will come from Zero Motorcycles. Including prop and a (used) Rotax C gearbox, propulsion will set me back around $12k.
Mark figures this configuration will get me off the ground in less than 100 ft, climb at better than 1200fpm, glide at 13 to 14 g/s ratio, and give me at least 1 hour air time with reserve. Not exactly a x-country machine, but as battery energy density increases, I might eventually make it to Rock House from Beaverton, OR. Very simple and robust (2 moving parts!), and quiet enough to fly without headphones. And "fuel" cost of $1-2 per hour! |
How long does it take to charge the battery? I assume that needs a robust source of electricity?
-Dana
--
One thing about liberty, lots of people do things I wouldn’t pay for, and more power to them. It’s when they want to do it with my money that I get concerned.
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
|
koxxy
Joined: 19 Oct 2011
Posts: 28
Location: Beaverton, OR
|
| Posted: Mon Mar 11, 2013 2:44 pm Post subject: electric propulsion? |
|
|
From empty, 10 hours on a single 15A 110V AC outlet. Or half that if you have two circuits and 2 chargers. Or less if you have a 240V outlet. Or 45 minutes on a CHAdeMo outlet...
http://www.zeromotorcycles.com/charging/
I plan to tie the plane down within reach of a single 110V outlet. No harm to leave it plugged in overnight (or all week). But yes, one flight per day, or maybe one in the morning and one in the evening. Batteries can also be swapped out, but they are heavy and expensive.
On Mon, Mar 11, 2013 at 2:32 PM, Dana Hague <d-m-hague(at)comcast.net (d-m-hague(at)comcast.net)> wrote:
[quote] At 03:46 PM 3/11/2013, Martin Koxxy wrote:
| Quote: |
Battery, motor, regulator and charger will come from Zero Motorcycles. Including prop and a (used) Rotax C gearbox, propulsion will set me back around $12k.
Mark figures this configuration will get me off the ground in less than 100 ft, climb at better than 1200fpm, glide at 13 to 14 g/s ratio, and give me at least 1 hour air time with reserve. Not exactly a x-country machine, but as battery energy density increases, I might eventually make it to Rock House from Beaverton, OR. Very simple and robust (2 moving parts!), and quiet enough to fly without headphones. And "fuel" cost of $1-2 per hour! |
How long does it take to charge the battery? I assume that needs a robust source of electricity?
-Dana
--
One thing about liberty, lots of people do things I wouldn’t pay for, and more power to them. It’s when they want to do it with my money that I get concerned.
| Quote: |
get="_blank">http://www.matronics.com/Navigator?Kolb-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
[b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
|
Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
|
| Posted: Mon Mar 11, 2013 3:11 pm Post subject: electric propulsion? |
|
|
At 06:44 PM 3/11/2013, Martin Koxxy wrote:
| Quote: | From empty, 10 hours on a single 15A 110V AC outlet. Or half that if you have two circuits and 2 chargers. Or less if you have a 240V outlet. Or 45 minutes on a CHAdeMo outlet...
http://www.zeromotorcycles.com/charging/
I plan to tie the plane down within reach of a single 110V outlet. No harm to leave it plugged in overnight (or all week). But yes, one flight per day, or maybe one in the morning and one in the evening. Batteries can also be swapped out, but they are heavy and expensive. |
About what I thought... gets limiting when you get bored with the local area.
-Dana
--
I do not know with what weapons World War 3 will be fought, but World War 4 will be fought with sticks and stones.-- Albert Einstein
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
|
russk50(at)gmail.com
Guest
|
| Posted: Mon Mar 11, 2013 4:43 pm Post subject: electric propulsion? |
|
|
DanaNot Kolb-related but --
If this World War Number Three
Must inevitably be
Then #4, as sure as taxes
Will be fought with stone-age axes
Russ
On Mar 11, 2013, at 7:09 PM, Dana Hague wrote:
[quote] At 06:44 PM 3/11/2013, Martin Koxxy wrote:
| Quote: | From empty, 10 hours on a single 15A 110V AC outlet. Or half that if you have two circuits and 2 chargers. Or less if you have a 240V outlet. Or 45 minutes on a CHAdeMo outlet...
http://www.zeromotorcycles.com/charging/
I plan to tie the plane down within reach of a single 110V outlet. No harm to leave it plugged in overnight (or all week). But yes, one flight per day, or maybe one in the morning and one in the evening. Batteries can also be swapped out, but they are heavy and expensive. |
About what I thought... gets limiting when you get bored with the local area.
-Dana
--
I do not know with what weapons World War 3 will be fought, but World War 4 will be fought with sticks and stones.-- Albert Einstein
[b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
|
aoldman(at)xtra.co.nz
Guest
|
| Posted: Mon Mar 11, 2013 9:54 pm Post subject: electric propulsion? |
|
|
While the electric option may be some what limiting ,I for one applaud the decision to give it a go. It is only by people willing to work on developing new technology's and backing that with their own money that will help us all in the long run to achieve the ultimate goal of affordable flight . I think that’s called experimental . Who knows it may work out for some folk to have a local around the patch aircraft that has very low operating costs and another machine for the long hauls . Next step is charge with sola power or develop a motor that gives the power needed from a sola panel backed up by batteries . Great stuff.
Downunder
Kolb MK111
503 { running costs about $45.00 per hour in fuel }
do not archive
From: Larry Cottrell (lcottrell1020(at)gmail.com)
Sent: Tuesday, March 12, 2013 2:01 PM
To: kolb-list(at)matronics.com (kolb-list(at)matronics.com)
Subject: Re: electric propulsion?
Well Martin, if you plan to come to the Rock House, you had best think of a way to pack a generator with you, because while we have electricity, I am not sure how many there are between us.  Better still put it in a trailer, and drive it down. Just a rough guess at an hour of flight time a day, I think you are going to have to start a week early. Larry
On Mon, Mar 11, 2013 at 5:09 PM, Dana Hague <d-m-hague(at)comcast.net (d-m-hague(at)comcast.net)> wrote:
| Quote: | At 06:44 PM 3/11/2013, Martin Koxxy wrote:
| Quote: | From empty, 10 hours on a single 15A 110V AC outlet. Or half that if you have two circuits and 2 chargers. Or less if you have a 240V outlet. Or 45 minutes on a CHAdeMo outlet...
http://www.zeromotorcycles.com/charging/
I plan to tie the plane down within reach of a single 110V outlet. No harm to leave it plugged in overnight (or all week). But yes, one flight per day, or maybe one in the morning and one in the evening. Batteries can also be swapped out, but they are heavy and expensive. |
About what I thought... gets limiting when you get bored with the local area.
-Dana
--
I do not know with what weapons World War 3 will be fought, but World War 4 will be fought with sticks and stones.-- Albert Einstein
| Quote: |
get="_blank">http://www.matronics.com/Navigator?Kolb-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
|
--
If you forward this email, or any part of it, please remove my email address before sending.
[quote]
href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronics.com/Navigator?Kolb-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
[b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
